feature: FDI tooth chart UI finalized.

Reviewed-on: http://178.131.50.201:3000/admin/dyolink/pulls/15

backend/prisma/migrations/20260505173000_add_organization_invitations/migration.sql

@@ -0,0 +1,33 @@
+-- CreateTable
+CREATE TABLE "organization_invitations" (
+    "id" TEXT NOT NULL,
+    "inviterOrganizationId" TEXT NOT NULL,
+    "inviterUserId" TEXT NOT NULL,
+    "invitedOrganizationId" TEXT,
+    "invitedOrganizationName" TEXT NOT NULL,
+    "invitedOwnerEmail" TEXT NOT NULL,
+    "invitedOrganizationType" TEXT NOT NULL,
+    "tokenHash" TEXT NOT NULL,
+    "expiresAt" TIMESTAMP(3) NOT NULL,
+    "acceptedAt" TIMESTAMP(3),
+    "revokedAt" TIMESTAMP(3),
+    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "updatedAt" TIMESTAMP(3) NOT NULL,
+
+    CONSTRAINT "organization_invitations_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateIndex
+CREATE UNIQUE INDEX "organization_invitations_tokenHash_key" ON "organization_invitations"("tokenHash");
+
+-- CreateIndex
+CREATE INDEX "organization_invitations_inviterOrganizationId_createdAt_idx" ON "organization_invitations"("inviterOrganizationId", "createdAt");
+
+-- CreateIndex
+CREATE INDEX "organization_invitations_invitedOwnerEmail_createdAt_idx" ON "organization_invitations"("invitedOwnerEmail", "createdAt");
+
+-- AddForeignKey
+ALTER TABLE "organization_invitations" ADD CONSTRAINT "organization_invitations_inviterOrganizationId_fkey" FOREIGN KEY ("inviterOrganizationId") REFERENCES "organizations"("id") ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "organization_invitations" ADD CONSTRAINT "organization_invitations_inviterUserId_fkey" FOREIGN KEY ("inviterUserId") REFERENCES "users"("id") ON DELETE CASCADE ON UPDATE CASCADE;

backend/prisma/migrations/20260505181000_rename_lab_permissions_to_organizations/migration.sql

@@ -0,0 +1,7 @@
+UPDATE "permissions"
+SET "name" = 'TAB_ORGANIZATIONS_READ'
+WHERE "name" = 'TAB_LAB_READ';
+
+UPDATE "permissions"
+SET "name" = 'TAB_ORGANIZATIONS_EDIT'
+WHERE "name" = 'TAB_LAB_EDIT';

backend/prisma/migrations/20260506163313_add_appointments/migration.sql

@@ -0,0 +1,26 @@
+-- CreateTable
+CREATE TABLE "appointments" (
+    "id" TEXT NOT NULL,
+    "organizationId" TEXT NOT NULL,
+    "patientId" TEXT NOT NULL,
+    "providerUserId" TEXT NOT NULL,
+    "startAt" TIMESTAMP(3) NOT NULL,
+    "endAt" TIMESTAMP(3) NOT NULL,
+    "purpose" TEXT NOT NULL,
+    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "updatedAt" TIMESTAMP(3) NOT NULL,
+
+    CONSTRAINT "appointments_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateIndex
+CREATE INDEX "appointments_organizationId_providerUserId_startAt_idx" ON "appointments"("organizationId", "providerUserId", "startAt");
+
+-- CreateIndex
+CREATE INDEX "appointments_organizationId_startAt_idx" ON "appointments"("organizationId", "startAt");
+
+-- AddForeignKey
+ALTER TABLE "appointments" ADD CONSTRAINT "appointments_organizationId_fkey" FOREIGN KEY ("organizationId") REFERENCES "organizations"("id") ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "appointments" ADD CONSTRAINT "appointments_patientId_fkey" FOREIGN KEY ("patientId") REFERENCES "patients"("id") ON DELETE CASCADE ON UPDATE CASCADE;

backend/prisma/schema.prisma

@@ -21,6 +21,7 @@ model User {
   ownedOrganizations Organization[] @relation("OrganizationOwner")
   sessions           Session[] // 👈 ADD THIS - opposite relation for Session
   sentStaffInvites   StaffInvitation[]
+  sentOrganizationInvitations OrganizationInvitation[]
 
   createdAt DateTime @default(now())
   updatedAt DateTime @updatedAt
@@ -57,7 +58,9 @@ model Organization {
 
   sharedWithMe     OrganizationLink[] @relation("OrganizationB")
   sharedWithOthers OrganizationLink[] @relation("OrganizationA")
+  sentOrganizationInvitations OrganizationInvitation[] @relation("OrganizationInvitationInviter")
   patients         Patient[]
+  appointments     Appointment[]
 
   createdAt DateTime @default(now())
   updatedAt DateTime @updatedAt
@@ -80,6 +83,7 @@ model Patient {
 
   organization Organization             @relation(fields: [organizationId], references: [id])
   treatments   PatientTreatmentHistory[]
+  appointments Appointment[]
 
   @@index([organizationId, createdAt])
   @@index([organizationId, lastName, firstName])
@@ -104,6 +108,26 @@ model PatientTreatmentHistory {
   @@map("patient_treatment_histories")
 }
 
+model Appointment {
+  id             String   @id @default(uuid())
+  organizationId String
+  patientId      String
+  providerUserId String
+  startAt        DateTime
+  endAt          DateTime
+  purpose        String
+
+  organization Organization @relation(fields: [organizationId], references: [id], onDelete: Cascade)
+  patient      Patient      @relation(fields: [patientId], references: [id], onDelete: Cascade)
+
+  createdAt DateTime @default(now())
+  updatedAt DateTime @updatedAt
+
+  @@index([organizationId, providerUserId, startAt])
+  @@index([organizationId, startAt])
+  @@map("appointments")
+}
+
 model Plan {
   id       String @id @default(uuid())
   name     String @unique // "Solo", "Small", "Medium", "Large", "Enterprise"
@@ -211,6 +235,32 @@ model OrganizationLink {
   @@map("organization_links")
 }
 
+model OrganizationInvitation {
+  id String @id @default(uuid())
+
+  inviterOrganizationId String
+  inviterUserId         String
+
+  invitedOrganizationId   String?
+  invitedOrganizationName String
+  invitedOwnerEmail       String
+  invitedOrganizationType String
+  tokenHash               String   @unique
+  expiresAt               DateTime
+  acceptedAt              DateTime?
+  revokedAt               DateTime?
+
+  inviterOrganization Organization @relation("OrganizationInvitationInviter", fields: [inviterOrganizationId], references: [id], onDelete: Cascade)
+  inviterUser         User         @relation(fields: [inviterUserId], references: [id], onDelete: Cascade)
+
+  createdAt DateTime @default(now())
+  updatedAt DateTime @updatedAt
+
+  @@index([inviterOrganizationId, createdAt])
+  @@index([invitedOwnerEmail, createdAt])
+  @@map("organization_invitations")
+}
+
 model Session {
   id           String   @id @default(uuid())
   userId       String

backend/prisma/seed.ts

@@ -74,8 +74,8 @@ async function main() {
       permissions: ['TAB_STAFF_READ', 'TAB_STAFF_EDIT'],
     },
     {
-      name: 'Labs / Clinics',
-      permissions: ['TAB_LAB_READ', 'TAB_LAB_EDIT'],
+      name: 'Organizations',
+      permissions: ['TAB_ORGANIZATIONS_READ', 'TAB_ORGANIZATIONS_EDIT'],
     },
     {
       name: 'Patients',

backend/src/app.module.ts

@@ -8,6 +8,8 @@ import { AdminModule } from './admin/admin.module';
 import { PrismaModule } from '../prisma/prisma.module'; // ✅
 import { PatientsModule } from './modules/patients/patients.module';
 import { StaffModule } from './modules/staff/staff.module';
+import { OrganizationModule } from './modules/organization/organization.module';
+import { AppointmentsModule } from './modules/appointments/appointments.module';
 
 @Module({
   imports: [
@@ -18,7 +20,9 @@ import { StaffModule } from './modules/staff/staff.module';
     PrismaModule, // ✅ ADD THIS
     AuthModule,
     PatientsModule,
+    AppointmentsModule,
     StaffModule,
+    OrganizationModule,
     AdminModule.forRoot(),
   ],
   controllers: [AppController],

backend/src/common/permissions.ts

@@ -4,8 +4,8 @@ export const ALL_TAB_PERMISSIONS = [
   'TAB_TODAY_EDIT',
   'TAB_STAFF_READ',
   'TAB_STAFF_EDIT',
-  'TAB_LAB_READ',
-  'TAB_LAB_EDIT',
+  'TAB_ORGANIZATIONS_READ',
+  'TAB_ORGANIZATIONS_EDIT',
   'TAB_PATIENTS_READ',
   'TAB_PATIENTS_EDIT',
   'TAB_APPOINTMENTS_READ',
@@ -38,7 +38,7 @@ const EDIT_TO_READ: Record<string, string> = {
   TAB_PATIENTS_EDIT: 'TAB_PATIENTS_READ',
   TAB_APPOINTMENTS_EDIT: 'TAB_APPOINTMENTS_READ',
   TAB_STAFF_EDIT: 'TAB_STAFF_READ',
-  TAB_LAB_EDIT: 'TAB_LAB_READ',
+  TAB_ORGANIZATIONS_EDIT: 'TAB_ORGANIZATIONS_READ',
   TAB_TREATMENT_EDIT: 'TAB_TREATMENT_READ',
   TAB_BILLING_EDIT: 'TAB_BILLING_READ',
   TAB_REPORTS_EDIT: 'TAB_REPORTS_READ',

backend/src/modules/appointments/appointments.controller.ts

@@ -0,0 +1,51 @@
+import { Body, Controller, Delete, Get, Param, Post, Query, Req, UseGuards } from '@nestjs/common';
+import { ApiBearerAuth, ApiOperation, ApiTags } from '@nestjs/swagger';
+import { JwtAuthGuard } from '../auth/guards/jwt-auth.guard';
+import { AppointmentsService } from './appointments.service';
+import { CreateAppointmentDto } from './dto/create-appointment.dto';
+import { ListAppointmentsDto } from './dto/list-appointments.dto';
+
+@ApiTags('appointments')
+@ApiBearerAuth('JWT-auth')
+@UseGuards(JwtAuthGuard)
+@Controller('appointments')
+export class AppointmentsController {
+  constructor(private readonly appointmentsService: AppointmentsService) {}
+
+  @Get('column-providers')
+  @ApiOperation({
+    summary:
+      'Staff columns: active non-owner members with TAB_TREATMENT_EDIT. Owners are excluded. Requires TAB_APPOINTMENTS_READ or owner.',
+  })
+  columnProviders(@Req() req: { user: { id: string; organizationId?: string } }) {
+    const organizationId = this.appointmentsService.getOrganizationIdFromUser(req.user);
+    return this.appointmentsService.listColumnProviders(organizationId, req.user.id);
+  }
+
+  @Get()
+  @ApiOperation({ summary: 'List appointments intersecting a time range (requires TAB_APPOINTMENTS_READ or owner)' })
+  list(@Query() query: ListAppointmentsDto, @Req() req: { user: { id: string; organizationId?: string } }) {
+    const organizationId = this.appointmentsService.getOrganizationIdFromUser(req.user);
+    return this.appointmentsService.list(query, organizationId, req.user.id);
+  }
+
+  @Post()
+  @ApiOperation({ summary: 'Create appointment (requires TAB_APPOINTMENTS_EDIT or owner)' })
+  create(
+    @Body() dto: CreateAppointmentDto,
+    @Req() req: { user: { id: string; organizationId?: string } },
+  ) {
+    const organizationId = this.appointmentsService.getOrganizationIdFromUser(req.user);
+    return this.appointmentsService.create(dto, organizationId, req.user.id);
+  }
+
+  @Delete(':id')
+  @ApiOperation({ summary: 'Delete appointment (requires TAB_APPOINTMENTS_EDIT or owner)' })
+  remove(
+    @Param('id') id: string,
+    @Req() req: { user: { id: string; organizationId?: string } },
+  ) {
+    const organizationId = this.appointmentsService.getOrganizationIdFromUser(req.user);
+    return this.appointmentsService.remove(id, organizationId, req.user.id);
+  }
+}

backend/src/modules/appointments/appointments.module.ts

@@ -0,0 +1,10 @@
+import { Module } from '@nestjs/common';
+import { PrismaService } from '../../../prisma/prisma.service';
+import { AppointmentsController } from './appointments.controller';
+import { AppointmentsService } from './appointments.service';
+
+@Module({
+  controllers: [AppointmentsController],
+  providers: [AppointmentsService, PrismaService],
+})
+export class AppointmentsModule {}

backend/src/modules/appointments/appointments.service.ts

@@ -0,0 +1,235 @@
+import {
+  BadRequestException,
+  ForbiddenException,
+  Injectable,
+  NotFoundException,
+} from '@nestjs/common';
+import { PrismaService } from '../../../prisma/prisma.service';
+import { CreateAppointmentDto } from './dto/create-appointment.dto';
+import { ListAppointmentsDto } from './dto/list-appointments.dto';
+
+const MS_PER_DAY = 86_400_000;
+
+@Injectable()
+export class AppointmentsService {
+  constructor(private readonly prisma: PrismaService) {}
+
+  getOrganizationIdFromUser(user: { organizationId?: string }) {
+    if (!user?.organizationId) {
+      throw new BadRequestException('Organization is not selected');
+    }
+    return user.organizationId;
+  }
+
+  async listColumnProviders(organizationId: string, actorUserId: string) {
+    await this.assertCanViewAppointments(actorUserId, organizationId);
+
+    const members = await this.prisma.membership.findMany({
+      where: {
+        organizationId,
+        isOwner: false,
+        isActive: true,
+        permissions: {
+          some: {
+            permission: {
+              name: 'TAB_TREATMENT_EDIT',
+            },
+          },
+        },
+      },
+      include: {
+        user: { select: { id: true, name: true } },
+      },
+      orderBy: [{ createdAt: 'asc' }],
+    });
+
+    const data = members.map((m) => ({ userId: m.user.id, name: m.user.name }));
+
+    return { success: true, data };
+  }
+
+  async list(query: ListAppointmentsDto, organizationId: string, actorUserId: string) {
+    await this.assertCanViewAppointments(actorUserId, organizationId);
+
+    const from = new Date(query.from);
+    const to = new Date(query.to);
+
+    if (Number.isNaN(from.getTime()) || Number.isNaN(to.getTime())) {
+      throw new BadRequestException('Invalid date range');
+    }
+
+    if (to <= from) {
+      throw new BadRequestException('Range "to" must be after "from"');
+    }
+
+    const items = await this.prisma.appointment.findMany({
+      where: {
+        organizationId,
+        startAt: { lt: to },
+        endAt: { gt: from },
+      },
+      include: {
+        patient: {
+          select: { id: true, firstName: true, lastName: true, phone: true },
+        },
+      },
+      orderBy: [{ startAt: 'asc' }],
+    });
+
+    return { success: true, data: items };
+  }
+
+  async create(
+    dto: CreateAppointmentDto,
+    organizationId: string,
+    actorUserId: string,
+  ) {
+    await this.assertCanEditAppointments(actorUserId, organizationId);
+
+    const startAt = new Date(dto.startAt);
+    const endAt = new Date(dto.endAt);
+
+    if (Number.isNaN(startAt.getTime()) || Number.isNaN(endAt.getTime())) {
+      throw new BadRequestException('Invalid start or end time');
+    }
+
+    if (endAt <= startAt) {
+      throw new BadRequestException('End time must be after start time');
+    }
+
+    if (endAt.getTime() - startAt.getTime() > MS_PER_DAY) {
+      throw new BadRequestException('Appointment cannot span more than 24 hours');
+    }
+
+    const now = Date.now();
+    if (startAt.getTime() < now) {
+      throw new BadRequestException('Cannot schedule appointments in the past');
+    }
+
+    await this.ensurePatientInOrg(dto.patientId, organizationId);
+    await this.ensureProviderIsTreatmentEditor(dto.providerUserId, organizationId);
+
+    const overlap = await this.prisma.appointment.findFirst({
+      where: {
+        organizationId,
+        providerUserId: dto.providerUserId,
+        startAt: { lt: endAt },
+        endAt: { gt: startAt },
+      },
+      select: { id: true },
+    });
+
+    if (overlap) {
+      throw new BadRequestException('This time slot overlaps an existing appointment for that provider');
+    }
+
+    const appointment = await this.prisma.appointment.create({
+      data: {
+        organizationId,
+        patientId: dto.patientId,
+        providerUserId: dto.providerUserId,
+        startAt,
+        endAt,
+        purpose: dto.purpose,
+      },
+      include: {
+        patient: {
+          select: { id: true, firstName: true, lastName: true, phone: true },
+        },
+      },
+    });
+
+    return { success: true, data: appointment };
+  }
+
+  async remove(id: string, organizationId: string, actorUserId: string) {
+    await this.assertCanEditAppointments(actorUserId, organizationId);
+
+    const existing = await this.prisma.appointment.findFirst({
+      where: { id, organizationId },
+      select: { id: true },
+    });
+
+    if (!existing) {
+      throw new NotFoundException('Appointment not found');
+    }
+
+    await this.prisma.appointment.delete({
+      where: { id },
+    });
+
+    return { success: true };
+  }
+
+  private async assertCanViewAppointments(userId: string, organizationId: string) {
+    const m = await this.getMembership(userId, organizationId);
+    if (!m) {
+      throw new ForbiddenException('You are not a member of this organization');
+    }
+    if (m.isOwner) {
+      return;
+    }
+    const names = m.permissions.map((p) => p.permission.name);
+    if (names.includes('TAB_APPOINTMENTS_READ')) {
+      return;
+    }
+    if (names.includes('TAB_TREATMENT_EDIT')) {
+      return;
+    }
+    throw new ForbiddenException('You do not have access to appointments');
+  }
+
+  private async assertCanEditAppointments(userId: string, organizationId: string) {
+    const m = await this.getMembership(userId, organizationId);
+    if (!m) {
+      throw new ForbiddenException('You are not a member of this organization');
+    }
+    if (m.isOwner) {
+      return;
+    }
+    const names = m.permissions.map((p) => p.permission.name);
+    if (names.includes('TAB_APPOINTMENTS_EDIT')) {
+      return;
+    }
+    if (names.includes('TAB_TREATMENT_EDIT')) {
+      return;
+    }
+    throw new ForbiddenException('You cannot create or modify appointments');
+  }
+
+  private async ensureProviderIsTreatmentEditor(providerUserId: string, organizationId: string) {
+    const m = await this.getMembership(providerUserId, organizationId);
+    if (!m) {
+      throw new BadRequestException('Provider is not a member of this organization');
+    }
+    if (m.isOwner) {
+      throw new BadRequestException(
+        'Appointments must be assigned to staff with treatment access, not the organization owner',
+      );
+    }
+    if (!m.isActive) {
+      throw new BadRequestException('Provider is not an active staff member');
+    }
+    const names = m.permissions.map((p) => p.permission.name);
+    if (!names.includes('TAB_TREATMENT_EDIT')) {
+      throw new BadRequestException('Provider does not have treatment edit access');
+    }
+  }
+
+  private async ensurePatientInOrg(patientId: string, organizationId: string) {
+    const patient = await this.prisma.patient.findFirst({
+      where: { id: patientId, organizationId },
+      select: { id: true },
+    });
+    if (!patient) {
+      throw new NotFoundException('Patient not found');
+    }
+  }
+
+  private async getMembership(userId: string, organizationId: string) {
+    return this.prisma.membership.findFirst({
+      where: { userId, organizationId },
+      include: { permissions: { include: { permission: true } } },
+    });
+  }
+}

backend/src/modules/appointments/dto/create-appointment.dto.ts

@@ -0,0 +1,28 @@
+import { ApiProperty } from '@nestjs/swagger';
+import { IsDateString, IsIn, IsUUID } from 'class-validator';
+
+const APPOINTMENT_PURPOSES = ['consultation', 'filling', 'endo', 'visit', 'hygiene'] as const;
+
+export type AppointmentPurpose = (typeof APPOINTMENT_PURPOSES)[number];
+
+export class CreateAppointmentDto {
+  @ApiProperty()
+  @IsUUID()
+  patientId: string;
+
+  @ApiProperty({ description: 'Staff user id (column provider)' })
+  @IsUUID()
+  providerUserId: string;
+
+  @ApiProperty({ example: '2026-05-06T09:15:00.000Z' })
+  @IsDateString()
+  startAt: string;
+
+  @ApiProperty({ example: '2026-05-06T09:45:00.000Z' })
+  @IsDateString()
+  endAt: string;
+
+  @ApiProperty({ enum: APPOINTMENT_PURPOSES })
+  @IsIn([...APPOINTMENT_PURPOSES])
+  purpose: AppointmentPurpose;
+}

backend/src/modules/appointments/dto/list-appointments.dto.ts

@@ -0,0 +1,12 @@
+import { ApiProperty } from '@nestjs/swagger';
+import { IsDateString } from 'class-validator';
+
+export class ListAppointmentsDto {
+  @ApiProperty({ description: 'Range start (ISO 8601), e.g. local midnight as instant' })
+  @IsDateString()
+  from: string;
+
+  @ApiProperty({ description: 'Range end (ISO 8601), e.g. next local midnight' })
+  @IsDateString()
+  to: string;
+}

backend/src/modules/auth/auth.service.ts

@@ -20,8 +20,8 @@ const ALL_PERMISSIONS = [
   'TAB_TODAY_EDIT',
   'TAB_STAFF_READ',
   'TAB_STAFF_EDIT',
-  'TAB_LAB_READ',
-  'TAB_LAB_EDIT',
+  'TAB_ORGANIZATIONS_READ',
+  'TAB_ORGANIZATIONS_EDIT',
   'TAB_PATIENTS_READ',
   'TAB_PATIENTS_EDIT',
   'TAB_APPOINTMENTS_READ',
@@ -37,7 +37,7 @@ const ALL_PERMISSIONS = [
 const READ_ONLY_PERMISSIONS = [
   'TAB_TODAY_READ',
   'TAB_STAFF_READ',
-  'TAB_LAB_READ',
+  'TAB_ORGANIZATIONS_READ',
   'TAB_PATIENTS_READ',
   'TAB_APPOINTMENTS_READ',
   'TAB_TREATMENT_READ',

backend/src/modules/organization/dto/accept-organization-invite.dto.ts

@@ -0,0 +1,19 @@
+import { IsString, MinLength } from 'class-validator';
+
+export class AcceptOrganizationInviteDto {
+  @IsString()
+  @MinLength(1)
+  token: string;
+
+  @IsString()
+  @MinLength(1)
+  organizationName: string;
+
+  @IsString()
+  @MinLength(1)
+  ownerName: string;
+
+  @IsString()
+  @MinLength(8)
+  password: string;
+}

backend/src/modules/organization/dto/create-link-request.dto.ts

@@ -0,0 +1,6 @@
+import { IsUUID } from 'class-validator';
+
+export class CreateLinkRequestDto {
+  @IsUUID()
+  targetOrganizationId: string;
+}

backend/src/modules/organization/dto/invite-organization.dto.ts

@@ -0,0 +1,14 @@
+import { IsEmail, IsOptional, IsString, MinLength } from 'class-validator';
+
+export class InviteOrganizationDto {
+  @IsString()
+  @MinLength(1)
+  organizationName: string;
+
+  @IsEmail()
+  ownerEmail: string;
+
+  @IsOptional()
+  @IsString()
+  phone?: string;
+}

backend/src/modules/organization/dto/preview-organization-invite.dto.ts

@@ -0,0 +1,7 @@
+import { IsString, MinLength } from 'class-validator';
+
+export class PreviewOrganizationInviteDto {
+  @IsString()
+  @MinLength(1)
+  token: string;
+}

backend/src/modules/organization/dto/respond-link-request.dto.ts

@@ -0,0 +1,6 @@
+import { IsIn } from 'class-validator';
+
+export class RespondLinkRequestDto {
+  @IsIn(['ACCEPT', 'REJECT'])
+  action: 'ACCEPT' | 'REJECT';
+}

backend/src/modules/organization/organization.controller.ts

@@ -0,0 +1,124 @@
+import {
+  Body,
+  Controller,
+  Delete,
+  Get,
+  Param,
+  Patch,
+  Post,
+  Query,
+  Req,
+  UseGuards,
+} from '@nestjs/common';
+import { ApiBearerAuth, ApiOperation, ApiTags } from '@nestjs/swagger';
+import { JwtAuthGuard } from '../auth/guards/jwt-auth.guard';
+import { AcceptOrganizationInviteDto } from './dto/accept-organization-invite.dto';
+import { CreateLinkRequestDto } from './dto/create-link-request.dto';
+import { InviteOrganizationDto } from './dto/invite-organization.dto';
+import { PreviewOrganizationInviteDto } from './dto/preview-organization-invite.dto';
+import { RespondLinkRequestDto } from './dto/respond-link-request.dto';
+import { OrganizationService } from './organization.service';
+
+@ApiTags('organizations')
+@ApiBearerAuth('JWT-auth')
+@Controller('organizations')
+export class OrganizationController {
+  constructor(private readonly organizationService: OrganizationService) {}
+
+  @Get('invitations/preview')
+  @ApiOperation({ summary: 'Preview organization invite by token (public)' })
+  previewInvite(@Query() query: PreviewOrganizationInviteDto) {
+    return this.organizationService.previewInvite(query.token);
+  }
+
+  @Get('invitations')
+  @UseGuards(JwtAuthGuard)
+  @ApiOperation({ summary: 'List invitation history for current organization' })
+  listInvitations(@Req() req: { user: { id: string; organizationId?: string } }) {
+    const organizationId = this.organizationService.getOrganizationIdFromUser(req.user);
+    return this.organizationService.listInvitationHistory(req.user.id, organizationId);
+  }
+
+  @Post('invitations/accept')
+  @ApiOperation({ summary: 'Accept organization invite and create/link counterpart org (public)' })
+  acceptInvite(@Body() dto: AcceptOrganizationInviteDto) {
+    return this.organizationService.acceptInvite(dto);
+  }
+
+  @Get('search')
+  @UseGuards(JwtAuthGuard)
+  @ApiOperation({
+    summary: 'Search counterpart organizations (active subscription only)',
+  })
+  search(
+    @Req() req: { user: { id: string; organizationId?: string } },
+    @Query('q') q = '',
+  ) {
+    const organizationId = this.organizationService.getOrganizationIdFromUser(req.user);
+    return this.organizationService.searchCounterpartOrganizations(req.user.id, organizationId, q);
+  }
+
+  @Get('links')
+  @UseGuards(JwtAuthGuard)
+  @ApiOperation({ summary: 'List counterpart links and invitations for current org' })
+  list(@Req() req: { user: { id: string; organizationId?: string } }) {
+    const organizationId = this.organizationService.getOrganizationIdFromUser(req.user);
+    return this.organizationService.list(req.user.id, organizationId);
+  }
+
+  @Post('links')
+  @UseGuards(JwtAuthGuard)
+  @ApiOperation({ summary: 'Create pending link request to an existing subscribed counterpart org' })
+  createLinkRequest(
+    @Req() req: { user: { id: string; organizationId?: string } },
+    @Body() dto: CreateLinkRequestDto,
+  ) {
+    const organizationId = this.organizationService.getOrganizationIdFromUser(req.user);
+    return this.organizationService.createLinkRequest(req.user.id, organizationId, dto);
+  }
+
+  @Patch('links/:linkId/respond')
+  @UseGuards(JwtAuthGuard)
+  @ApiOperation({ summary: 'Accept or reject a pending link request for current organization' })
+  respondToLinkRequest(
+    @Req() req: { user: { id: string; organizationId?: string } },
+    @Param('linkId') linkId: string,
+    @Body() dto: RespondLinkRequestDto,
+  ) {
+    const organizationId = this.organizationService.getOrganizationIdFromUser(req.user);
+    return this.organizationService.respondToLinkRequest(req.user.id, organizationId, linkId, dto);
+  }
+
+  @Delete('links/:linkId')
+  @UseGuards(JwtAuthGuard)
+  @ApiOperation({ summary: 'Delete linked organization record' })
+  deleteLink(
+    @Req() req: { user: { id: string; organizationId?: string } },
+    @Param('linkId') linkId: string,
+  ) {
+    const organizationId = this.organizationService.getOrganizationIdFromUser(req.user);
+    return this.organizationService.deleteLink(req.user.id, organizationId, linkId);
+  }
+
+  @Post('invitations/:invitationId/link')
+  @UseGuards(JwtAuthGuard)
+  @ApiOperation({ summary: 'Get a shareable invite link for a pending invitation' })
+  getInvitationLink(
+    @Req() req: { user: { id: string; organizationId?: string } },
+    @Param('invitationId') invitationId: string,
+  ) {
+    const organizationId = this.organizationService.getOrganizationIdFromUser(req.user);
+    return this.organizationService.getInvitationLink(req.user.id, organizationId, invitationId);
+  }
+
+  @Post('invite')
+  @UseGuards(JwtAuthGuard)
+  @ApiOperation({ summary: 'Create invite link for owner of not-yet-subscribed counterpart org' })
+  inviteOrganization(
+    @Req() req: { user: { id: string; organizationId?: string } },
+    @Body() dto: InviteOrganizationDto,
+  ) {
+    const organizationId = this.organizationService.getOrganizationIdFromUser(req.user);
+    return this.organizationService.inviteOrganization(req.user.id, organizationId, dto);
+  }
+}

backend/src/modules/organization/organization.module.ts

@@ -0,0 +1,10 @@
+import { Module } from '@nestjs/common';
+import { PrismaService } from '../../../prisma/prisma.service';
+import { OrganizationController } from './organization.controller';
+import { OrganizationService } from './organization.service';
+
+@Module({
+  controllers: [OrganizationController],
+  providers: [OrganizationService, PrismaService],
+})
+export class OrganizationModule {}

backend/src/modules/organization/organization.service.ts

@@ -0,0 +1,630 @@
+import {
+  BadRequestException,
+  ConflictException,
+  ForbiddenException,
+  Injectable,
+  NotFoundException,
+} from '@nestjs/common';
+import { LinkStatus } from '@prisma/client';
+import * as bcrypt from 'bcrypt';
+import { createHash, randomBytes } from 'crypto';
+import { PrismaService } from '../../../prisma/prisma.service';
+import { AcceptOrganizationInviteDto } from './dto/accept-organization-invite.dto';
+import { CreateLinkRequestDto } from './dto/create-link-request.dto';
+import { InviteOrganizationDto } from './dto/invite-organization.dto';
+import { RespondLinkRequestDto } from './dto/respond-link-request.dto';
+
+@Injectable()
+export class OrganizationService {
+  constructor(private readonly prisma: PrismaService) {}
+
+  getOrganizationIdFromUser(user: { organizationId?: string }) {
+    if (!user?.organizationId) {
+      throw new BadRequestException('Organization is not selected');
+    }
+    return user.organizationId;
+  }
+
+  async searchCounterpartOrganizations(userId: string, organizationId: string, query: string) {
+    const actor = await this.getActorMembership(userId, organizationId);
+    if (!actor || !this.canEditOrganizations(actor)) {
+      throw new ForbiddenException('You do not have permission to manage organizations');
+    }
+
+    const targetType = this.getCounterpartType(actor.organization.type.name);
+    const q = query.trim();
+
+    const organizations = await this.prisma.organization.findMany({
+      where: {
+        type: { name: targetType },
+        planId: { not: null },
+        ...(q
+          ? {
+              OR: [
+                { name: { contains: q, mode: 'insensitive' } },
+                { email: { contains: q, mode: 'insensitive' } },
+                { phone: { contains: q, mode: 'insensitive' } },
+              ],
+            }
+          : {}),
+      },
+      select: {
+        id: true,
+        name: true,
+        email: true,
+        phone: true,
+        owner: { select: { email: true, name: true } },
+      },
+      orderBy: { name: 'asc' },
+      take: 25,
+    });
+
+    return { success: true, data: organizations };
+  }
+
+  async list(userId: string, organizationId: string) {
+    const actor = await this.getActorMembership(userId, organizationId);
+    if (!actor || !this.canEditOrganizations(actor)) {
+      throw new ForbiddenException('You do not have permission to manage organizations');
+    }
+
+    const [linksA, linksB] = await Promise.all([
+      this.prisma.organizationLink.findMany({
+        where: { organizationAId: organizationId },
+        include: {
+          organizationB: { select: { id: true, name: true, email: true, phone: true, type: true } },
+        },
+        orderBy: { createdAt: 'desc' },
+      }),
+      this.prisma.organizationLink.findMany({
+        where: { organizationBId: organizationId },
+        include: {
+          organizationA: { select: { id: true, name: true, email: true, phone: true, type: true } },
+        },
+        orderBy: { createdAt: 'desc' },
+      }),
+    ]);
+
+    const linkItems = [
+      ...linksA.map((l) => ({
+        requestedByOrganizationId: this.getRequesterOrganizationId(l.sharedDataTypes),
+        id: l.id,
+        counterpartOrganizationId: l.organizationB.id,
+        organizationName: l.organizationB.name,
+        ownerEmail: l.organizationB.email,
+        phone: l.organizationB.phone,
+        status: l.status,
+        createdAt: l.createdAt.toISOString(),
+        acceptedAt: l.status === LinkStatus.ACTIVE ? l.updatedAt.toISOString() : null,
+      })),
+      ...linksB.map((l) => ({
+        requestedByOrganizationId: this.getRequesterOrganizationId(l.sharedDataTypes),
+        id: l.id,
+        counterpartOrganizationId: l.organizationA.id,
+        organizationName: l.organizationA.name,
+        ownerEmail: l.organizationA.email,
+        phone: l.organizationA.phone,
+        status: l.status,
+        createdAt: l.createdAt.toISOString(),
+        acceptedAt: l.status === LinkStatus.ACTIVE ? l.updatedAt.toISOString() : null,
+      })),
+    ];
+
+    return {
+      success: true,
+      data: {
+        items: linkItems.sort((a, b) =>
+          a.createdAt < b.createdAt ? 1 : -1,
+        ),
+      },
+    };
+  }
+
+  async listInvitationHistory(userId: string, organizationId: string) {
+    const actor = await this.getActorMembership(userId, organizationId);
+    if (!actor || !this.canEditOrganizations(actor)) {
+      throw new ForbiddenException('You do not have permission to manage organizations');
+    }
+
+    const invitations = await this.prisma.organizationInvitation.findMany({
+      where: { inviterOrganizationId: organizationId },
+      orderBy: { createdAt: 'desc' },
+    });
+
+    return {
+      success: true,
+      data: {
+        items: invitations.map((i) => ({
+          id: i.id,
+          organizationName: i.invitedOrganizationName,
+          ownerEmail: i.invitedOwnerEmail,
+          status: this.mapInvitationStatus(i.acceptedAt, i.revokedAt, i.expiresAt),
+          createdAt: i.createdAt.toISOString(),
+          acceptedAt: i.acceptedAt?.toISOString() ?? null,
+        })),
+      },
+    };
+  }
+
+  async createLinkRequest(userId: string, organizationId: string, dto: CreateLinkRequestDto) {
+    const actor = await this.getActorMembership(userId, organizationId);
+    if (!actor || !this.canEditOrganizations(actor)) {
+      throw new ForbiddenException('You do not have permission to manage organizations');
+    }
+    if (dto.targetOrganizationId === organizationId) {
+      throw new BadRequestException('You cannot link organization to itself');
+    }
+
+    const sourceType = actor.organization.type.name;
+    const targetType = this.getCounterpartType(sourceType);
+    const target = await this.prisma.organization.findUnique({
+      where: { id: dto.targetOrganizationId },
+      select: { id: true, type: true, planId: true },
+    });
+    if (!target) {
+      throw new NotFoundException('Organization not found');
+    }
+    if (target.type.name !== targetType) {
+      throw new BadRequestException(`You can only link to ${targetType} organizations`);
+    }
+    if (!target.planId) {
+      throw new BadRequestException('Target organization does not have an active subscription');
+    }
+
+    const [aId, bId] =
+      organizationId < dto.targetOrganizationId
+        ? [organizationId, dto.targetOrganizationId]
+        : [dto.targetOrganizationId, organizationId];
+
+    const existing = await this.prisma.organizationLink.findUnique({
+      where: { organizationAId_organizationBId: { organizationAId: aId, organizationBId: bId } },
+    });
+    if (existing) {
+      throw new ConflictException('Link already exists for these organizations');
+    }
+
+    const created = await this.prisma.organizationLink.create({
+      data: {
+        organizationAId: aId,
+        organizationBId: bId,
+        status: LinkStatus.PENDING,
+        sharedDataTypes: [`requested_by:${organizationId}`],
+      },
+    });
+
+    return {
+      success: true,
+      data: { id: created.id, status: created.status },
+      message: 'Link request created',
+    };
+  }
+
+  async respondToLinkRequest(
+    userId: string,
+    organizationId: string,
+    linkId: string,
+    dto: RespondLinkRequestDto,
+  ) {
+    const actor = await this.getActorMembership(userId, organizationId);
+    if (!actor || !this.canEditOrganizations(actor)) {
+      throw new ForbiddenException('You do not have permission to manage organizations');
+    }
+
+    const link = await this.prisma.organizationLink.findFirst({
+      where: {
+        id: linkId,
+        OR: [{ organizationAId: organizationId }, { organizationBId: organizationId }],
+      },
+    });
+    if (!link) {
+      throw new NotFoundException('Link request not found');
+    }
+    if (link.status !== LinkStatus.PENDING) {
+      throw new BadRequestException('Only pending link requests can be responded to');
+    }
+
+    const requesterOrgId = this.getRequesterOrganizationId(link.sharedDataTypes);
+    if (requesterOrgId && requesterOrgId === organizationId) {
+      throw new ForbiddenException('You cannot respond to your own link request');
+    }
+
+    const nextStatus = dto.action === 'ACCEPT' ? LinkStatus.ACTIVE : LinkStatus.REJECTED;
+    const updated = await this.prisma.organizationLink.update({
+      where: { id: link.id },
+      data: { status: nextStatus },
+    });
+
+    return {
+      success: true,
+      data: { id: updated.id, status: updated.status },
+      message: nextStatus === LinkStatus.ACTIVE ? 'Link request accepted' : 'Link request rejected',
+    };
+  }
+
+  async deleteLink(userId: string, organizationId: string, linkId: string) {
+    const actor = await this.getActorMembership(userId, organizationId);
+    if (!actor || !this.canEditOrganizations(actor)) {
+      throw new ForbiddenException('You do not have permission to manage organizations');
+    }
+
+    const link = await this.prisma.organizationLink.findFirst({
+      where: {
+        id: linkId,
+        status: LinkStatus.ACTIVE,
+        OR: [{ organizationAId: organizationId }, { organizationBId: organizationId }],
+      },
+      select: { id: true },
+    });
+    if (!link) {
+      throw new NotFoundException('Linked organization not found');
+    }
+
+    await this.prisma.organizationLink.delete({ where: { id: link.id } });
+
+    return {
+      success: true,
+      data: { id: link.id },
+      message: 'Linked organization removed',
+    };
+  }
+
+  async getInvitationLink(userId: string, organizationId: string, invitationId: string) {
+    const actor = await this.getActorMembership(userId, organizationId);
+    if (!actor || !this.canEditOrganizations(actor)) {
+      throw new ForbiddenException('You do not have permission to manage organizations');
+    }
+
+    const invitation = await this.prisma.organizationInvitation.findFirst({
+      where: {
+        id: invitationId,
+        inviterOrganizationId: organizationId,
+      },
+      select: {
+        id: true,
+        acceptedAt: true,
+        revokedAt: true,
+      },
+    });
+    if (!invitation) {
+      throw new NotFoundException('Invitation not found');
+    }
+    if (invitation.acceptedAt || invitation.revokedAt) {
+      throw new BadRequestException('Only pending invitations can provide a link');
+    }
+
+    const plainToken = this.generateInviteToken();
+    const tokenHash = this.hashInviteToken(plainToken);
+    await this.prisma.organizationInvitation.update({
+      where: { id: invitation.id },
+      data: {
+        tokenHash,
+        expiresAt: this.getInviteExpiryDate(),
+      },
+    });
+
+    return {
+      success: true,
+      data: {
+        invitationId: invitation.id,
+        invitationUrl: this.buildInviteUrl(plainToken),
+      },
+    };
+  }
+
+  async inviteOrganization(userId: string, organizationId: string, dto: InviteOrganizationDto) {
+    const actor = await this.getActorMembership(userId, organizationId);
+    if (!actor || !this.canEditOrganizations(actor)) {
+      throw new ForbiddenException('You do not have permission to manage organizations');
+    }
+
+    const ownerEmail = dto.ownerEmail.trim().toLowerCase();
+    const inviterType = actor.organization.type.name;
+    const invitedType = this.getCounterpartType(inviterType);
+    const plainToken = this.generateInviteToken();
+    const tokenHash = this.hashInviteToken(plainToken);
+
+    const existingOwnerWithPlan = await this.prisma.organization.findFirst({
+      where: {
+        owner: { email: ownerEmail },
+        planId: { not: null },
+      },
+      select: { id: true },
+    });
+    if (existingOwnerWithPlan) {
+      throw new BadRequestException(
+        'This owner already has an organization with active subscription. Select that organization from search instead of sending invitation.',
+      );
+    }
+
+    const invitation = await this.prisma.$transaction(async (tx) => {
+      let owner = await tx.user.findUnique({ where: { email: ownerEmail } });
+      if (!owner) {
+        owner = await tx.user.create({
+          data: {
+            email: ownerEmail,
+            name: dto.organizationName.trim(),
+            passwordHash: null,
+          },
+        });
+      }
+
+      let invitedOrg = await tx.organization.findFirst({
+        where: {
+          ownerId: owner.id,
+          type: { name: invitedType },
+        },
+        select: { id: true },
+        orderBy: { createdAt: 'desc' },
+      });
+
+      if (!invitedOrg) {
+        invitedOrg = await tx.organization.create({
+          data: {
+            name: dto.organizationName.trim(),
+            email: `pending-${plainToken.slice(0, 12)}@dyolink.local`,
+            owner: { connect: { id: owner.id } },
+            type: { connect: { name: invitedType } },
+          },
+          select: { id: true },
+        });
+      }
+
+      const [aId, bId] =
+        organizationId < invitedOrg.id
+          ? [organizationId, invitedOrg.id]
+          : [invitedOrg.id, organizationId];
+
+      const existingLink = await tx.organizationLink.findUnique({
+        where: { organizationAId_organizationBId: { organizationAId: aId, organizationBId: bId } },
+      });
+      if (existingLink?.status === LinkStatus.ACTIVE) {
+        throw new ConflictException('These organizations are already linked');
+      }
+
+      await tx.organizationLink.upsert({
+        where: { organizationAId_organizationBId: { organizationAId: aId, organizationBId: bId } },
+        update: {
+          status: LinkStatus.PENDING,
+          sharedDataTypes: [`requested_by:${organizationId}`],
+        },
+        create: {
+          organizationAId: aId,
+          organizationBId: bId,
+          status: LinkStatus.PENDING,
+          sharedDataTypes: [`requested_by:${organizationId}`],
+        },
+      });
+
+      return tx.organizationInvitation.create({
+        data: {
+          inviterOrganizationId: organizationId,
+          inviterUserId: userId,
+          invitedOrganizationId: invitedOrg.id,
+          invitedOrganizationName: dto.organizationName.trim(),
+          invitedOwnerEmail: ownerEmail,
+          invitedOrganizationType: invitedType,
+          tokenHash,
+          expiresAt: this.getInviteExpiryDate(),
+        },
+      });
+    });
+
+    return {
+      success: true,
+      data: {
+        invitationId: invitation.id,
+        invitationUrl: this.buildInviteUrl(plainToken),
+        status: 'PENDING',
+      },
+    };
+  }
+
+  async previewInvite(token: string) {
+    const invitation = await this.findValidInvitation(token);
+    return {
+      success: true,
+      data: {
+        ownerEmail: invitation.invitedOwnerEmail,
+        organizationName: invitation.invitedOrganizationName,
+        organizationType: invitation.invitedOrganizationType,
+        inviterOrganizationName: invitation.inviterOrganization.name,
+        expiresAt: invitation.expiresAt.toISOString(),
+        status: invitation.acceptedAt ? 'ACCEPTED' : 'PENDING',
+      },
+    };
+  }
+
+  async acceptInvite(dto: AcceptOrganizationInviteDto) {
+    const invitation = await this.findValidInvitation(dto.token);
+    if (invitation.acceptedAt) {
+      throw new BadRequestException('This invitation has already been accepted');
+    }
+
+    const organization = await this.prisma.$transaction(async (tx) => {
+      const passwordHash = await bcrypt.hash(dto.password, 10);
+      const ownerEmail = invitation.invitedOwnerEmail;
+
+      let owner = await tx.user.findUnique({ where: { email: ownerEmail } });
+      if (!owner) {
+        owner = await tx.user.create({
+          data: {
+            email: ownerEmail,
+            name: dto.ownerName.trim(),
+            passwordHash,
+            trialUsedAt: new Date(),
+          },
+        });
+      } else if (!owner.passwordHash) {
+        owner = await tx.user.update({
+          where: { id: owner.id },
+          data: { passwordHash, name: dto.ownerName.trim(), trialUsedAt: owner.trialUsedAt ?? new Date() },
+        });
+      }
+
+      let targetOrganizationId = invitation.invitedOrganizationId;
+      if (targetOrganizationId) {
+        await tx.organization.update({
+          where: { id: targetOrganizationId },
+          data: {
+            name: dto.organizationName.trim(),
+            email: ownerEmail,
+            owner: { connect: { id: owner.id } },
+            plan: { connect: { name: 'trial' } },
+          },
+        });
+      } else {
+        const createdOrg = await tx.organization.create({
+          data: {
+            name: dto.organizationName.trim(),
+            email: ownerEmail,
+            owner: { connect: { id: owner.id } },
+            type: { connect: { name: invitation.invitedOrganizationType } },
+            plan: { connect: { name: 'trial' } },
+          },
+        });
+        targetOrganizationId = createdOrg.id;
+      }
+
+      const ownerMembership = await tx.membership.findFirst({
+        where: { userId: owner.id, organizationId: targetOrganizationId },
+        select: { id: true },
+      });
+      if (!ownerMembership) {
+        await tx.membership.create({
+          data: {
+            userId: owner.id,
+            organizationId: targetOrganizationId,
+            isOwner: true,
+            isActive: true,
+          },
+        });
+      }
+
+      const [aId, bId] =
+        invitation.inviterOrganizationId < targetOrganizationId
+          ? [invitation.inviterOrganizationId, targetOrganizationId]
+          : [targetOrganizationId, invitation.inviterOrganizationId];
+
+      await tx.organizationLink.upsert({
+        where: { organizationAId_organizationBId: { organizationAId: aId, organizationBId: bId } },
+        update: { status: LinkStatus.ACTIVE },
+        create: {
+          organizationAId: aId,
+          organizationBId: bId,
+          status: LinkStatus.ACTIVE,
+          sharedDataTypes: [],
+        },
+      });
+
+      await tx.organizationInvitation.update({
+        where: { id: invitation.id },
+        data: {
+          acceptedAt: new Date(),
+          invitedOrganizationId: targetOrganizationId,
+          invitedOrganizationName: dto.organizationName.trim(),
+        },
+      });
+
+      return targetOrganizationId;
+    });
+
+    return {
+      success: true,
+      data: { organizationId: organization },
+      message: 'Invitation accepted. Organization trial has started and link is active.',
+    };
+  }
+
+  private async getActorMembership(userId: string, organizationId: string) {
+    return this.prisma.membership.findFirst({
+      where: { userId, organizationId },
+      include: {
+        organization: {
+          select: {
+            id: true,
+            type: true,
+          },
+        },
+        permissions: { include: { permission: true } },
+      },
+    });
+  }
+
+  private canEditOrganizations(m: {
+    isOwner: boolean;
+    permissions: { permission: { name: string } }[];
+  }): boolean {
+    if (m.isOwner) return true;
+    return m.permissions.some((p) => p.permission.name === 'TAB_ORGANIZATIONS_EDIT');
+  }
+
+  private getCounterpartType(orgType: string): 'CLINIC' | 'LAB' {
+    if (orgType === 'CLINIC') return 'LAB';
+    if (orgType === 'LAB') return 'CLINIC';
+    throw new BadRequestException('Unknown organization type');
+  }
+
+  private mapInvitationStatus(
+    acceptedAt: Date | null,
+    revokedAt: Date | null,
+    expiresAt: Date,
+  ): LinkStatus | 'EXPIRED' {
+    if (acceptedAt) return LinkStatus.ACTIVE;
+    if (revokedAt) return LinkStatus.REJECTED;
+    return expiresAt.getTime() > Date.now() ? LinkStatus.PENDING : 'EXPIRED';
+  }
+
+  private generateInviteToken(): string {
+    return randomBytes(32).toString('hex');
+  }
+
+  private hashInviteToken(token: string): string {
+    return createHash('sha256').update(token).digest('hex');
+  }
+
+  private getInviteExpiryDate(): Date {
+    const d = new Date();
+    d.setDate(d.getDate() + 7);
+    return d;
+  }
+
+  private buildInviteUrl(token: string): string {
+    const appUrl = process.env.FRONTEND_URL || 'http://localhost:3001';
+    return `${appUrl}/accept-organization-invite?token=${encodeURIComponent(token)}`;
+  }
+
+  private buildInviteUrlFromTokenHashPlaceholder(): null {
+    // Raw token cannot be reconstructed from hash, so pending links are preserved client-side after creation.
+    return null;
+  }
+
+  private getRequesterOrganizationId(sharedDataTypes: unknown): string | null {
+    if (!Array.isArray(sharedDataTypes)) return null;
+    for (const v of sharedDataTypes) {
+      if (typeof v !== 'string') continue;
+      if (!v.startsWith('requested_by:')) continue;
+      const id = v.slice('requested_by:'.length).trim();
+      if (id) return id;
+    }
+    return null;
+  }
+
+  private async findValidInvitation(token: string) {
+    const invitation = await this.prisma.organizationInvitation.findUnique({
+      where: { tokenHash: this.hashInviteToken(token) },
+      include: {
+        inviterOrganization: { select: { id: true, name: true } },
+      },
+    });
+    if (!invitation) {
+      throw new NotFoundException('Invitation not found');
+    }
+    if (invitation.revokedAt) {
+      throw new BadRequestException('Invitation has been revoked');
+    }
+    if (invitation.expiresAt.getTime() <= Date.now()) {
+      throw new BadRequestException('Invitation has expired');
+    }
+    return invitation;
+  }
+}

frontend/src/app/(dashboard)/appointments/page.tsx

@@ -1,10 +1,349 @@
+'use client';
+
+import { useCallback, useEffect, useMemo, useRef, useState } from 'react';
+import { appointmentsApi } from '@/lib/api/appointments';
+import { patientsApi } from '@/lib/api/patients';
+import { useAuth } from '@/lib/hooks/useAuth';
+import { canEditAppointments, hasPermission } from '@/shared/permissions';
+import type { AppointmentColumnProvider, AppointmentRecord } from '@/types/appointment';
+import type { CreatePatientInput, Patient } from '@/types/patient';
+import { CreatePatientModal } from '@/components/ui/patient/CreatePatientModal';
+import { PatientSummaryCard } from '@/components/ui/patient/PatientSummaryCard';
+import { AppointmentBookingModal } from '@/components/ui/appointments/AppointmentBookingModal';
+import { AppointmentScheduleGrid } from '@/components/ui/appointments/AppointmentScheduleGrid';
+import { AppointmentsPatientSearch } from '@/components/ui/appointments/AppointmentsPatientSearch';
+import { AppointmentScheduleLegend } from '@/components/ui/appointments/AppointmentScheduleLegend';
+import { ScheduleDayPicker } from '@/components/ui/common/ScheduleDayPicker';
+import type { AppointmentPurpose } from '@/types/appointment';
+import { formatApiErrorMessage } from '@/lib/formatApiError';
+import { getLocalDayIsoRange, startOfLocalDay } from '@/lib/appointmentTime';
+
+const EMPTY_PATIENT_FORM: CreatePatientInput = {
+  firstName: '',
+  lastName: '',
+  phone: '',
+  email: '',
+};
+
 export default function AppointmentsPage() {
+  const { currentOrganization } = useAuth();
+  const [scheduleDate, setScheduleDate] = useState(() => startOfLocalDay(new Date()));
+
+  const [providers, setProviders] = useState<AppointmentColumnProvider[]>([]);
+  const [appointments, setAppointments] = useState<AppointmentRecord[]>([]);
+  const [loadingSchedule, setLoadingSchedule] = useState(false);
+  const [scheduleError, setScheduleError] = useState('');
+
+  const [search, setSearch] = useState('');
+  const [patients, setPatients] = useState<Patient[]>([]);
+  const [selectedPatient, setSelectedPatient] = useState<Patient | undefined>();
+  const [loadingPatients, setLoadingPatients] = useState(false);
+
+  const [isCreateOpen, setIsCreateOpen] = useState(false);
+  const [savingPatient, setSavingPatient] = useState(false);
+  const [patientForm, setPatientForm] = useState<CreatePatientInput>(EMPTY_PATIENT_FORM);
+
+  const [bookingOpen, setBookingOpen] = useState(false);
+  const [bookingHour, setBookingHour] = useState(9);
+  const [bookingProviderId, setBookingProviderId] = useState<string | null>(null);
+  const [bookingProviderName, setBookingProviderName] = useState('');
+  const [savingAppointment, setSavingAppointment] = useState(false);
+
+  const [toastError, setToastError] = useState('');
+  const [toastSuccess, setToastSuccess] = useState('');
+  const [toastInfo, setToastInfo] = useState('');
+
+  const canManageAppointments = canEditAppointments(currentOrganization);
+  const canEditPatients = hasPermission(currentOrganization, 'TAB_PATIENTS_EDIT');
+
+  const todayStart = useMemo(() => startOfLocalDay(new Date()), []);
+
+  const scheduleLoadGen = useRef(0);
+
+  const sortedPatients = useMemo(
+    () =>
+      [...patients].sort((a, b) =>
+        `${a.firstName} ${a.lastName}`.localeCompare(`${b.firstName} ${b.lastName}`),
+      ),
+    [patients],
+  );
+
+  const loadSchedule = useCallback(async () => {
+    if (!currentOrganization?.id) {
+      return;
+    }
+    const gen = ++scheduleLoadGen.current;
+    setLoadingSchedule(true);
+    setScheduleError('');
+    try {
+      const range = getLocalDayIsoRange(scheduleDate);
+      const [pRes, aRes] = await Promise.all([
+        appointmentsApi.columnProviders(),
+        appointmentsApi.list(range),
+      ]);
+      if (gen !== scheduleLoadGen.current) {
+        return;
+      }
+      setProviders(pRes.data);
+      setAppointments(aRes.data);
+    } catch (err: unknown) {
+      if (gen !== scheduleLoadGen.current) {
+        return;
+      }
+      setScheduleError(formatApiErrorMessage(err, 'Failed to load schedule.'));
+    } finally {
+      if (gen === scheduleLoadGen.current) {
+        setLoadingSchedule(false);
+      }
+    }
+  }, [currentOrganization?.id, scheduleDate]);
+
+  useEffect(() => {
+    void loadSchedule();
+  }, [loadSchedule]);
+
+  useEffect(() => {
+    const t = setTimeout(() => {
+      void loadPatientsSearch(search);
+    }, 300);
+    return () => clearTimeout(t);
+  }, [search]);
+
+  async function loadPatientsSearch(q: string) {
+    if (!currentOrganization) {
+      return;
+    }
+    setLoadingPatients(true);
+    try {
+      const response = await patientsApi.list({ q, page: 1, limit: 25 });
+      const items = response.data.items;
+      setPatients(items);
+      if (selectedPatient) {
+        const stillThere = items.find((p) => p.id === selectedPatient.id);
+        if (stillThere) {
+          setSelectedPatient(stillThere);
+        }
+      }
+    } catch {
+      setPatients([]);
+    } finally {
+      setLoadingPatients(false);
+    }
+  }
+
+  async function handleCreatePatient() {
+    setSavingPatient(true);
+    setToastError('');
+    setToastSuccess('');
+    try {
+      const response = await patientsApi.create(patientForm);
+      setIsCreateOpen(false);
+      setPatientForm(EMPTY_PATIENT_FORM);
+      await loadPatientsSearch(search);
+      setSelectedPatient(response.data);
+      setToastSuccess(`Patient ${response.data.firstName} ${response.data.lastName} was saved.`);
+    } catch (err: unknown) {
+      const message =
+        err && typeof err === 'object' && 'message' in err
+          ? String((err as { message: unknown }).message)
+          : 'Failed to save patient.';
+      setToastError(message);
+    } finally {
+      setSavingPatient(false);
+    }
+  }
+
+  function handleSlotClick(hour: number, providerUserId: string, providerName: string) {
+    if (!selectedPatient) {
+      setToastSuccess('');
+      setToastError('');
+      setToastInfo('Select a patient before booking.');
+      return;
+    }
+    setBookingHour(hour);
+    setBookingProviderId(providerUserId);
+    setBookingProviderName(providerName);
+    setBookingOpen(true);
+  }
+
+  async function handleSaveAppointment(payload: {
+    patientId: string;
+    providerUserId: string;
+    startAt: string;
+    endAt: string;
+    purpose: AppointmentPurpose;
+  }) {
+    setSavingAppointment(true);
+    setToastError('');
+    setToastSuccess('');
+    setToastInfo('');
+    try {
+      await appointmentsApi.create(payload);
+      setBookingOpen(false);
+      setToastSuccess('Appointment saved.');
+      await loadSchedule();
+    } catch (err: unknown) {
+      const message =
+        err && typeof err === 'object' && 'message' in err
+          ? String((err as { message: unknown }).message)
+          : 'Could not save appointment.';
+      setToastError(message);
+    } finally {
+      setSavingAppointment(false);
+    }
+  }
+
+  async function handleDeleteAppointment(id: string) {
+    if (!window.confirm('Remove this appointment?')) {
+      return;
+    }
+    setToastError('');
+    setToastSuccess('');
+    setToastInfo('');
+    try {
+      await appointmentsApi.remove(id);
+      setToastSuccess('Appointment removed.');
+      await loadSchedule();
+    } catch (err: unknown) {
+      const message =
+        err && typeof err === 'object' && 'message' in err
+          ? String((err as { message: unknown }).message)
+          : 'Could not delete appointment.';
+      setToastError(message);
+    }
+  }
+
+  useEffect(() => {
+    if (!toastSuccess) {
+      return;
+    }
+    const id = setTimeout(() => setToastSuccess(''), 3200);
+    return () => clearTimeout(id);
+  }, [toastSuccess]);
+
+  useEffect(() => {
+    if (!toastError) {
+      return;
+    }
+    const id = setTimeout(() => setToastError(''), 4000);
+    return () => clearTimeout(id);
+  }, [toastError]);
+
+  useEffect(() => {
+    if (!toastInfo) {
+      return;
+    }
+    const id = setTimeout(() => setToastInfo(''), 4000);
+    return () => clearTimeout(id);
+  }, [toastInfo]);
+
   return (
-    <div className="space-y-3">
-      <h1 className="text-2xl font-semibold text-text-primary">Appointments</h1>
-      <p className="text-sm text-text-secondary">
-        Appointments module is coming soon.
-      </p>
+    <div className="relative space-y-6 pb-24">
+      <div className="grid grid-cols-1 xl:grid-cols-3 gap-6">
+        <div className="xl:col-span-1 space-y-4">
+          <div className="flex flex-col gap-1">
+            <h1 className="text-2xl font-semibold text-text-primary">Appointments</h1>
+            <p className="text-sm text-text-secondary">
+              Search a patient, pick a date, then click a time slot under a provider to book.
+            </p>
+          </div>
+
+          <AppointmentsPatientSearch
+            search={search}
+            onSearchChange={setSearch}
+            patients={sortedPatients}
+            selectedPatientId={selectedPatient?.id}
+            onSelectPatient={setSelectedPatient}
+            loading={loadingPatients}
+            canAddPatient={canEditPatients}
+            onAddPatient={() => {
+              if (!canEditPatients) {
+                return;
+              }
+              setIsCreateOpen(true);
+            }}
+          />
+          <PatientSummaryCard patient={selectedPatient} />
+        </div>
+
+        <div className="xl:col-span-2 space-y-4">
+          <AppointmentScheduleLegend />
+
+          <div className="flex flex-col sm:flex-row sm:items-end gap-4 sm:justify-between">
+            <ScheduleDayPicker
+              value={scheduleDate}
+              minDate={todayStart}
+              onChange={(d) => setScheduleDate(startOfLocalDay(d))}
+            />
+            {loadingSchedule && (
+              <p className="text-sm text-text-muted pb-2">Loading schedule…</p>
+            )}
+          </div>
+
+          {scheduleError && (
+            <div className="rounded-[var(--radius-sm)] border border-red-500/50 bg-red-500/10 px-3 py-2 text-sm text-red-300">
+              {scheduleError}
+            </div>
+          )}
+
+          <AppointmentScheduleGrid
+            day={scheduleDate}
+            providers={providers}
+            appointments={appointments}
+            canBook={canManageAppointments}
+            canDelete={canManageAppointments}
+            onDeleteAppointment={(id) => void handleDeleteAppointment(id)}
+            onSlotClick={(hour, uid, name) => handleSlotClick(hour, uid, name)}
+          />
+        </div>
+      </div>
+
+      <AppointmentBookingModal
+        open={bookingOpen}
+        scheduleDate={scheduleDate}
+        patient={selectedPatient}
+        providerUserId={bookingProviderId}
+        providerName={bookingProviderName}
+        initialHour={bookingHour}
+        onClose={() => setBookingOpen(false)}
+        onSubmit={handleSaveAppointment}
+        loading={savingAppointment}
+      />
+
+      {isCreateOpen && (
+        <div className="fixed inset-0 z-[60] flex items-center justify-center p-4 bg-black/55">
+          <CreatePatientModal
+            isOpen={isCreateOpen}
+            formData={patientForm}
+            onChange={(patch) => setPatientForm((prev) => ({ ...prev, ...patch }))}
+            onSubmit={() => void handleCreatePatient()}
+            onClose={() => setIsCreateOpen(false)}
+            loading={savingPatient}
+          />
+        </div>
+      )}
+
+      {(toastError || toastSuccess || toastInfo) && (
+        <div className="fixed bottom-4 left-4 right-4 z-[70] flex justify-center pointer-events-none">
+          <div className="pointer-events-auto w-full max-w-lg space-y-2">
+            {toastError && (
+              <div className="rounded-[var(--radius-sm)] border border-red-500/50 bg-red-500/10 px-3 py-2 text-sm text-red-300 shadow-lg">
+                {toastError}
+              </div>
+            )}
+            {toastInfo && (
+              <div className="rounded-[var(--radius-sm)] border border-amber-500/45 bg-amber-500/10 px-3 py-2 text-sm text-amber-100 shadow-lg">
+                {toastInfo}
+              </div>
+            )}
+            {toastSuccess && (
+              <div className="rounded-[var(--radius-sm)] border border-emerald-500/50 bg-emerald-500/10 px-3 py-2 text-sm text-emerald-300 shadow-lg">
+                {toastSuccess}
+              </div>
+            )}
+          </div>
+        </div>
+      )}
     </div>
   );
 }

frontend/src/app/(dashboard)/billing/page.tsx

@@ -1,10 +1,11 @@
 // src/app/(dashboard)/billing/page.tsx
 'use client';
 import { useState } from 'react';
-import { Search, Filter, Plus } from 'lucide-react';
+import { Pencil } from 'lucide-react';
 import { Button } from '@/components/ui/common/Button';
-import { Input } from '@/components/ui/common/Input';
 import { Badge } from '@/components/ui/common/Badge';
+import { Table } from '@/components/ui/common/Table';
+import { SearchBar } from '@/components/ui/common/SearchBar';
 import { useAuth } from '@/lib/hooks/useAuth';
 import { hasPermission } from '@/shared/permissions';
 // Mock data matching your design
@@ -44,11 +45,9 @@ export default function BillingPage() {
                 <h1 className="text-2xl font-semibold text-text-primary">Billing</h1>
                 <Button
                     variant="primary"
-                    className="flex items-center gap-2"
                     disabled={!canEditBilling}
                     title={!canEditBilling ? 'Read-only access for this organization.' : undefined}
                 >
-                    <Plus className="h-4 w-4 icon-flat" />
                     New Invoice
                 </Button>
             </div>
@@ -80,17 +79,12 @@ export default function BillingPage() {
                 />
             </div>
             {/* Filters */}
-            <div className="surface-card p-4">
-                <div className="flex gap-4 items-center">
-                    <div className="flex-1">
-                        <Input
-                            placeholder="Search patients..."
-                            value={search}
-                            onChange={(e) => setSearch(e.target.value)}
-                            icon={<Search className="h-4 w-4 icon-flat" />}
-                        />
-                    </div>
-                    <div className="flex gap-2">
+            <SearchBar
+                value={search}
+                onChange={setSearch}
+                placeholder="Search patients..."
+                actions={(
+                    <>
                         {['all', 'paid', 'unpaid', 'overdue'].map((status) => (
                             <button
                                 key={status}
@@ -103,14 +97,13 @@ export default function BillingPage() {
                                 {status}
                             </button>
                         ))}
-                    </div>
-                </div>
-            </div>
+                    </>
+                )}
+            />
             {/* Invoices Table - Matching your design */}
-            <div className="surface-card overflow-hidden">
-                <table className="w-full">
-                    <thead className="bg-background-secondary/70 border-b border-border">
-                        <tr>
+            <Table
+                headers={
+                    <tr>
                             <th className="px-6 py-3 text-left text-xs font-medium text-text-muted uppercase tracking-wider">
                                 Invoice ID
                             </th>
@@ -129,36 +122,37 @@ export default function BillingPage() {
                             <th className="px-6 py-3 text-left text-xs font-medium text-text-muted uppercase tracking-wider">
                                 Paid
                             </th>
-                            <th className="px-6 py-3 text-left text-xs font-medium text-text-muted uppercase tracking-wider">
+                            <th className="px-6 py-3 text-center text-xs font-medium text-text-muted uppercase tracking-wider">
                                 Status
                             </th>
                             <th className="px-6 py-3 text-left text-xs font-medium text-text-muted uppercase tracking-wider">
                                 Action
                             </th>
                         </tr>
-                    </thead>
-                    <tbody className="divide-y divide-border/60">
+                }
+                body={
+                    <>
                         {invoices.map((invoice) => (
-                            <tr key={invoice.id} className="hover:bg-background-secondary/45">
-                                <td className="px-6 py-4 text-sm font-medium text-text-primary">
+                        <tr key={invoice.id} className="hover:bg-background-secondary/45">
+                                <td className="px-6 py-1.5 text-sm font-medium text-text-primary">
                                     {invoice.id}
                                 </td>
-                                <td className="px-6 py-4 text-sm text-text-primary">
+                                <td className="px-6 py-1.5 text-sm text-text-primary">
                                     {invoice.patient}
                                 </td>
-                                <td className="px-6 py-4 text-sm text-text-secondary">
+                                <td className="px-6 py-1.5 text-sm text-text-secondary">
                                     {invoice.date}
                                 </td>
-                                <td className="px-6 py-4 text-sm text-text-primary">
+                                <td className="px-6 py-1.5 text-sm text-text-primary">
                                     {invoice.service}
                                 </td>
-                                <td className="px-6 py-4 text-sm text-text-primary">
+                                <td className="px-6 py-1.5 text-sm text-text-primary">
                                     ${invoice.amount}
                                 </td>
-                                <td className="px-6 py-4 text-sm text-text-primary">
+                                <td className="px-6 py-1.5 text-sm text-text-primary">
                                     ${invoice.paid}
                                 </td>
-                                <td className="px-6 py-4">
+                                <td className="px-6 py-1.5 text-center align-middle">
                                     <Badge
                                         variant={statusColors[invoice.status as keyof typeof statusColors]}
                                         className="capitalize"
@@ -166,21 +160,24 @@ export default function BillingPage() {
                                         {invoice.status}
                                     </Badge>
                                 </td>
-                                <td className="px-6 py-4">
+                                <td className="px-6 py-1.5">
                                     <button
-                                        className={`text-sm ${canEditBilling ? 'text-primary hover:opacity-90' : 'text-text-muted cursor-not-allowed'}`}
+                                        className={`p-2 rounded-md ${canEditBilling
+                                            ? 'text-text-secondary hover:bg-background-card/80 hover:text-text-primary'
+                                            : 'text-text-muted cursor-not-allowed opacity-50'}`}
                                         disabled={!canEditBilling}
                                         title={!canEditBilling ? 'Read-only access for this organization.' : undefined}
+                                        aria-label="Edit invoice"
                                     >
-                                        Edit
+                                        <Pencil className="w-4 h-4" />
                                     </button>
                                 </td>
-                            </tr>
+                        </tr>
                         ))}
-                    </tbody>
-                </table>
-                {/* Pagination - Matching your design */}
-                <div className="px-6 py-4 border-t border-border/60 flex justify-between items-center bg-background-secondary/70">
+                    </>
+                }
+                footer={(
+                    <>
                     <button className="text-sm text-text-secondary hover:text-text-primary">
                         ← Previous
                     </button>
@@ -190,8 +187,9 @@ export default function BillingPage() {
                     <button className="text-sm text-text-secondary hover:text-text-primary">
                         Next →
                     </button>
-                </div>
-            </div>
+                    </>
+                )}
+            />
         </div>
     );
 }

frontend/src/app/(dashboard)/lab/page.tsx

@@ -1,10 +0,0 @@
-export default function LabPage() {
-  return (
-    <div className="space-y-3">
-      <h1 className="text-2xl font-semibold text-text-primary">Lab Management</h1>
-      <p className="text-sm text-text-secondary">
-        Lab management module is coming soon.
-      </p>
-    </div>
-  );
-}

frontend/src/app/(dashboard)/layout.tsx

@@ -7,6 +7,7 @@ import Sidebar from '@/components/ui/common/Sidebar';
 import { ThemeToggle } from '@/components/ui/common/ThemeToggle';
 import { DashboardAccountMenu } from '@/components/ui/dashboard/DashboardAccountMenu';
 import {
+  canAccessAppointmentsSection,
   firstAccessibleDashboardPath,
   getRequiredReadPermissionForPath,
   hasPermission,
@@ -32,8 +33,14 @@ export default function DashboardLayout({ children }: { children: React.ReactNod
     }
 
     const required = getRequiredReadPermissionForPath(pathname);
-    if (required && !hasPermission(currentOrganization, required)) {
-      router.replace(firstAccessibleDashboardPath(currentOrganization));
+    if (required) {
+      const allowed =
+        hasPermission(currentOrganization, required) ||
+        (required === 'TAB_APPOINTMENTS_READ' &&
+          canAccessAppointmentsSection(currentOrganization));
+      if (!allowed) {
+        router.replace(firstAccessibleDashboardPath(currentOrganization));
+      }
     }
   }, [isAuthReady, user, currentOrganization, router, pathname]);
 

frontend/src/app/(dashboard)/organizations/page.tsx

@@ -0,0 +1,602 @@
+'use client';
+
+import { useEffect, useState } from 'react';
+import { Check, Copy, Link2, Trash2, X } from 'lucide-react';
+import { useAuth } from '@/lib/hooks/useAuth';
+import {
+  organizationApi,
+  type CounterpartItemDto,
+  type CounterpartSearchResultDto,
+  type OrganizationInvitationHistoryItemDto,
+} from '@/lib/api/organization';
+import { Button } from '@/components/ui/common/Button';
+import { Badge, organizationLinkStatusVariant } from '@/components/ui/common/Badge';
+import { Input } from '@/components/ui/common/Input';
+import { SearchBar } from '@/components/ui/common/SearchBar';
+import { Table } from '@/components/ui/common/Table';
+import type { ApiError } from '@/types/api';
+
+type StoredInviteLink = {
+  invitationId: string;
+  ownerEmail: string;
+  invitationUrl: string;
+};
+
+function inviteLinksStorageKey(orgId: string): string {
+  return `counterpartInviteLinks:${orgId}`;
+}
+
+function readStoredInviteLinks(orgId: string): Record<string, StoredInviteLink> {
+  if (typeof window === 'undefined') return {};
+  try {
+    const raw = window.localStorage.getItem(inviteLinksStorageKey(orgId));
+    if (!raw) return {};
+    const parsed = JSON.parse(raw) as Record<string, StoredInviteLink>;
+    return parsed && typeof parsed === 'object' ? parsed : {};
+  } catch {
+    return {};
+  }
+}
+
+function writeStoredInviteLinks(orgId: string, links: Record<string, StoredInviteLink>) {
+  if (typeof window === 'undefined') return;
+  window.localStorage.setItem(inviteLinksStorageKey(orgId), JSON.stringify(links));
+}
+
+function formatOrganizationStatusLabel(status: string): string {
+  if (!status) return status;
+  const lower = status.toLowerCase();
+  return lower.charAt(0).toUpperCase() + lower.slice(1);
+}
+
+function formatLinkStatusLabel(status: CounterpartItemDto['status']): string {
+  if (status === 'PENDING') return 'Link request pending';
+  if (status === 'ACTIVE') return 'Linked';
+  if (status === 'REJECTED') return 'Link request rejected';
+  return formatOrganizationStatusLabel(status);
+}
+
+function formatInvitationStatusLabel(status: OrganizationInvitationHistoryItemDto['status']): string {
+  if (status === 'PENDING') return 'Invitation pending';
+  if (status === 'ACTIVE') return 'Invitation Accepted';
+  if (status === 'REJECTED') return 'Invitation rejected';
+  return formatOrganizationStatusLabel(status);
+}
+
+function formatApiMessage(err: unknown): string {
+  if (!err || typeof err !== 'object') return 'Something went wrong';
+  const m = (err as ApiError).message;
+  if (Array.isArray(m)) return m.join(', ');
+  if (typeof m === 'string') return m;
+  return 'Something went wrong';
+}
+
+function formatTableDate(value: string): string {
+  const d = new Date(value);
+  if (Number.isNaN(d.getTime())) return '—';
+  return d.toLocaleDateString();
+}
+
+type TableMode = 'existing' | 'search';
+
+export default function OrganizationsPage() {
+  const { currentOrganization } = useAuth();
+  const [loading, setLoading] = useState(true);
+  const [error, setError] = useState('');
+  const [success, setSuccess] = useState('');
+
+  const [query, setQuery] = useState('');
+  const [mode, setMode] = useState<TableMode>('existing');
+  const [searching, setSearching] = useState(false);
+  const [searchResults, setSearchResults] = useState<CounterpartSearchResultDto[]>([]);
+  const [requestLinkRowId, setRequestLinkRowId] = useState<string | null>(null);
+  const [deleteLinkRowId, setDeleteLinkRowId] = useState<string | null>(null);
+
+  const [items, setItems] = useState<CounterpartItemDto[]>([]);
+  const [manualOrganizationName, setManualOrganizationName] = useState('');
+  const [manualOwnerEmail, setManualOwnerEmail] = useState('');
+  const [inviteLoading, setInviteLoading] = useState(false);
+  const [copiedId, setCopiedId] = useState<string | null>(null);
+  const [pendingInviteLinks, setPendingInviteLinks] = useState<Record<string, StoredInviteLink>>({});
+  const [showInviteForm, setShowInviteForm] = useState(false);
+  const [historyOpen, setHistoryOpen] = useState(false);
+  const [historyLoading, setHistoryLoading] = useState(false);
+  const [historyItems, setHistoryItems] = useState<OrganizationInvitationHistoryItemDto[]>([]);
+
+  const counterpartLabel = currentOrganization?.type === 'LAB' ? 'Clinic' : 'Lab';
+  const tabLabel = currentOrganization?.type === 'LAB' ? 'Clinics' : 'Labs';
+
+  const existingRows = items;
+
+  async function loadList() {
+    setLoading(true);
+    setError('');
+    try {
+      const res = await organizationApi.list();
+      setItems(res.data.items);
+    } catch (e) {
+      setError(formatApiMessage(e));
+    } finally {
+      setLoading(false);
+    }
+  }
+
+  useEffect(() => {
+    if (!currentOrganization?.id) return;
+    setPendingInviteLinks(readStoredInviteLinks(currentOrganization.id));
+  }, [currentOrganization?.id]);
+
+  useEffect(() => {
+    void loadList();
+  }, []);
+
+  useEffect(() => {
+    if (!success) return;
+    const t = setTimeout(() => setSuccess(''), 4000);
+    return () => clearTimeout(t);
+  }, [success]);
+
+  async function runSearch() {
+    const q = query.trim();
+    if (!q) {
+      setMode('existing');
+      setSearchResults([]);
+      setShowInviteForm(false);
+      return;
+    }
+
+    setSearching(true);
+    setError('');
+    setMode('search');
+    setShowInviteForm(false);
+    try {
+      const res = await organizationApi.search(q);
+      setSearchResults(res.data);
+    } catch (e) {
+      setError(formatApiMessage(e));
+      setSearchResults([]);
+    } finally {
+      setSearching(false);
+    }
+  }
+
+  async function submitRequestLink(targetOrganizationId: string) {
+    setRequestLinkRowId(targetOrganizationId);
+    setError('');
+    try {
+      await organizationApi.createLink(targetOrganizationId);
+      setSuccess(`${counterpartLabel} link request sent`);
+      setSearchResults([]);
+      setQuery('');
+      setMode('existing');
+      await loadList();
+    } catch (e) {
+      setError(formatApiMessage(e));
+    } finally {
+      setRequestLinkRowId(null);
+    }
+  }
+
+  async function sendInvite() {
+    setInviteLoading(true);
+    setError('');
+    try {
+      const res = await organizationApi.invite({
+        organizationName: manualOrganizationName.trim(),
+        ownerEmail: manualOwnerEmail.trim(),
+      });
+      if (currentOrganization?.id) {
+        const nextLinks = {
+          ...pendingInviteLinks,
+          [res.data.invitationId]: {
+            invitationId: res.data.invitationId,
+            ownerEmail: manualOwnerEmail.trim().toLowerCase(),
+            invitationUrl: res.data.invitationUrl,
+          },
+        };
+        setPendingInviteLinks(nextLinks);
+        writeStoredInviteLinks(currentOrganization.id, nextLinks);
+      }
+      setSuccess(`Invitation link created for ${manualOwnerEmail.trim()}`);
+      setManualOrganizationName('');
+      setManualOwnerEmail('');
+      setShowInviteForm(false);
+      setMode('existing');
+      setQuery('');
+      setSearchResults([]);
+      await loadList();
+    } catch (e) {
+      setError(formatApiMessage(e));
+    } finally {
+      setInviteLoading(false);
+    }
+  }
+
+  async function openInvitationHistory() {
+    setHistoryOpen(true);
+    setHistoryLoading(true);
+    setError('');
+    try {
+      const res = await organizationApi.listInvitations();
+      setHistoryItems(res.data.items);
+    } catch (e) {
+      setError(formatApiMessage(e));
+    } finally {
+      setHistoryLoading(false);
+    }
+  }
+
+  async function respondToPendingLink(linkId: string, action: 'ACCEPT' | 'REJECT') {
+    setRequestLinkRowId(linkId);
+    setError('');
+    try {
+      await organizationApi.respondLink(linkId, action);
+      setSuccess(action === 'ACCEPT' ? 'Link request accepted' : 'Link request rejected');
+      await loadList();
+    } catch (e) {
+      setError(formatApiMessage(e));
+    } finally {
+      setRequestLinkRowId(null);
+    }
+  }
+
+  async function deleteLinkedOrganization(linkId: string) {
+    setDeleteLinkRowId(linkId);
+    setError('');
+    try {
+      await organizationApi.deleteLink(linkId);
+      setSuccess('Linked organization removed');
+      await loadList();
+    } catch (e) {
+      setError(formatApiMessage(e));
+    } finally {
+      setDeleteLinkRowId(null);
+    }
+  }
+
+  async function copyInvitationLink(invitationId: string) {
+    setError('');
+    try {
+      let invitationUrl = pendingInviteLinks[invitationId]?.invitationUrl;
+      if (!invitationUrl) {
+        const res = await organizationApi.getInvitationLink(invitationId);
+        invitationUrl = res.data.invitationUrl;
+        if (currentOrganization?.id) {
+          const nextLinks = {
+            ...pendingInviteLinks,
+            [invitationId]: {
+              invitationId,
+              ownerEmail:
+                historyItems.find((item) => item.id === invitationId)?.ownerEmail?.toLowerCase() ?? '',
+              invitationUrl,
+            },
+          };
+          setPendingInviteLinks(nextLinks);
+          writeStoredInviteLinks(currentOrganization.id, nextLinks);
+        }
+      }
+      await navigator.clipboard.writeText(invitationUrl);
+      setCopiedId(invitationId);
+      setTimeout(() => setCopiedId(null), 1500);
+    } catch {
+      setError('Could not copy invitation link');
+    }
+  }
+
+  function clearSearchView() {
+    setMode('existing');
+    setQuery('');
+    setSearchResults([]);
+    setShowInviteForm(false);
+  }
+
+  if (!currentOrganization) {
+    return <p className="text-sm text-text-secondary">Loading organization...</p>;
+  }
+
+  return (
+    <div className="space-y-6">
+      <div className="flex flex-col gap-1 sm:flex-row sm:items-start sm:justify-between">
+        <div>
+          <h1 className="text-2xl font-semibold text-text-primary">{tabLabel}</h1>
+          <p className="text-sm text-text-secondary mt-1">
+            Search organizations and send link requests or invitation links in one place.
+          </p>
+        </div>
+        <Button type="button" size="sm" onClick={() => void openInvitationHistory()}>
+          Invitation History
+        </Button>
+      </div>
+
+      {error && (
+        <div className="rounded-[var(--radius-md)] border border-red-500/40 bg-red-500/10 px-4 py-3 text-sm text-red-700 dark:text-red-300">
+          {error}
+        </div>
+      )}
+      {success && (
+        <div className="rounded-[var(--radius-md)] border border-primary/30 bg-primary-soft/40 px-4 py-3 text-sm text-text-primary">
+          {success}
+        </div>
+      )}
+
+      <SearchBar
+        value={query}
+        onChange={setQuery}
+        onSubmit={() => void runSearch()}
+        placeholder={`Search ${counterpartLabel.toLowerCase()} by name, email, or phone...`}
+        actions={
+          <>
+            <button
+              type="button"
+              onClick={() => void runSearch()}
+              disabled={searching}
+              className="px-4 py-2 rounded-[var(--radius-sm)] text-sm font-medium border bg-primary-soft text-primary border-primary/50 disabled:opacity-60"
+            >
+              Search
+            </button>
+            {mode === 'search' && (
+              <button
+                type="button"
+                onClick={clearSearchView}
+                className="px-4 py-2 rounded-[var(--radius-sm)] text-sm font-medium border text-text-secondary border-border/40 hover:bg-background-card/70 hover:border-border"
+              >
+                Back to list
+              </button>
+            )}
+          </>
+        }
+      />
+
+      <Table
+        headers={
+            <tr>
+              <th className="px-6 py-3 text-left text-xs font-medium text-text-muted uppercase tracking-wider">
+                Organization
+              </th>
+              <th className="px-6 py-3 text-left text-xs font-medium text-text-muted uppercase tracking-wider">
+                Owner email
+              </th>
+              <th className="px-6 py-3 text-left text-xs font-medium text-text-muted uppercase tracking-wider">
+                Date
+              </th>
+              <th className="px-6 py-3 text-center text-xs font-medium text-text-muted uppercase tracking-wider">
+                Status
+              </th>
+              <th className="px-6 py-3 text-right text-xs font-medium text-text-muted uppercase tracking-wider">
+                Action
+              </th>
+            </tr>
+        }
+        body={
+          <>
+            {loading ? (
+              <tr>
+                <td colSpan={5} className="px-6 py-8 text-sm text-text-secondary">
+                  Loading...
+                </td>
+              </tr>
+            ) : mode === 'existing' ? (
+              existingRows.length === 0 ? (
+                <tr>
+                  <td colSpan={5} className="px-6 py-8 text-sm text-text-secondary">
+                    No organizations linked or pending yet. Use search to find and connect.
+                  </td>
+                </tr>
+              ) : (
+                existingRows.map((row) => {
+                  const canRespond =
+                    row.status === 'PENDING' &&
+                    row.requestedByOrganizationId !== null &&
+                    row.requestedByOrganizationId !== currentOrganization.id;
+
+                  return (
+                    <tr key={row.id} className="hover:bg-background-secondary/45">
+                      <td className="px-6 py-1.5 text-sm font-medium text-text-primary">
+                        {row.organizationName}
+                      </td>
+                      <td className="px-6 py-1.5 text-sm text-text-secondary">{row.ownerEmail}</td>
+                      <td className="px-6 py-1.5 text-sm text-text-secondary">
+                        {formatTableDate(row.createdAt)}
+                      </td>
+                      <td className="px-6 py-1.5 text-center align-middle">
+                        <Badge variant={organizationLinkStatusVariant(row.status)} fixedWidth={false}>
+                          {formatLinkStatusLabel(row.status)}
+                        </Badge>
+                      </td>
+                      <td className="px-6 py-1.5 text-right">
+                        <div className="inline-flex items-center gap-2">
+                          {canRespond && (
+                            <>
+                              <button
+                                type="button"
+                                className="p-2 rounded-md text-text-secondary hover:bg-background-card/80 hover:text-text-primary disabled:text-text-muted disabled:opacity-50"
+                                disabled={requestLinkRowId !== null && requestLinkRowId !== row.id}
+                                onClick={() => void respondToPendingLink(row.id, 'ACCEPT')}
+                                aria-label="Accept link request"
+                                title="Accept link request"
+                              >
+                                <Check className="w-4 h-4" />
+                              </button>
+                              <button
+                                type="button"
+                                className="p-2 rounded-md text-text-secondary hover:bg-red-500/15 hover:text-red-600 disabled:text-text-muted disabled:opacity-50"
+                                disabled={requestLinkRowId !== null && requestLinkRowId !== row.id}
+                                onClick={() => void respondToPendingLink(row.id, 'REJECT')}
+                                aria-label="Reject link request"
+                                title="Reject link request"
+                              >
+                                <X className="w-4 h-4" />
+                              </button>
+                            </>
+                          )}
+                          {row.status === 'ACTIVE' && (
+                            <button
+                              type="button"
+                              className="p-2 rounded-md text-text-secondary hover:bg-red-500/15 hover:text-red-600 disabled:text-text-muted disabled:opacity-50"
+                              disabled={deleteLinkRowId !== null && deleteLinkRowId !== row.id}
+                              onClick={() => void deleteLinkedOrganization(row.id)}
+                              aria-label="Delete link"
+                              title="Delete link"
+                            >
+                              <Trash2 className="w-4 h-4" />
+                            </button>
+                          )}
+                        </div>
+                      </td>
+                    </tr>
+                  );
+                })
+              )
+            ) : searchResults.length > 0 ? (
+              searchResults.map((r) => (
+                <tr key={r.id} className="hover:bg-background-secondary/45">
+                  <td className="px-6 py-1.5 text-sm font-medium text-text-primary">{r.name}</td>
+                  <td className="px-6 py-1.5 text-sm text-text-secondary">{r.owner.email}</td>
+                  <td className="px-6 py-1.5 text-sm text-text-secondary">Today</td>
+                  <td className="px-6 py-1.5 text-center align-middle">
+                    <Badge variant="default" fixedWidth={false}>Found</Badge>
+                  </td>
+                  <td className="px-6 py-1.5 text-right">
+                    <button
+                      type="button"
+                      className="p-2 rounded-md text-text-secondary hover:bg-background-card/80 hover:text-text-primary disabled:text-text-muted disabled:opacity-50"
+                      disabled={requestLinkRowId !== null && requestLinkRowId !== r.id}
+                      onClick={() => void submitRequestLink(r.id)}
+                      aria-label="Send link request"
+                      title="Send link request"
+                    >
+                      <Link2 className="w-4 h-4" />
+                    </button>
+                  </td>
+                </tr>
+              ))
+            ) : (
+              <tr>
+                <td colSpan={5} className="px-6 py-6">
+                  <div className="flex flex-col gap-3">
+                    <p className="text-sm text-text-secondary">
+                      No organization found in directory search.
+                    </p>
+                    <div className="flex flex-wrap items-center gap-2">
+                      <Button type="button" onClick={() => setShowInviteForm((v) => !v)}>
+                        {showInviteForm ? 'Hide invitation fields' : 'Send invitation link'}
+                      </Button>
+                    </div>
+                    {showInviteForm && (
+                      <div className="grid gap-3 sm:grid-cols-3 mt-1">
+                        <Input
+                          label={`${counterpartLabel} name`}
+                          value={manualOrganizationName}
+                          onChange={(e) => setManualOrganizationName(e.target.value)}
+                        />
+                        <Input
+                          label="Owner email"
+                          type="email"
+                          value={manualOwnerEmail}
+                          onChange={(e) => setManualOwnerEmail(e.target.value)}
+                        />
+                        <div className="flex items-end">
+                          <Button
+                            type="button"
+                            isLoading={inviteLoading}
+                            disabled={!manualOrganizationName.trim() || !manualOwnerEmail.trim()}
+                            onClick={() => void sendInvite()}
+                            className="w-full"
+                          >
+                            Send invitation
+                          </Button>
+                        </div>
+                      </div>
+                    )}
+                  </div>
+                </td>
+              </tr>
+            )}
+          </>
+        }
+      />
+
+      {historyOpen && (
+        <div className="fixed inset-0 z-50 flex items-center justify-center p-4 bg-black/50">
+          <div
+            className="w-full max-w-3xl max-h-[90vh] overflow-y-auto rounded-[var(--radius-md)] border border-border bg-background-secondary p-6 shadow-xl space-y-4"
+            role="dialog"
+            aria-modal="true"
+          >
+            <div className="flex items-center justify-between">
+              <h2 className="text-lg font-semibold text-text-primary">Invitation History</h2>
+              <Button type="button" size="sm" onClick={() => setHistoryOpen(false)}>
+                Close
+              </Button>
+            </div>
+
+            {historyLoading ? (
+              <p className="text-sm text-text-secondary">Loading invitation history...</p>
+            ) : historyItems.length === 0 ? (
+              <p className="text-sm text-text-secondary">No invitations yet.</p>
+            ) : (
+              <Table
+                headers={
+                  <tr>
+                    <th className="px-6 py-3 text-left text-xs font-medium text-text-muted uppercase tracking-wider">
+                      Organization
+                    </th>
+                    <th className="px-6 py-3 text-left text-xs font-medium text-text-muted uppercase tracking-wider">
+                      Owner email
+                    </th>
+                    <th className="px-6 py-3 text-left text-xs font-medium text-text-muted uppercase tracking-wider">
+                      Date
+                    </th>
+                    <th className="px-6 py-3 text-center text-xs font-medium text-text-muted uppercase tracking-wider">
+                      Status
+                    </th>
+                    <th className="px-6 py-3 text-right text-xs font-medium text-text-muted uppercase tracking-wider">
+                      Action
+                    </th>
+                  </tr>
+                }
+                body={
+                  <>
+                    {historyItems.map((inv) => (
+                      <tr key={inv.id} className="hover:bg-background-secondary/45">
+                        <td className="px-6 py-1.5 text-sm text-text-primary">{inv.organizationName}</td>
+                        <td className="px-6 py-1.5 text-sm text-text-secondary">{inv.ownerEmail}</td>
+                        <td className="px-6 py-1.5 text-sm text-text-secondary">
+                          {formatTableDate(inv.createdAt)}
+                        </td>
+                        <td className="px-6 py-1.5 text-center align-middle">
+                          <Badge variant={organizationLinkStatusVariant(inv.status)} fixedWidth={false}>
+                            {formatInvitationStatusLabel(inv.status)}
+                          </Badge>
+                        </td>
+                        <td className="px-6 py-1.5 text-right">
+                          {inv.status === 'PENDING' ? (
+                            <button
+                              type="button"
+                              className="p-2 rounded-md text-text-secondary hover:bg-background-card/80 hover:text-text-primary"
+                              onClick={() => void copyInvitationLink(inv.id)}
+                              aria-label="Copy invitation link"
+                              title="Copy invitation link"
+                            >
+                              {copiedId === inv.id ? (
+                                <Check className="w-4 h-4" />
+                              ) : (
+                                <Copy className="w-4 h-4" />
+                              )}
+                            </button>
+                          ) : (
+                            <span className="text-xs text-text-muted">—</span>
+                          )}
+                        </td>
+                      </tr>
+                    ))}
+                  </>
+                }
+              />
+            )}
+          </div>
+        </div>
+      )}
+    </div>
+  );
+}

frontend/src/app/(dashboard)/patients/page.tsx

@@ -1,7 +1,6 @@
 'use client';
 
 import { useEffect, useMemo, useState } from 'react';
-import { Plus } from 'lucide-react';
 import { Button } from '@/components/ui/common/Button';
 import { patientsApi } from '@/lib/api/patients';
 import { useAuth } from '@/lib/hooks/useAuth';
@@ -160,7 +159,6 @@ export default function PatientsPage() {
         <h1 className="text-2xl font-semibold text-text-primary">Patients</h1>
         <Button
           variant="primary"
-          className="flex items-center gap-2"
           disabled={!canEditPatients}
           onClick={() => {
             if (!canEditPatients) return;
@@ -168,7 +166,6 @@ export default function PatientsPage() {
           }}
           title={!canEditPatients ? 'Read-only access for this organization.' : undefined}
         >
-          <Plus className="h-4 w-4 icon-flat" />
           New Patient
         </Button>
       </div>

frontend/src/app/(dashboard)/settings/subscriptions/page.tsx

@@ -5,6 +5,7 @@ import Link from 'next/link';
 import { useRouter } from 'next/navigation';
 import { useAuth } from '@/lib/hooks/useAuth';
 import { authApi } from '@/lib/api/auth';
+import { Button } from '@/components/ui/common/Button';
 import type { SubscriptionAlertData } from '@/types/subscription';
 
 const PLAN_OPTIONS = [
@@ -176,9 +177,9 @@ export default function SubscriptionsSettingsPage() {
               );
             })}
           </div>
-          <button
+          <Button
             type="button"
-            className="inline-flex items-center justify-center rounded-[var(--radius-md)] bg-primary px-4 py-2 text-sm font-medium text-white hover:opacity-90 disabled:opacity-60"
+            variant="primary"
             onClick={() => {
               const selectedPlanLabel = selectedPlan?.name ?? 'the selected plan';
               setPurchaseNotice(
@@ -187,7 +188,7 @@ export default function SubscriptionsSettingsPage() {
             }}
           >
             Start purchase process
-          </button>
+          </Button>
           {purchaseNotice && (
             <div className="rounded-[var(--radius-md)] border border-emerald-500/30 bg-emerald-500/10 px-4 py-3">
               <p className="text-sm text-emerald-200">{purchaseNotice}</p>

frontend/src/app/(dashboard)/staff/page.tsx

@@ -15,13 +15,15 @@ import {
   resolveStaffFeatureLabel,
   formatAccessSummary,
   type FeaturePermState,
-} from './staff-permission-form';
-import { UserPlus, Pencil, Trash2, Copy, Check, X, Clock3 } from 'lucide-react';
+} from '../../../components/staff/staff-permission-form';
+import { Pencil, Trash2, Copy, Check, X } from 'lucide-react';
 import { useAuth } from '@/lib/hooks/useAuth';
 import { staffApi, type StaffMemberDto } from '@/lib/api/staff';
 import { Button } from '@/components/ui/common/Button';
+import { Badge } from '@/components/ui/common/Badge';
 import { Input } from '@/components/ui/common/Input';
 import { Checkbox } from '@/components/ui/common/Checkbox';
+import { Table } from '@/components/ui/common/Table';
 import type { ApiError } from '@/types/api';
 
 type StoredInviteLink = {
@@ -335,7 +337,6 @@ export default function StaffPage() {
           className="shrink-0"
           title={!canEdit ? 'Read-only access for this organization.' : undefined}
         >
-          <UserPlus className="w-4 h-4 mr-2" />
           Invite member
         </Button>
       </div>
@@ -410,14 +411,7 @@ export default function StaffPage() {
                     }
                   }}
                 >
-                  {copiedInviteMembershipId === lastInviteInfo.membershipId ? (
-                    <Check className="w-4 h-4" />
-                  ) : (
-                    <Copy className="w-4 h-4" />
-                  )}
-                  <span className="ml-1">
-                    {copiedInviteMembershipId === lastInviteInfo.membershipId ? 'Copied' : 'Copy link'}
-                  </span>
+                  {copiedInviteMembershipId === lastInviteInfo.membershipId ? 'Copied' : 'Copy link'}
                 </Button>
               </div>
               <p className="text-xs text-text-muted">
@@ -431,47 +425,40 @@ export default function StaffPage() {
       {loading ? (
         <p className="text-sm text-text-secondary">Loading team…</p>
       ) : (
-        <div className="overflow-x-auto rounded-[var(--radius-md)] border border-border/70">
-          <table className="w-full text-sm">
-            <thead>
-              <tr className="border-b border-border/70 text-left text-text-secondary">
-                <th className="p-3 font-medium">Name</th>
-                <th className="p-3 font-medium">Email</th>
-                <th className="p-3 font-medium">Role</th>
-                <th className="p-3 font-medium">Status</th>
-                <th className="p-3 font-medium">Access</th>
-                <th className="p-3 font-medium w-28">Actions</th>
-              </tr>
-            </thead>
-            <tbody>
+        <Table
+          headers={
+            <tr>
+              <th className="px-6 py-3 text-left text-xs font-medium text-text-muted uppercase tracking-wider">Name</th>
+              <th className="px-6 py-3 text-left text-xs font-medium text-text-muted uppercase tracking-wider">Email</th>
+              <th className="px-6 py-3 text-left text-xs font-medium text-text-muted uppercase tracking-wider">Role</th>
+              <th className="px-6 py-3 text-center text-xs font-medium text-text-muted uppercase tracking-wider">Status</th>
+              <th className="px-6 py-3 text-left text-xs font-medium text-text-muted uppercase tracking-wider">Access</th>
+              <th className="px-6 py-3 text-right text-xs font-medium text-text-muted uppercase tracking-wider w-28">Actions</th>
+            </tr>
+          }
+          body={
+            <>
               {members.map((m) => (
-                <tr key={m.id} className="h-14 border-b border-border/40 last:border-0">
-                  <td className="p-3 text-text-primary">{m.name}</td>
-                  <td className="p-3 text-text-secondary">{m.email}</td>
-                  <td className="p-3">
+                <tr key={m.id} className="hover:bg-background-secondary/45">
+                  <td className="px-6 py-1.5 text-sm text-text-primary">{m.name}</td>
+                  <td className="px-6 py-1.5 text-sm text-text-secondary">{m.email}</td>
+                  <td className="px-6 py-1.5 text-sm">
                     {m.isOwner ? (
                       <span className="text-primary font-medium">Owner</span>
                     ) : (
                       <span className="text-text-secondary">Staff</span>
                     )}
                   </td>
-                  <td className="p-3 align-middle">
+                  <td className="px-6 py-1.5 align-middle text-center">
                     {m.isOwner || m.invitationStatus === 'ACTIVE' ? (
-                      <span className="inline-flex items-center rounded-full border border-emerald-600/40 bg-emerald-600/15 px-2 py-0.5 text-xs text-emerald-400">
-                        Active
-                      </span>
+                      <Badge variant="success">Active</Badge>
                     ) : m.invitationStatus === 'PENDING' ? (
-                      <span className="inline-flex items-center gap-1 rounded-full border border-amber-500/40 bg-amber-500/15 px-2 py-0.5 text-xs text-amber-300">
-                        <Clock3 className="h-3 w-3" />
-                        Pending
-                      </span>
+                      <Badge variant="warning">Pending</Badge>
                     ) : (
-                      <span className="inline-flex items-center rounded-full border border-red-500/40 bg-red-500/15 px-2 py-0.5 text-xs text-red-300">
-                        Expired
-                      </span>
+                      <Badge variant="danger">Expired</Badge>
                     )}
                   </td>
-                  <td className="p-3 text-text-secondary max-w-md">
+                  <td className="px-6 py-1.5 text-sm text-text-secondary max-w-md">
                     {m.isOwner ? (
                       <span className="text-text-muted">All features</span>
                     ) : (
@@ -480,7 +467,7 @@ export default function StaffPage() {
                       </span>
                     )}
                   </td>
-                  <td className="p-3 align-middle">
+                  <td className="px-6 py-1.5 align-middle">
                     {!m.isOwner && (
                       <div className="flex min-h-[36px] items-center justify-end gap-1">
                         {m.invitationStatus === 'PENDING' && pendingInviteLinks[m.id]?.invitationUrl && (
@@ -543,9 +530,9 @@ export default function StaffPage() {
                   </td>
                 </tr>
               ))}
-            </tbody>
-          </table>
-        </div>
+            </>
+          }
+        />
       )}
 
       {inviteOpen && (

frontend/src/app/(dashboard)/treatment/page.tsx

@@ -1,10 +1,18 @@
+'use client';
+
+import { TreatmentWorkspace } from '@/components/ui/treatment/TreatmentWorkspace';
+import { useAuth } from '@/lib/hooks/useAuth';
+
 export default function TreatmentPage() {
+  const { user, currentOrganization, isAuthReady } = useAuth();
+
+  if (!isAuthReady || !user) {
+    return (
+      <div className="text-sm text-text-muted">Loading…</div>
+    );
+  }
+
   return (
-    <div className="space-y-3">
-      <h1 className="text-2xl font-semibold text-text-primary">Treatment</h1>
-      <p className="text-sm text-text-secondary">
-        Treatment module is coming soon.
-      </p>
-    </div>
+    <TreatmentWorkspace userId={user.id} currentOrganization={currentOrganization} />
   );
 }

frontend/src/app/(public)/accept-invite/page.tsx

@@ -78,7 +78,7 @@ function AcceptInviteContent() {
         name: name.trim(),
         password,
       });
-      setSuccess('Invitation accepted. Redirecting to login...');
+      setSuccess('Invitation Accepted. Redirecting to login...');
       setTimeout(() => {
         router.replace('/login');
       }, 1000);

frontend/src/app/(public)/accept-organization-invite/page.tsx

@@ -0,0 +1,159 @@
+'use client';
+
+import { Suspense, useEffect, useMemo, useState } from 'react';
+import Link from 'next/link';
+import { useRouter, useSearchParams } from 'next/navigation';
+import { Button } from '@/components/ui/common/Button';
+import { Input } from '@/components/ui/common/Input';
+import { organizationApi } from '@/lib/api/organization';
+
+function AcceptOrganizationInviteContent() {
+  const params = useSearchParams();
+  const router = useRouter();
+  const token = useMemo(() => params.get('token') || '', [params]);
+
+  const [loading, setLoading] = useState(true);
+  const [submitting, setSubmitting] = useState(false);
+  const [error, setError] = useState('');
+  const [success, setSuccess] = useState('');
+  const [inviteInfo, setInviteInfo] = useState<{
+    ownerEmail: string;
+    organizationName: string;
+    organizationType: 'CLINIC' | 'LAB';
+    inviterOrganizationName: string;
+    expiresAt: string;
+    status: 'PENDING' | 'ACCEPTED';
+  } | null>(null);
+
+  const [ownerName, setOwnerName] = useState('');
+  const [organizationName, setOrganizationName] = useState('');
+  const [password, setPassword] = useState('');
+  const [confirmPassword, setConfirmPassword] = useState('');
+
+  useEffect(() => {
+    if (!token) {
+      setLoading(false);
+      setError('Invalid invitation link');
+      return;
+    }
+
+    void (async () => {
+      setLoading(true);
+      setError('');
+      try {
+        const res = await organizationApi.previewInvite(token);
+        setInviteInfo(res.data);
+        setOrganizationName(res.data.organizationName || '');
+        if (res.data.status === 'ACCEPTED') {
+          setSuccess('This invitation is already accepted. You can log in now.');
+        }
+      } catch (e: any) {
+        setError(e?.message || 'Could not load invitation');
+      } finally {
+        setLoading(false);
+      }
+    })();
+  }, [token]);
+
+  async function onAccept() {
+    if (!token) return;
+    setError('');
+    setSuccess('');
+    if (!ownerName.trim()) return setError('Owner name is required');
+    if (!organizationName.trim()) return setError('Organization name is required');
+    if (password.length < 8) return setError('Password must be at least 8 characters');
+    if (password !== confirmPassword) return setError('Passwords do not match');
+
+    setSubmitting(true);
+    try {
+      await organizationApi.acceptInvite({
+        token,
+        ownerName: ownerName.trim(),
+        organizationName: organizationName.trim(),
+        password,
+      });
+      setSuccess('Invitation Accepted. Redirecting to login...');
+      setTimeout(() => router.replace('/login'), 1000);
+    } catch (e: any) {
+      setError(e?.message || 'Could not accept invitation');
+    } finally {
+      setSubmitting(false);
+    }
+  }
+
+  return (
+    <div className="min-h-screen app-web-bg flex items-center justify-center p-4">
+      <div className="w-full max-w-md surface-card p-6 space-y-5">
+        <h1 className="text-xl font-semibold text-text-primary">Accept organization invitation</h1>
+        {loading ? (
+          <p className="text-sm text-text-secondary">Loading invitation...</p>
+        ) : (
+          <>
+            {inviteInfo && (
+              <div className="rounded-[var(--radius-md)] border border-border/70 bg-background-secondary/70 px-3 py-2 text-sm text-text-secondary space-y-1">
+                <p>
+                  Invited by: <span className="text-text-primary">{inviteInfo.inviterOrganizationName}</span>
+                </p>
+                <p>
+                  Owner email: <span className="text-text-primary">{inviteInfo.ownerEmail}</span>
+                </p>
+              </div>
+            )}
+            {error && (
+              <div className="rounded-[var(--radius-md)] border border-red-500/40 bg-red-500/10 px-3 py-2 text-sm text-red-300">
+                {error}
+              </div>
+            )}
+            {success && (
+              <div className="rounded-[var(--radius-md)] border border-primary/30 bg-primary-soft/40 px-3 py-2 text-sm text-text-primary">
+                {success}
+              </div>
+            )}
+            {inviteInfo?.status !== 'ACCEPTED' && (
+              <div className="space-y-3">
+                <Input label="Owner name" value={ownerName} onChange={(e) => setOwnerName(e.target.value)} />
+                <Input
+                  label="Organization name"
+                  value={organizationName}
+                  onChange={(e) => setOrganizationName(e.target.value)}
+                />
+                <Input
+                  label="Create password"
+                  type="password"
+                  value={password}
+                  onChange={(e) => setPassword(e.target.value)}
+                />
+                <Input
+                  label="Confirm password"
+                  type="password"
+                  value={confirmPassword}
+                  onChange={(e) => setConfirmPassword(e.target.value)}
+                />
+                <Button type="button" fullWidth isLoading={submitting} onClick={() => void onAccept()}>
+                  Activate organization
+                </Button>
+              </div>
+            )}
+            <p className="text-xs text-text-muted">
+              Already have access? <Link href="/login" className="text-primary">Go to login</Link>
+            </p>
+          </>
+        )}
+      </div>
+    </div>
+  );
+}
+
+export default function AcceptOrganizationInvitePage() {
+  return (
+    <Suspense
+      fallback={
+        <div className="min-h-screen app-web-bg flex items-center justify-center">
+          <p className="text-sm text-text-secondary">Loading invitation...</p>
+        </div>
+      }
+    >
+      <AcceptOrganizationInviteContent />
+    </Suspense>
+  );
+}

frontend/src/components/staff/staff-permission-form.ts

@@ -6,7 +6,7 @@
 export const STAFF_FEATURE_GROUPS = [
   { label: 'Today', read: 'TAB_TODAY_READ', edit: 'TAB_TODAY_EDIT' },
   { label: 'Staff', read: 'TAB_STAFF_READ', edit: 'TAB_STAFF_EDIT' },
-  { label: 'Labs', read: 'TAB_LAB_READ', edit: 'TAB_LAB_EDIT' },
+  { label: 'Organizations', read: 'TAB_ORGANIZATIONS_READ', edit: 'TAB_ORGANIZATIONS_EDIT' },
   { label: 'Patients', read: 'TAB_PATIENTS_READ', edit: 'TAB_PATIENTS_EDIT' },
   { label: 'Appointment', read: 'TAB_APPOINTMENTS_READ', edit: 'TAB_APPOINTMENTS_EDIT' },
   { label: 'Treatment', read: 'TAB_TREATMENT_READ', edit: 'TAB_TREATMENT_EDIT' },
@@ -21,7 +21,7 @@ export function resolveStaffFeatureLabel(
   group: (typeof STAFF_FEATURE_GROUPS)[number],
   organizationType: OrgType,
 ): string {
-  if (group.read === 'TAB_LAB_READ') {
+  if (group.read === 'TAB_ORGANIZATIONS_READ') {
     return organizationType === 'LAB' ? 'Clinics' : 'Labs';
   }
   return group.label;

frontend/src/components/staff/staffPermissions.ts

@@ -2,7 +2,11 @@
 export const STAFF_FEATURE_GROUPS = [
   { label: 'Today', read: 'TAB_TODAY_READ', edit: 'TAB_TODAY_EDIT' },
   { label: 'Staff', read: 'TAB_STAFF_READ', edit: 'TAB_STAFF_EDIT' },
-  { label: 'Labs / Clinics', read: 'TAB_LAB_READ', edit: 'TAB_LAB_EDIT' },
+  {
+    label: 'Organizations',
+    read: 'TAB_ORGANIZATIONS_READ',
+    edit: 'TAB_ORGANIZATIONS_EDIT',
+  },
   { label: 'Patients', read: 'TAB_PATIENTS_READ', edit: 'TAB_PATIENTS_EDIT' },
   { label: 'Appointment', read: 'TAB_APPOINTMENTS_READ', edit: 'TAB_APPOINTMENTS_EDIT' },
   { label: 'Treatment', read: 'TAB_TREATMENT_READ', edit: 'TAB_TREATMENT_EDIT' },

frontend/src/components/treatment/fdiToothMeta.ts

@@ -0,0 +1,24 @@
+import type { FdiToothId } from '@/types/treatment';
+
+/** Upper arch: distal → mesial on each side (full occlusal layout left → right) */
+export const FDI_UPPER_LEFT_TO_RIGHT: FdiToothId[] = [
+  '18', '17', '16', '15', '14', '13', '12', '11',
+  '21', '22', '23', '24', '25', '26', '27', '28',
+];
+
+/** Lower arch */
+export const FDI_LOWER_LEFT_TO_RIGHT: FdiToothId[] = [
+  '48', '47', '46', '45', '44', '43', '42', '41',
+  '31', '32', '33', '34', '35', '36', '37', '38',
+];
+
+export type ToothShapeKind = 'incisor' | 'canine' | 'premolar' | 'molar';
+
+/** Infer cartoon shape from FDI (last digit encodes tooth type within quadrant). */
+export function getToothShapeKind(fdi: FdiToothId): ToothShapeKind {
+  const n = Number(fdi.slice(1));
+  if (n <= 2) return 'incisor';
+  if (n === 3) return 'canine';
+  if (n <= 5) return 'premolar';
+  return 'molar';
+}

frontend/src/components/ui/appointments/AppointmentBookingModal.tsx

@@ -0,0 +1,220 @@
+'use client';
+
+import { useEffect, useState } from 'react';
+import { X } from 'lucide-react';
+import { Button } from '@/components/ui/common/Button';
+import { Dropdown } from '@/components/ui/common/Dropdown';
+import type { AppointmentPurpose } from '@/types/appointment';
+import { APPOINTMENT_PURPOSE_LABEL } from '@/components/ui/appointments/appointmentPurposeStyles';
+import type { Patient } from '@/types/patient';
+import {
+  combineLocalDateAndTime,
+  formatTimeForInput,
+  isSameLocalCalendarDay,
+} from '@/lib/appointmentTime';
+
+interface AppointmentBookingModalProps {
+  open: boolean;
+  scheduleDate: Date;
+  patient: Patient | undefined;
+  providerUserId: string | null;
+  providerName: string;
+  initialHour: number;
+  onClose: () => void;
+  onSubmit: (payload: {
+    patientId: string;
+    providerUserId: string;
+    startAt: string;
+    endAt: string;
+    purpose: AppointmentPurpose;
+  }) => Promise<void>;
+  loading?: boolean;
+}
+
+export function AppointmentBookingModal({
+  open,
+  scheduleDate,
+  patient,
+  providerUserId,
+  providerName,
+  initialHour,
+  onClose,
+  onSubmit,
+  loading = false,
+}: AppointmentBookingModalProps) {
+  const [startTime, setStartTime] = useState('09:00');
+  const [endTime, setEndTime] = useState('10:00');
+  const [purpose, setPurpose] = useState<AppointmentPurpose>('consultation');
+  const [error, setError] = useState('');
+  const purposeTextColor =
+    purpose === 'consultation'
+      ? '#ddd6fe'
+      : purpose === 'filling'
+        ? '#fed7aa'
+        : purpose === 'endo'
+          ? '#fecaca'
+          : purpose === 'visit'
+            ? '#bae6fd'
+            : '#d9f99d';
+
+  useEffect(() => {
+    if (!open) {
+      return;
+    }
+    const start = new Date(
+      scheduleDate.getFullYear(),
+      scheduleDate.getMonth(),
+      scheduleDate.getDate(),
+      initialHour,
+      0,
+      0,
+      0,
+    );
+    const end = new Date(
+      scheduleDate.getFullYear(),
+      scheduleDate.getMonth(),
+      scheduleDate.getDate(),
+      initialHour < 23 ? initialHour + 1 : 23,
+      initialHour < 23 ? 0 : 59,
+      0,
+      0,
+    );
+    setStartTime(formatTimeForInput(start));
+    setEndTime(formatTimeForInput(end));
+    setPurpose('consultation');
+    setError('');
+  }, [open, scheduleDate, initialHour]);
+
+  if (!open || !providerUserId) {
+    return null;
+  }
+
+  const inputClass =
+    'w-full rounded-[var(--radius-md)] border border-border bg-background-secondary/90 text-text-primary px-3 py-2 text-sm focus:outline-none focus:ring-2 focus:ring-primary/35';
+
+  async function handleSubmit() {
+    setError('');
+    if (!providerUserId) {
+      return;
+    }
+    if (!patient) {
+      setError('Select a patient first.');
+      return;
+    }
+
+    const startAt = combineLocalDateAndTime(scheduleDate, startTime);
+    const endAt = combineLocalDateAndTime(scheduleDate, endTime);
+
+    if (endAt <= startAt) {
+      setError('End time must be after start time.');
+      return;
+    }
+
+    const now = new Date();
+    if (isSameLocalCalendarDay(scheduleDate, now) && startAt.getTime() < now.getTime()) {
+      setError('Cannot schedule in the past.');
+      return;
+    }
+
+    await onSubmit({
+      patientId: patient.id,
+      providerUserId,
+      startAt: startAt.toISOString(),
+      endAt: endAt.toISOString(),
+      purpose,
+    });
+  }
+
+  return (
+    <div className="fixed inset-0 z-50 flex items-center justify-center p-4 bg-black/55">
+      <div
+        className="surface-card w-full max-w-md p-5 space-y-4 shadow-xl"
+        role="dialog"
+        aria-modal="true"
+        aria-labelledby="appointment-modal-title"
+      >
+        <div className="flex items-start justify-between gap-2">
+          <h2 id="appointment-modal-title" className="text-lg font-semibold text-text-primary pr-2">
+            New appointment
+          </h2>
+          <button
+            type="button"
+            onClick={onClose}
+            className="rounded-[var(--radius-sm)] p-1.5 text-text-muted hover:text-text-primary hover:bg-background-secondary/80 focus:outline-none focus:ring-2 focus:ring-primary/35"
+            aria-label="Close"
+          >
+            <X className="h-5 w-5 icon-flat" />
+          </button>
+        </div>
+
+        <p className="text-sm text-text-secondary">
+          Provider: <span className="text-text-primary font-medium">{providerName}</span>
+        </p>
+
+        <div>
+          <label className="block text-sm font-medium text-text-secondary mb-1">Patient</label>
+          <p className="text-sm text-text-primary rounded-[var(--radius-md)] border border-border bg-background-secondary/60 px-3 py-2">
+            {patient ? `${patient.firstName} ${patient.lastName}` : '—'}
+          </p>
+        </div>
+
+        <div className="grid grid-cols-2 gap-3">
+          <div>
+            <label className="block text-sm font-medium text-text-secondary mb-1">Start</label>
+            <input
+              type="time"
+              step={60}
+              className={inputClass}
+              value={startTime}
+              onChange={(e) => setStartTime(e.target.value)}
+            />
+          </div>
+          <div>
+            <label className="block text-sm font-medium text-text-secondary mb-1">End</label>
+            <input
+              type="time"
+              step={60}
+              className={inputClass}
+              value={endTime}
+              onChange={(e) => setEndTime(e.target.value)}
+            />
+          </div>
+        </div>
+
+        <Dropdown
+          label="Purpose"
+          value={purpose}
+          onChange={(e) => setPurpose(e.target.value as AppointmentPurpose)}
+          style={{ color: purposeTextColor }}
+        >
+          <option value="consultation" style={{ color: '#ddd6fe', backgroundColor: '#14253d' }}>
+            {APPOINTMENT_PURPOSE_LABEL.consultation}
+          </option>
+          <option value="filling" style={{ color: '#fed7aa', backgroundColor: '#14253d' }}>
+            {APPOINTMENT_PURPOSE_LABEL.filling}
+          </option>
+          <option value="endo" style={{ color: '#fecaca', backgroundColor: '#14253d' }}>
+            {APPOINTMENT_PURPOSE_LABEL.endo}
+          </option>
+          <option value="visit" style={{ color: '#bae6fd', backgroundColor: '#14253d' }}>
+            {APPOINTMENT_PURPOSE_LABEL.visit}
+          </option>
+          <option value="hygiene" style={{ color: '#d9f99d', backgroundColor: '#14253d' }}>
+            {APPOINTMENT_PURPOSE_LABEL.hygiene}
+          </option>
+        </Dropdown>
+
+        {error && <p className="text-sm text-red-400">{error}</p>}
+
+        <div className="flex gap-2 justify-end">
+          <Button type="button" variant="ghost" onClick={onClose} disabled={loading}>
+            Cancel
+          </Button>
+          <Button type="button" variant="primary" onClick={() => void handleSubmit()} isLoading={loading}>
+            Save
+          </Button>
+        </div>
+      </div>
+    </div>
+  );
+}

frontend/src/components/ui/appointments/AppointmentScheduleGrid.tsx

@@ -0,0 +1,157 @@
+'use client';
+
+import { Trash2 } from 'lucide-react';
+import type { AppointmentColumnProvider, AppointmentRecord } from '@/types/appointment';
+import { formatHourLabel } from '@/lib/appointmentTime';
+import { purposeDeleteIconClass, purposeStyle } from '@/components/ui/appointments/appointmentPurposeStyles';
+
+const HOUR_PX = 40;
+const HOURS = Array.from({ length: 24 }, (_, i) => i);
+
+function layoutBlock(apt: AppointmentRecord, day: Date): { top: string; height: string } | null {
+  const dayStart = new Date(day.getFullYear(), day.getMonth(), day.getDate(), 0, 0, 0, 0);
+  const dayEnd = new Date(day.getFullYear(), day.getMonth(), day.getDate() + 1, 0, 0, 0, 0);
+  const start = new Date(apt.startAt);
+  const end = new Date(apt.endAt);
+  const ms = dayEnd.getTime() - dayStart.getTime();
+  const clipStart = Math.max(start.getTime(), dayStart.getTime());
+  const clipEnd = Math.min(end.getTime(), dayEnd.getTime());
+  if (clipEnd <= clipStart) {
+    return null;
+  }
+  const top = ((clipStart - dayStart.getTime()) / ms) * 100;
+  const height = ((clipEnd - clipStart) / ms) * 100;
+  return { top: `${top}%`, height: `${height}%` };
+}
+
+interface AppointmentScheduleGridProps {
+  day: Date;
+  providers: AppointmentColumnProvider[];
+  appointments: AppointmentRecord[];
+  canBook: boolean;
+  canDelete?: boolean;
+  onDeleteAppointment?: (id: string) => void;
+  onSlotClick: (hour: number, providerUserId: string, providerName: string) => void;
+}
+
+export function AppointmentScheduleGrid({
+  day,
+  providers,
+  appointments,
+  canBook,
+  canDelete = false,
+  onDeleteAppointment,
+  onSlotClick,
+}: AppointmentScheduleGridProps) {
+  const gridHeight = HOURS.length * HOUR_PX;
+
+  if (providers.length === 0) {
+    return (
+      <div className="surface-card p-6 text-sm text-text-muted">
+        No providers available. Add staff with treatment edit access to see columns here.
+      </div>
+    );
+  }
+
+  return (
+    <div className="surface-card overflow-x-auto">
+      <div className="min-w-[640px]">
+        <div className="flex border-b border-border">
+          <div className="w-14 flex-shrink-0" />
+          {providers.map((p) => (
+            <div
+              key={p.userId}
+              className="flex-1 min-w-[130px] text-center text-sm font-medium text-text-primary py-2.5 px-1 border-l border-border"
+            >
+              {p.name}
+            </div>
+          ))}
+        </div>
+
+        <div className="flex">
+          <div className="w-14 flex-shrink-0 border-r border-border bg-background-secondary/40">
+            {HOURS.map((h) => (
+              <div
+                key={h}
+                className="text-[11px] text-text-muted flex items-start justify-end pr-1.5 pt-0.5 border-b border-border/50"
+                style={{ height: HOUR_PX }}
+              >
+                {formatHourLabel(h)}
+              </div>
+            ))}
+          </div>
+
+          <div className="flex-1 flex min-w-0">
+            {providers.map((p) => (
+              <div
+                key={p.userId}
+                className="flex-1 min-w-[130px] border-l border-border relative"
+                style={{ height: gridHeight }}
+              >
+                {HOURS.map((h) => {
+                  const slotDisabled = !canBook;
+                  return (
+                    <button
+                      key={h}
+                      type="button"
+                      disabled={slotDisabled}
+                      title={
+                        slotDisabled ? 'You cannot create appointments' : `Book ${formatHourLabel(h)}`
+                      }
+                      className={`absolute left-0 right-0 border-b border-border/50 transition-colors ${
+                        slotDisabled
+                          ? 'cursor-not-allowed opacity-50'
+                          : 'hover:bg-primary/8 cursor-pointer'
+                      }`}
+                      style={{ top: h * HOUR_PX, height: HOUR_PX }}
+                      onClick={() => onSlotClick(h, p.userId, p.name)}
+                    />
+                  );
+                })}
+
+                {appointments
+                  .filter((a) => a.providerUserId === p.userId)
+                  .map((apt) => {
+                    const pos = layoutBlock(apt, day);
+                    if (!pos) {
+                      return null;
+                    }
+                    return (
+                      <div
+                        key={apt.id}
+                        className={`absolute left-0.5 right-0.5 rounded-[var(--radius-sm)] border pointer-events-none z-10 flex flex-row items-center gap-1.5 px-1.5 py-1 min-h-[36px] ${purposeStyle(apt.purpose)}`}
+                        style={{ top: pos.top, height: pos.height, minHeight: 36 }}
+                      >
+                        <div className="pointer-events-none flex-1 min-w-0 overflow-hidden text-left">
+                          <p className="text-[11px] font-medium leading-tight truncate">
+                            {apt.patient.firstName} {apt.patient.lastName}
+                          </p>
+                          {apt.patient.phone && (
+                            <p className="text-[10px] opacity-90 truncate">{apt.patient.phone}</p>
+                          )}
+                        </div>
+                        {canDelete && onDeleteAppointment && (
+                          <button
+                            type="button"
+                            className="group pointer-events-auto shrink-0 self-center z-20 mr-2 ml-1 inline-flex cursor-pointer items-center justify-center rounded-[var(--radius-sm)] border-0 bg-transparent p-1 outline-none focus-visible:ring-2 focus-visible:ring-primary/35"
+                            aria-label="Delete appointment"
+                            title="Delete appointment"
+                            onClick={(e) => {
+                              e.stopPropagation();
+                              onDeleteAppointment(apt.id);
+                            }}
+                          >
+                            <Trash2 className={`w-4 h-4 ${purposeDeleteIconClass(apt.purpose)}`} />
+                          </button>
+                        )}
+                      </div>
+                    );
+                  })}
+              </div>
+            ))}
+          </div>
+        </div>
+      </div>
+    </div>
+  );
+}

frontend/src/components/ui/appointments/AppointmentScheduleLegend.tsx

@@ -0,0 +1,23 @@
+import {
+  APPOINTMENT_PURPOSE_LABEL,
+  APPOINTMENT_PURPOSE_LEGEND_SWATCH,
+} from '@/components/ui/appointments/appointmentPurposeStyles';
+import { APPOINTMENT_PURPOSES } from '@/types/appointment';
+
+export function AppointmentScheduleLegend() {
+  return (
+    <div className="surface-panel px-4 py-3">
+      <p className="text-xs font-medium text-text-secondary mb-2">Legend</p>
+      <div className="flex flex-wrap gap-3">
+        {APPOINTMENT_PURPOSES.map((p) => (
+          <div key={p} className="flex items-center gap-1.5 text-xs text-text-secondary">
+            <span
+              className={`inline-block h-3 w-3 rounded-sm border ${APPOINTMENT_PURPOSE_LEGEND_SWATCH[p]}`}
+            />
+            {APPOINTMENT_PURPOSE_LABEL[p]}
+          </div>
+        ))}
+      </div>
+    </div>
+  );
+}

frontend/src/components/ui/appointments/AppointmentsPatientSearch.tsx

@@ -0,0 +1,87 @@
+'use client';
+
+import { Search } from 'lucide-react';
+import { Button } from '@/components/ui/common/Button';
+import { Input } from '@/components/ui/common/Input';
+import type { Patient } from '@/types/patient';
+
+interface AppointmentsPatientSearchProps {
+  search: string;
+  onSearchChange: (value: string) => void;
+  patients: Patient[];
+  selectedPatientId?: string;
+  onSelectPatient: (patient: Patient) => void;
+  loading?: boolean;
+  canAddPatient: boolean;
+  onAddPatient: () => void;
+}
+
+export function AppointmentsPatientSearch({
+  search,
+  onSearchChange,
+  patients,
+  selectedPatientId,
+  onSelectPatient,
+  loading = false,
+  canAddPatient,
+  onAddPatient,
+}: AppointmentsPatientSearchProps) {
+  const trimmed = search.trim();
+  const showAddForEmptyResults =
+    trimmed.length > 0 && !loading && patients.length === 0;
+
+  return (
+    <div className="surface-card p-4 space-y-4">
+      <div className="flex flex-col sm:flex-row gap-3 sm:items-center">
+        <div className="flex-1">
+          <Input
+            placeholder="Search existing patients"
+            value={search}
+            onChange={(e) => onSearchChange(e.target.value)}
+            icon={<Search className="h-4 w-4 icon-flat" />}
+          />
+        </div>
+        {showAddForEmptyResults && (
+          <Button
+            type="button"
+            variant="primary"
+            disabled={!canAddPatient}
+            onClick={onAddPatient}
+            title={!canAddPatient ? 'You do not have permission to add patients.' : undefined}
+          >
+            + Add New Patient
+          </Button>
+        )}
+      </div>
+
+      <div className="space-y-2 max-h-72 overflow-y-auto">
+        {loading && <p className="text-sm text-text-muted">Searching…</p>}
+
+        {!loading && trimmed.length === 0 && (
+          <p className="text-sm text-text-muted">Type to search patients by name, phone, or email.</p>
+        )}
+
+        {patients.map((patient) => {
+          const isSelected = selectedPatientId === patient.id;
+          return (
+            <button
+              key={patient.id}
+              type="button"
+              onClick={() => onSelectPatient(patient)}
+              className={`w-full text-left rounded-[var(--radius-sm)] border px-3 py-2 transition-colors ${
+                isSelected
+                  ? 'bg-primary-soft border-primary/60'
+                  : 'border-border/60 hover:bg-background-card/70'
+              }`}
+            >
+              <p className="text-sm font-medium text-text-primary">
+                {patient.firstName} {patient.lastName}
+              </p>
+              <p className="text-xs text-text-muted">{patient.phone || patient.email || 'No contact'}</p>
+            </button>
+          );
+        })}
+      </div>
+    </div>
+  );
+}

frontend/src/components/ui/appointments/appointmentPurposeStyles.ts

@@ -0,0 +1,45 @@
+import type { AppointmentPurpose } from '@/types/appointment';
+
+export const APPOINTMENT_PURPOSE_LABEL: Record<AppointmentPurpose, string> = {
+  consultation: 'Consultation',
+  filling: 'Filling',
+  endo: 'Endo',
+  visit: 'Visit',
+  hygiene: 'Hygiene',
+};
+
+/** Background + border for blocks / legend (matches reference palette). */
+export const APPOINTMENT_PURPOSE_STYLES: Record<AppointmentPurpose, string> = {
+  consultation: 'bg-violet-500/25 border-violet-400/50 text-violet-100',
+  filling: 'bg-orange-500/25 border-orange-400/50 text-orange-100',
+  endo: 'bg-red-500/25 border-red-400/50 text-red-100',
+  visit: 'bg-sky-500/25 border-sky-400/50 text-sky-100',
+  hygiene: 'bg-lime-500/20 border-lime-400/45 text-lime-100',
+};
+
+export function purposeStyle(purpose: string): string {
+  const p = purpose as AppointmentPurpose;
+  return APPOINTMENT_PURPOSE_STYLES[p] ?? 'bg-surface-elevated border-border text-text-secondary';
+}
+
+/** Trash icon — legend hues; `!` overrides global `.lucide { color: var(--color-icon) }`. */
+export function purposeDeleteIconClass(purpose: string): string {
+  const p = purpose as AppointmentPurpose;
+  const map: Record<AppointmentPurpose, string> = {
+    consultation: '!text-violet-400 group-hover:!text-violet-300',
+    filling: '!text-orange-400 group-hover:!text-orange-300',
+    endo: '!text-red-400 group-hover:!text-red-300',
+    visit: '!text-sky-400 group-hover:!text-sky-300',
+    hygiene: '!text-lime-600 group-hover:!text-lime-500',
+  };
+  return map[p] ?? '!text-text-muted group-hover:!text-text-secondary';
+}
+
+/** Small swatch for legend (background + border only). */
+export const APPOINTMENT_PURPOSE_LEGEND_SWATCH: Record<AppointmentPurpose, string> = {
+  consultation: 'bg-violet-500/85 border-violet-400/75',
+  filling: 'bg-orange-500/85 border-orange-400/75',
+  endo: 'bg-red-500/85 border-red-400/75',
+  visit: 'bg-sky-500/85 border-sky-400/75',
+  hygiene: 'bg-lime-500/80 border-lime-400/70',
+};

frontend/src/components/ui/common/Badge.tsx

@@ -1,31 +1,59 @@
-//src/components/ui/Badge.tsx
 import React from 'react';
 
-type BadgeVariant = 'success' | 'warning' | 'danger' | 'default';
+export type BadgeVariant = 'success' | 'warning' | 'danger' | 'default';
 
 interface BadgeProps {
-    children: React.ReactNode;
-    variant?: BadgeVariant;
-    className?: string;
+  children: React.ReactNode;
+  variant?: BadgeVariant;
+  className?: string;
+  /**
+   * Same pixel width for every badge (table columns).
+   * Set false only when the pill should shrink to the label.
+   */
+  fixedWidth?: boolean;
 }
 
 const variantStyles: Record<BadgeVariant, string> = {
-    success: 'bg-emerald-900/30 text-emerald-300 border-emerald-700/60',
-    warning: 'bg-amber-900/30 text-amber-300 border-amber-700/60',
-    danger: 'bg-red-950/30 text-red-300 border-red-700/60',
-    default: 'bg-background-secondary text-text-secondary border-border',
+  success: 'bg-emerald-900/30 text-emerald-300 border-emerald-700/60',
+  warning: 'bg-amber-900/30 text-amber-300 border-amber-700/60',
+  danger: 'bg-red-950/30 text-red-300 border-red-700/60',
+  default: 'bg-background-secondary text-text-secondary border-border',
 };
 
+/** Explicit width + height so every row matches; flex centers label optically. */
+const FIXED_LAYOUT_CLASS =
+  'w-[8rem] min-w-[8rem] max-w-[8rem] shrink-0 h-7 px-2 py-0';
+
 export function Badge({
-    children,
-    variant = 'default',
-    className,
+  children,
+  variant = 'default',
+  className,
+  fixedWidth = true,
 }: BadgeProps) {
-    return (
-        <span
-            className={`px-2 py-1 text-xs font-medium rounded-lg border inline-block ${variantStyles[variant]} ${className || ''}`}
-        >
-            {children}
-        </span>
-    );
-}
+  const layoutClass = fixedWidth
+    ? `${FIXED_LAYOUT_CLASS} justify-center text-center`
+    : 'min-h-[1.75rem] px-2.5 py-1 justify-center';
+
+  return (
+    <span
+      className={`inline-flex items-center box-border rounded-md border text-xs font-medium leading-none whitespace-nowrap ${variantStyles[variant]} ${layoutClass} ${className ?? ''}`}
+    >
+      {children}
+    </span>
+  );
+}
+
+/** Map organization link / invitation row status to badge variant. */
+export function organizationLinkStatusVariant(status: string): BadgeVariant {
+  switch (status) {
+    case 'ACTIVE':
+      return 'success';
+    case 'PENDING':
+      return 'warning';
+    case 'REJECTED':
+    case 'EXPIRED':
+      return 'danger';
+    default:
+      return 'default';
+  }
+}

frontend/src/components/ui/common/Button.tsx

@@ -1,6 +1,4 @@
-// src/components/ui/Button.tsx
 import React from 'react';
-import { Loader2 } from 'lucide-react';
 
 type ButtonVariant = 'primary' | 'secondary' | 'outline' | 'danger' | 'ghost';
 type ButtonSize = 'sm' | 'md' | 'lg';
@@ -25,23 +23,22 @@ export const Button: React.FC<ButtonProps> = ({
 }) => {
   const baseClasses =
     'inline-flex items-center justify-center rounded-[var(--radius-md)] font-medium transition-all duration-200 ' +
-    'focus:outline-none focus:ring-2 focus:ring-primary/40 disabled:opacity-50 disabled:cursor-not-allowed';
+    'focus:outline-none focus:ring-2 focus:ring-primary/40 disabled:cursor-not-allowed';
 
   const variantClasses: Record<ButtonVariant, string> = {
     primary:
-      'bg-primary text-primary-contrast hover:brightness-105 shadow-[0_0_0_1px_var(--color-primary-soft)]',
+      'bg-primary text-white hover:opacity-90 disabled:opacity-60',
 
     secondary:
-      'bg-surface-elevated text-text-primary border border-border hover:border-border-strong',
+      'bg-surface-elevated text-text-primary border border-border hover:border-border-strong disabled:opacity-50',
 
     outline:
-      'border border-border text-text-primary hover:bg-background-card/70',
+      'border border-border text-text-primary hover:bg-background-card/70 disabled:opacity-50',
 
-    danger:
-      'bg-red-600 text-white hover:bg-red-700',
+    danger: 'bg-red-600 text-white hover:bg-red-700 disabled:opacity-50',
 
     ghost:
-      'text-text-secondary hover:text-text-primary hover:bg-background-card/70',
+      'text-text-secondary hover:text-text-primary hover:bg-background-card/70 disabled:opacity-50',
   };
 
   const sizeClasses: Record<ButtonSize, string> = {
@@ -51,17 +48,16 @@ export const Button: React.FC<ButtonProps> = ({
   };
 
   const widthClass = fullWidth ? 'w-full' : '';
+  const loadingClass = isLoading ? 'opacity-70 animate-pulse pointer-events-none' : '';
 
   return (
     <button
-      className={`${baseClasses} ${variantClasses[variant]} ${sizeClasses[size]} ${widthClass} ${className}`}
+      className={`${baseClasses} ${variantClasses[variant]} ${sizeClasses[size]} ${widthClass} ${loadingClass} ${className}`}
       disabled={disabled || isLoading}
+      aria-busy={isLoading || undefined}
       {...props}
     >
-      {isLoading && (
-        <Loader2 className="w-4 h-4 mr-2 animate-spin" />
-      )}
       {children}
     </button>
   );
-};
+};

frontend/src/components/ui/common/Dropdown.tsx

@@ -0,0 +1,68 @@
+'use client';
+
+import { ChevronDown } from 'lucide-react';
+import React, { forwardRef } from 'react';
+
+interface DropdownProps extends React.SelectHTMLAttributes<HTMLSelectElement> {
+  label?: string;
+  error?: string;
+}
+
+export const Dropdown = forwardRef<HTMLSelectElement, DropdownProps>(
+  ({ label, error, className = '', id, children, ...props }, ref) => {
+    const selectId = id || `dropdown-${Math.random().toString(36).slice(2, 9)}`;
+
+    return (
+      <div className="w-full">
+        {label && (
+          <label
+            htmlFor={selectId}
+            className="block text-sm font-medium text-text-secondary mb-1"
+          >
+            {label}
+          </label>
+        )}
+
+        <div className="relative">
+          <select
+            ref={ref}
+            id={selectId}
+            className={`
+              w-full appearance-none rounded-[var(--radius-md)] border
+              ${error ? 'border-red-500' : 'border-border'}
+              bg-background-secondary/90 text-text-primary
+
+              pl-4 pr-14 py-2 text-sm
+
+              focus:outline-none focus:ring-2 focus:ring-primary/35 focus:border-border-strong
+
+              disabled:opacity-50 disabled:cursor-not-allowed
+
+              transition-all duration-200 shadow-[inset_0_1px_0_rgba(255,255,255,0.02)]
+
+              ${className}
+            `}
+            {...props}
+          >
+            {children}
+          </select>
+
+          <div
+            className="pointer-events-none absolute inset-y-0 right-5 flex items-center text-text-muted"
+            aria-hidden
+          >
+            <ChevronDown className="h-4 w-4 icon-flat" />
+          </div>
+        </div>
+
+        {error && (
+          <p className="mt-1 text-sm text-red-500">
+            {error}
+          </p>
+        )}
+      </div>
+    );
+  },
+);
+
+Dropdown.displayName = 'Dropdown';

frontend/src/components/ui/common/ScheduleDayPicker.tsx

@@ -0,0 +1,51 @@
+'use client';
+
+import { ChevronLeft, ChevronRight } from 'lucide-react';
+import { addCalendarDays, compareLocalDayStart } from '@/lib/appointmentTime';
+
+interface ScheduleDayPickerProps {
+  value: Date;
+  onChange: (day: Date) => void;
+  /** Inclusive minimum calendar day (typically today at local midnight). */
+  minDate: Date;
+  label?: string;
+}
+
+export function ScheduleDayPicker({ value, onChange, minDate, label = 'Schedule date' }: ScheduleDayPickerProps) {
+  const canGoPrev = compareLocalDayStart(value, minDate) > 0;
+
+  const labelText = value.toLocaleDateString(undefined, {
+    weekday: 'short',
+    month: 'short',
+    day: 'numeric',
+    year: 'numeric',
+  });
+
+  return (
+    <div className="w-full max-w-md">
+      <p className="text-sm font-medium text-text-secondary mb-2">{label}</p>
+      <div className="flex items-center gap-1 rounded-[var(--radius-md)] border border-border bg-background-secondary/90 px-1 py-1 shadow-[inset_0_1px_0_rgba(255,255,255,0.02)]">
+        <button
+          type="button"
+          disabled={!canGoPrev}
+          onClick={() => onChange(addCalendarDays(value, -1))}
+          className="shrink-0 rounded-[var(--radius-sm)] p-2 text-text-muted hover:text-text-primary hover:bg-background-card/80 disabled:opacity-35 disabled:pointer-events-none focus:outline-none focus:ring-2 focus:ring-primary/35"
+          aria-label="Previous day"
+        >
+          <ChevronLeft className="h-4 w-4 icon-flat" />
+        </button>
+        <div className="flex-1 min-w-0 text-center text-sm font-medium text-text-primary tabular-nums px-2 py-1.5">
+          {labelText}
+        </div>
+        <button
+          type="button"
+          onClick={() => onChange(addCalendarDays(value, 1))}
+          className="shrink-0 rounded-[var(--radius-sm)] p-2 text-text-muted hover:text-text-primary hover:bg-background-card/80 focus:outline-none focus:ring-2 focus:ring-primary/35"
+          aria-label="Next day"
+        >
+          <ChevronRight className="h-4 w-4 icon-flat" />
+        </button>
+      </div>
+    </div>
+  );
+}

frontend/src/components/ui/common/SearchBar.tsx

@@ -0,0 +1,38 @@
+import { Search } from 'lucide-react';
+import type { ReactNode } from 'react';
+import { Input } from './Input';
+
+interface SearchBarProps {
+  value: string;
+  onChange: (value: string) => void;
+  placeholder: string;
+  onSubmit?: () => void;
+  actions?: ReactNode;
+}
+
+export function SearchBar({
+  value,
+  onChange,
+  placeholder,
+  onSubmit,
+  actions,
+}: SearchBarProps) {
+  return (
+    <div className="surface-card p-4">
+      <div className="flex gap-4 items-center">
+        <div className="flex-1">
+          <Input
+            placeholder={placeholder}
+            value={value}
+            onChange={(e) => onChange(e.target.value)}
+            onKeyDown={(e) => {
+              if (e.key === 'Enter') onSubmit?.();
+            }}
+            icon={<Search className="h-4 w-4 icon-flat" />}
+          />
+        </div>
+        {actions && <div className="flex gap-2">{actions}</div>}
+      </div>
+    </div>
+  );
+}

frontend/src/components/ui/common/Sidebar.tsx

@@ -13,7 +13,7 @@ import {
   CreditCard,
 } from 'lucide-react';
 import { useAuth } from '@/lib/hooks/useAuth';
-import { canViewTab } from '@/shared/permissions';
+import { canAccessAppointmentsSection, canViewTab } from '@/shared/permissions';
 
 const menu = [
   { name: 'Today', path: '/today', icon: LayoutDashboard, read: 'TAB_TODAY_READ' as const },
@@ -35,14 +35,24 @@ function Sidebar() {
       const withCounterpartTab = [
         menu[0],
         menu[1],
-        { name: counterpartLabel, path: '/lab', icon: FlaskConical, read: 'TAB_LAB_READ' as const },
+        {
+          name: counterpartLabel,
+          path: '/organizations',
+          icon: FlaskConical,
+          read: 'TAB_ORGANIZATIONS_READ' as const,
+        },
         menu[2],
         menu[3],
         menu[4],
         menu[5],
         menu[6],
       ];
-      return withCounterpartTab.filter((item) => canViewTab(currentOrganization, item.read));
+      return withCounterpartTab.filter((item) => {
+        if (item.path === '/appointments') {
+          return canAccessAppointmentsSection(currentOrganization);
+        }
+        return canViewTab(currentOrganization, item.read);
+      });
     },
     [counterpartLabel, currentOrganization],
   );

frontend/src/components/ui/common/Table.tsx

@@ -0,0 +1,27 @@
+import type { ReactNode } from 'react';
+
+interface TableProps {
+  headers: ReactNode;
+  body: ReactNode;
+  footer?: ReactNode;
+}
+
+export function Table({ headers, body, footer }: TableProps) {
+  return (
+    <div className="surface-card overflow-hidden">
+      <table className="w-full">
+        <thead className="bg-background-secondary/70 border-b border-border">
+          {headers}
+        </thead>
+        <tbody className="divide-y divide-border/60">
+          {body}
+        </tbody>
+      </table>
+      {footer && (
+        <div className="px-6 py-3 border-t border-border/60 flex justify-between items-center bg-background-secondary/70">
+          {footer}
+        </div>
+      )}
+    </div>
+  );
+}

frontend/src/components/ui/organization/OrganizationSelectorContent.tsx

@@ -2,7 +2,7 @@
 
 import { useState } from 'react';
 import { useAuth } from '@/lib/hooks/useAuth';
-import { Building2, Beaker, Mail, Plus } from 'lucide-react';
+import { Building2, Beaker, Mail } from 'lucide-react';
 import { Input } from '@/components/ui/common/Input';
 import { Button } from '@/components/ui/common/Button';
 
@@ -55,7 +55,6 @@ export function OrganizationSelectorContent() {
             setIsCreateOpen((prev) => !prev);
           }}
         >
-          <Plus className="h-4 w-4 mr-2 icon-flat" />
           {isCreateOpen ? 'Cancel' : 'Create Organization'}
         </Button>
       </div>

frontend/src/components/ui/treatment/AppointmentsStrip.tsx

@@ -0,0 +1,114 @@
+'use client';
+
+import { CalendarDays } from 'lucide-react';
+import { purposeStyle } from '@/components/ui/appointments/appointmentPurposeStyles';
+import { ScheduleDayPicker } from '@/components/ui/common/ScheduleDayPicker';
+import { startOfLocalDay } from '@/lib/appointmentTime';
+import type { TreatmentAppointment } from '@/types/treatment';
+
+interface AppointmentsStripProps {
+  stripHidden: boolean;
+  onToggleStripHidden: () => void;
+  selectedDay: Date;
+  onSelectDay: (day: Date) => void;
+  /** Same lower bound as Appointments schedule (cannot pick days before this). */
+  minScheduleDate: Date;
+  appointments: TreatmentAppointment[];
+  selectedAppointmentId: string | null;
+  onSelectAppointment: (id: string) => void;
+  loading?: boolean;
+}
+
+export function AppointmentsStrip({
+  stripHidden,
+  onToggleStripHidden,
+  selectedDay,
+  onSelectDay,
+  minScheduleDate,
+  appointments,
+  selectedAppointmentId,
+  onSelectAppointment,
+  loading = false,
+}: AppointmentsStripProps) {
+  if (stripHidden) {
+    return (
+      <div className="surface-card p-3 flex items-center justify-between gap-3 flex-wrap">
+        <p className="text-sm text-text-secondary">Appointments are hidden.</p>
+        <button
+          type="button"
+          onClick={onToggleStripHidden}
+          className="text-sm font-medium text-primary hover:underline focus:outline-none focus-visible:ring-2 focus-visible:ring-primary/40 rounded-[var(--radius-sm)]"
+        >
+          Show appointments
+        </button>
+      </div>
+    );
+  }
+
+  return (
+    <div className="surface-card p-4 space-y-4">
+      <div className="flex items-center justify-between gap-3 flex-wrap">
+        <div className="flex items-center gap-2 min-w-0">
+          <CalendarDays className="w-5 h-5 text-text-muted shrink-0 icon-flat" aria-hidden />
+          <h2 className="text-sm font-semibold text-text-primary truncate">My appointments</h2>
+        </div>
+        <button
+          type="button"
+          onClick={onToggleStripHidden}
+          className="text-sm font-medium text-primary hover:underline focus:outline-none focus-visible:ring-2 focus-visible:ring-primary/40 rounded-[var(--radius-sm)]"
+        >
+          Hide appointments
+        </button>
+      </div>
+
+      <div className="flex flex-col sm:flex-row sm:items-end gap-4 sm:justify-between">
+        <ScheduleDayPicker
+          value={selectedDay}
+          minDate={minScheduleDate}
+          onChange={(d) => onSelectDay(startOfLocalDay(d))}
+        />
+        {loading && (
+          <p className="text-sm text-text-muted pb-2">Loading appointments…</p>
+        )}
+      </div>
+
+      <div className="flex flex-wrap gap-2">
+        {appointments.length === 0 && (
+          <p className="text-sm text-text-muted">No appointments assigned to you on this day.</p>
+        )}
+        {appointments.map((a) => {
+          const sel = a.id === selectedAppointmentId;
+          const start = new Date(a.startAt);
+          const end = new Date(a.endAt);
+          const timeLabel = `${start.toLocaleTimeString(undefined, {
+            hour: 'numeric',
+            minute: '2-digit',
+          })} – ${end.toLocaleTimeString(undefined, {
+            hour: 'numeric',
+            minute: '2-digit',
+          })}`;
+          const palette = purposeStyle(a.purpose);
+          return (
+            <button
+              key={a.id}
+              type="button"
+              onClick={() => onSelectAppointment(a.id)}
+              className={`
+                text-left rounded-[var(--radius-sm)] border px-3 py-2 min-w-[200px] max-w-[280px] transition-shadow min-h-[52px]
+                focus:outline-none focus-visible:ring-2 focus-visible:ring-primary/45
+                ${palette}
+                ${sel ? 'ring-2 ring-primary ring-offset-2 ring-offset-background-secondary shadow-[inset_0_1px_0_rgba(255,255,255,0.06)]' : 'hover:brightness-110'}
+              `}
+            >
+              <p className="text-[11px] font-medium tabular-nums opacity-95">{timeLabel}</p>
+              <p className="text-sm font-medium leading-tight truncate mt-0.5">
+                {a.patientFirstName} {a.patientLastName}
+              </p>
+              <p className="text-[11px] opacity-90 capitalize mt-0.5">{a.purpose}</p>
+            </button>
+          );
+        })}
+      </div>
+    </div>
+  );
+}

frontend/src/components/ui/treatment/FdiToothChart.tsx

@@ -0,0 +1,225 @@
+'use client';
+
+import { useId } from 'react';
+import { FDI_LOWER_LEFT_TO_RIGHT, FDI_UPPER_LEFT_TO_RIGHT, getToothShapeKind } from '@/components/treatment/fdiToothMeta';
+import { ToothGlyph } from '@/components/ui/treatment/ToothGlyph';
+import type { FdiToothId } from '@/types/treatment';
+
+const TOOTH_NUMBER_GAP = 'mt-1';
+
+/** Six teeth each side of the midline (anteriors): slightly larger glyph + wrapper. */
+const MIDLINE_SIX = new Set<FdiToothId>([
+  '13', '12', '11', '21', '22', '23',
+  '43', '42', '41', '31', '32', '33',
+]);
+
+function quadrantMirrored(fdi: FdiToothId): boolean {
+  const q = fdi[0];
+  return q === '2' || q === '3';
+}
+
+interface FdiToothChartProps {
+  selected: ReadonlySet<FdiToothId>;
+  onToggle: (fdi: FdiToothId) => void;
+  disabled?: boolean;
+}
+
+export function FdiToothChart({ selected, onToggle, disabled }: FdiToothChartProps) {
+  const uid = useId().replace(/:/g, '');
+  const archPeak = 10;
+
+  const TOOTH_TWEAKS: Record<FdiToothId, { glyph: string; offset: number; rotate: number }> = {
+    '18': { glyph: 'w-[1.98rem] h-[4.65rem]', offset: 7, rotate: -11 },
+    '17': { glyph: 'w-[2rem] h-[4.75rem]', offset: 8, rotate: -8 },
+    '16': { glyph: 'w-[2.1rem] h-[4.95rem]', offset: 9, rotate: -6 },
+    '15': { glyph: 'w-[1.8rem] h-[4.8rem]', offset: 9, rotate: -4 },
+    '14': { glyph: 'w-[1.8rem] h-[4.85rem]', offset: 9, rotate: -2 },
+    '13': { glyph: 'w-[1.9rem] h-[5.28rem]', offset: 8, rotate: -1 },
+    '12': { glyph: 'w-[1.8rem] h-[5.02rem]', offset: 7, rotate: -1 },
+    '11': { glyph: 'w-[1.8rem] h-[5.08rem]', offset: 7, rotate: -0.5 },
+    '21': { glyph: 'w-[1.8rem] h-[5.08rem]', offset: 7, rotate: 0.5 },
+    '22': { glyph: 'w-[1.8rem] h-[5.02rem]', offset: 7, rotate: 1 },
+    '23': { glyph: 'w-[1.9rem] h-[5.28rem]', offset: 8, rotate: 1 },
+    '24': { glyph: 'w-[1.8rem] h-[4.85rem]', offset: 9, rotate: 2 },
+    '25': { glyph: 'w-[1.8rem] h-[4.8rem]', offset: 9, rotate: 4 },
+    '26': { glyph: 'w-[2.1rem] h-[4.95rem]', offset: 9, rotate: 6 },
+    '27': { glyph: 'w-[2rem] h-[4.75rem]', offset: 8, rotate: 8 },
+    '28': { glyph: 'w-[1.98rem] h-[4.65rem]', offset: 7, rotate: 11 },
+
+    '48': { glyph: 'w-[1.98rem] h-[4.7rem]', offset: -7, rotate: -11 },
+    '47': { glyph: 'w-[2rem] h-[4.8rem]', offset: -8, rotate: -8 },
+    '46': { glyph: 'w-[2.15rem] h-[5rem]', offset: -9, rotate: -6 },
+    '45': { glyph: 'w-[1.82rem] h-[4.85rem]', offset: -9, rotate: -4 },
+    '44': { glyph: 'w-[1.82rem] h-[4.9rem]', offset: -9, rotate: -2 },
+    '43': { glyph: 'w-[1.88rem] h-[5.34rem]', offset: -8, rotate: -1 },
+    '42': { glyph: 'w-[1.76rem] h-[5.04rem]', offset: -7, rotate: -1 },
+    '41': { glyph: 'w-[1.74rem] h-[4.98rem]', offset: -7, rotate: -0.5 },
+    '31': { glyph: 'w-[1.74rem] h-[4.98rem]', offset: -7, rotate: 0.5 },
+    '32': { glyph: 'w-[1.76rem] h-[5.04rem]', offset: -7, rotate: 1 },
+    '33': { glyph: 'w-[1.88rem] h-[5.34rem]', offset: -8, rotate: 1 },
+    '34': { glyph: 'w-[1.82rem] h-[4.9rem]', offset: -9, rotate: 2 },
+    '35': { glyph: 'w-[1.82rem] h-[4.85rem]', offset: -9, rotate: 4 },
+    '36': { glyph: 'w-[2.15rem] h-[5rem]', offset: -9, rotate: 6 },
+    '37': { glyph: 'w-[2rem] h-[4.8rem]', offset: -8, rotate: 8 },
+    '38': { glyph: 'w-[1.98rem] h-[4.7rem]', offset: -7, rotate: 11 },
+  };
+
+  const toothSizeClass = (fdi: FdiToothId) => {
+    const kind = getToothShapeKind(fdi);
+    const mid = MIDLINE_SIX.has(fdi);
+    switch (kind) {
+      case 'incisor':
+        return mid
+          ? { wrapper: 'w-[2.1rem]', glyph: 'w-[1.68rem] h-[4.78rem]' }
+          : { wrapper: 'w-[2rem]', glyph: 'w-[1.6rem] h-[4.6rem]' };
+      case 'canine':
+        return mid
+          ? { wrapper: 'w-[2.2rem]', glyph: 'w-[1.78rem] h-[5.05rem]' }
+          : { wrapper: 'w-[2.1rem]', glyph: 'w-[1.7rem] h-[4.9rem]' };
+      case 'premolar':
+        return mid
+          ? { wrapper: 'w-[2.34rem]', glyph: 'w-[1.93rem] h-[5.02rem]' }
+          : { wrapper: 'w-[2.25rem]', glyph: 'w-[1.85rem] h-[4.85rem]' };
+      case 'molar':
+        return mid
+          ? { wrapper: 'w-[2.52rem]', glyph: 'w-[2.12rem] h-[5.1rem]' }
+          : { wrapper: 'w-[2.45rem]', glyph: 'w-[2.05rem] h-[4.95rem]' };
+      default:
+        return { wrapper: 'w-[2.25rem]', glyph: 'w-[1.85rem] h-[4.85rem]' };
+    }
+  };
+
+  const archOffset = (index: number, count: number, upper?: boolean) => {
+    const center = (count - 1) / 2;
+    const dist = Math.abs(index - center) / center;
+    const curve = (1 - Math.pow(dist, 1.45)) * archPeak;
+    return upper ? curve : -curve;
+  };
+
+  const archRotate = (index: number, count: number) => {
+    const center = (count - 1) / 2;
+    const normalized = (index - center) / center;
+    return normalized * 6;
+  };
+
+  const Row = ({ teeth, upper }: { teeth: FdiToothId[]; upper?: boolean }) => (
+    <div className="flex flex-wrap justify-center gap-x-1 gap-y-1">
+      {teeth.map((fdi, i) => {
+        const kind = getToothShapeKind(fdi);
+        const gid = `${uid}-g-${fdi}-${i}`;
+        const isSel = selected.has(fdi);
+        const size = toothSizeClass(fdi);
+        const tweak = TOOTH_TWEAKS[fdi];
+        const offsetY = tweak ? tweak.offset : archOffset(i, teeth.length, upper);
+        const rotate = tweak ? tweak.rotate : archRotate(i, teeth.length);
+        const alignItems = upper ? 'items-end' : 'items-start';
+        return (
+          <div key={fdi} className={`flex flex-col items-center ${size.wrapper}`}>
+            <div className={`h-[5.9rem] flex ${alignItems} justify-center`}>
+              <button
+                type="button"
+                disabled={disabled}
+                onClick={() => onToggle(fdi)}
+                style={{ transform: `translateY(${offsetY}px) rotate(${rotate}deg)` }}
+                className={`
+                  rounded-[var(--radius-sm)] p-0.5 transition-transform
+                  focus:outline-none focus-visible:ring-2 focus-visible:ring-primary/50
+                  ${disabled ? 'opacity-50 cursor-not-allowed' : 'hover:scale-105 active:scale-95'}
+                `}
+                aria-pressed={isSel}
+                aria-label={`FDI tooth ${fdi}${isSel ? ', selected' : ''}`}
+              >
+                <ToothGlyph
+                  fdi={fdi}
+                  kind={kind}
+                  gradientId={gid}
+                  selected={isSel}
+                  upper={upper}
+                  mirrored={quadrantMirrored(fdi)}
+                  upsideDown={upper}
+                  className={tweak?.glyph ?? size.glyph}
+                />
+              </button>
+            </div>
+          </div>
+        );
+      })}
+    </div>
+  );
+
+  return (
+    <div className="surface-card p-4 space-y-6">
+      <div className="flex flex-col gap-3 sm:flex-row sm:items-start sm:justify-between">
+        <div>
+          <h3 className="text-sm font-semibold text-text-primary">FDI tooth chart</h3>
+          <p className="text-xs text-text-muted mt-0.5">
+            Tap teeth to multi-select (FDI). Selection applies to the active treatment record until you save.
+          </p>
+        </div>
+        <div className="flex flex-col gap-2 sm:items-end w-full sm:max-w-xs">
+          <p className="text-xs text-text-secondary tabular-nums text-right">
+            Selected: {selected.size === 0 ? '—' : [...selected].sort().join(', ')}
+          </p>
+        </div>
+      </div>
+
+      <p className="text-[11px] uppercase tracking-wide text-text-muted mb-1 text-center">Upper arch</p>
+
+      <div className="relative isolate py-1">
+        <div
+          className="pointer-events-none absolute left-1/2 top-3 bottom-3 w-px -translate-x-1/2 bg-border/70"
+          aria-hidden
+        />
+        <div className="relative z-10 space-y-0">
+          <Row teeth={FDI_UPPER_LEFT_TO_RIGHT} upper />
+          <div className={`flex justify-center gap-x-1 ${TOOTH_NUMBER_GAP}`}>
+            {FDI_UPPER_LEFT_TO_RIGHT.map((fdi) => {
+              const size = toothSizeClass(fdi);
+              const isSel = selected.has(fdi);
+              return (
+                <span
+                  key={`u-${fdi}`}
+                  className={`text-[10px] tabular-nums text-center leading-none ${size.wrapper} ${
+                    isSel ? 'text-primary' : 'text-text-muted'
+                  }`}
+                >
+                  {fdi}
+                </span>
+              );
+            })}
+          </div>
+
+          <div
+            className="my-4 h-px w-full max-w-[min(100%,42rem)] mx-auto bg-border/70"
+            role="separator"
+            aria-hidden
+          />
+
+          <div className="my-4 pt-1">
+            <div className="flex justify-center gap-x-1">
+              {FDI_LOWER_LEFT_TO_RIGHT.map((fdi) => {
+                const size = toothSizeClass(fdi);
+                const isSel = selected.has(fdi);
+                return (
+                  <span
+                    key={`l-${fdi}`}
+                    className={`text-[10px] tabular-nums text-center leading-none ${size.wrapper} ${
+                      isSel ? 'text-primary' : 'text-text-muted'
+                    }`}
+                  >
+                    {fdi}
+                  </span>
+                );
+              })}
+            </div>
+            <div className={TOOTH_NUMBER_GAP}>
+              <Row teeth={FDI_LOWER_LEFT_TO_RIGHT} />
+            </div>
+          </div>
+        </div>
+      </div>
+
+      <p className="text-[11px] uppercase tracking-wide text-text-muted mt-1 text-center">Lower arch</p>
+    </div>
+  );
+}

frontend/src/components/ui/treatment/PastTreatmentsPanel.tsx

@@ -0,0 +1,102 @@
+'use client';
+
+import { FileText } from 'lucide-react';
+import type { PastTreatment } from '@/types/treatment';
+
+interface PastTreatmentsPanelProps {
+  items: PastTreatment[];
+  loading?: boolean;
+  selectedTreatmentId?: string | null;
+  onSelectTreatment?: (treatment: PastTreatment) => void;
+}
+
+export function PastTreatmentsPanel({
+  items,
+  loading,
+  selectedTreatmentId,
+  onSelectTreatment,
+}: PastTreatmentsPanelProps) {
+  return (
+    <div className="surface-card p-4 space-y-3">
+      <div>
+        <h3 className="text-sm font-semibold text-text-primary">Previous treatments</h3>
+        <p className="text-xs text-text-muted mt-0.5">
+          Document preview is not implemented yet; file names are listed for context.
+        </p>
+      </div>
+
+      {loading && <p className="text-sm text-text-muted">Loading history...</p>}
+
+      {!loading && items.length === 0 && (
+        <p className="text-sm text-text-muted">No prior treatments for this patient.</p>
+      )}
+
+      <div className="space-y-3 max-h-[min(420px,55vh)] overflow-y-auto pr-1">
+        {items.map((t) => (
+          <article
+            key={t.id}
+            className={`border rounded-[var(--radius-md)] p-3 ${
+              selectedTreatmentId === t.id
+                ? 'border-primary/70 bg-primary-soft/35'
+                : 'border-border/70 bg-background-secondary/40'
+            }`}
+          >
+            <div className="flex items-start justify-between gap-2">
+              <p className="text-sm font-medium text-text-primary">{t.title}</p>
+              <time className="text-xs text-text-muted tabular-nums shrink-0" dateTime={t.treatmentAt}>
+                {new Date(t.treatmentAt).toLocaleDateString()}
+              </time>
+            </div>
+            <p className="text-xs text-text-secondary mt-1">Status: {t.status}</p>
+
+            {t.records.length > 0 && (
+              <ul className="mt-2 space-y-1.5 text-xs text-text-secondary">
+                {t.records.map((r) => (
+                  <li key={r.id}>
+                    <span className="text-text-primary font-medium">Record: </span>
+                    <span className="capitalize">{r.treatmentType}</span>
+                    {' | '}
+                    {r.teeth.length > 0 ? `Teeth ${[...r.teeth].sort().join(', ')}` : 'No teeth tagged'}
+                    {r.notes ? ` — ${r.notes}` : ''}
+                  </li>
+                ))}
+              </ul>
+            )}
+
+            {onSelectTreatment && (
+              <div className="mt-3 pt-2 border-t border-border/50 flex justify-end">
+                <button
+                  type="button"
+                  onClick={() => onSelectTreatment(t)}
+                  className="text-xs text-primary hover:underline focus:outline-none focus-visible:ring-2 focus-visible:ring-primary/35 rounded-[var(--radius-sm)] px-1"
+                >
+                  Review details
+                </button>
+              </div>
+            )}
+
+            {t.documents.length > 0 && (
+              <div className="mt-3 pt-2 border-t border-border/50">
+                <p className="text-[11px] uppercase tracking-wide text-text-muted mb-1.5">Attachments</p>
+                <ul className="space-y-1">
+                  {t.documents.map((doc) => (
+                    <li
+                      key={doc.id}
+                      className="flex items-center gap-2 text-xs text-text-secondary"
+                    >
+                      <FileText className="w-3.5 h-3.5 shrink-0 icon-flat" aria-hidden />
+                      <span className="truncate">{doc.fileName}</span>
+                      <span className="text-text-muted tabular-nums shrink-0">
+                        {(doc.sizeBytes / 1024).toFixed(1)} KB
+                      </span>
+                    </li>
+                  ))}
+                </ul>
+              </div>
+            )}
+          </article>
+        ))}
+      </div>
+    </div>
+  );
+}

frontend/src/components/ui/treatment/ToothGlyph.tsx

@@ -0,0 +1,105 @@
+'use client';
+
+import { memo, type ReactNode } from 'react';
+import type { FdiToothId } from '@/types/treatment';
+import type { ToothShapeKind } from '@/components/treatment/fdiToothMeta';
+import { getToothPathModel, type ToothPathModel } from '@/components/ui/treatment/toothPathModel';
+
+interface ToothGlyphProps {
+  fdi: FdiToothId;
+  kind: ToothShapeKind;
+  gradientId: string;
+  selected: boolean;
+  upper?: boolean;
+  mirrored?: boolean;
+  upsideDown?: boolean;
+  className?: string;
+}
+
+function filledSilhouette(
+  model: ToothPathModel,
+  crownFill: string,
+  rootFill: string,
+  stroke: string,
+  strokeW: number,
+): ReactNode {
+  return (
+    <>
+      <path d={model.crown} fill={crownFill} stroke={stroke} strokeWidth={strokeW} strokeLinejoin="round" />
+      {model.roots.map((d, i) => (
+        <path key={i} d={d} fill={rootFill} stroke={stroke} strokeWidth={strokeW} strokeLinejoin="round" />
+      ))}
+    </>
+  );
+}
+
+function detailOnly(model: ToothPathModel, stroke: string, strokeW: number): ReactNode {
+  if (!model.detailStroke) return null;
+  const { d, widthScale } = model.detailStroke;
+  return <path d={d} fill="none" stroke={stroke} strokeWidth={strokeW * widthScale} strokeLinecap="round" />;
+}
+
+function renderClinicalFill(model: ToothPathModel, selected: boolean, gradientId: string): ReactNode {
+  const stroke = selected ? 'var(--color-primary)' : '#1e293b';
+  const strokeW = selected ? 2.4 : 1.35;
+  const fill = `url(#${gradientId})`;
+  return (
+    <>
+      {filledSilhouette(model, fill, fill, stroke, strokeW)}
+      {detailOnly(model, stroke, strokeW)}
+    </>
+  );
+}
+/** FDI chart tooth: clinical gradient + roots only. */
+export const ToothGlyph = memo(function ToothGlyph({
+  fdi,
+  kind,
+  gradientId,
+  selected,
+  upper,
+  mirrored,
+  upsideDown,
+  className = 'w-8 h-[4.85rem]',
+}: ToothGlyphProps) {
+  const model: ToothPathModel | null = getToothPathModel(fdi, kind, upper);
+  const filter = selected ? 'drop-shadow(0 0 6px rgba(9, 169, 188, 0.65))' : undefined;
+
+  if (!model) {
+    return (
+      <svg viewBox="0 0 36 78" className={`${className} shrink-0`} aria-hidden>
+        <text x="4" y="40" fontSize="8" fill="currentColor" opacity="0.35">
+          ?
+        </text>
+      </svg>
+    );
+  }
+
+  const body = renderClinicalFill(model, selected, gradientId);
+
+  return (
+    <svg
+      viewBox="0 0 36 78"
+      className={`${className} shrink-0`}
+      style={{ filter }}
+      aria-hidden
+    >
+      <defs>
+        <radialGradient id={gradientId} cx="45%" cy="35%" r="65%">
+          <stop offset="0%" stopColor={selected ? '#cffafe' : '#ffffff'} />
+          <stop offset="55%" stopColor={selected ? '#5eead4' : '#e0f2fe'} />
+          <stop offset="100%" stopColor={selected ? '#0e7490' : '#93c5fd'} />
+        </radialGradient>
+      </defs>
+      <g
+        transform={[
+          mirrored ? 'translate(36 0) scale(-1 1)' : '',
+          upsideDown ? 'translate(0 78) scale(1 -1)' : '',
+        ]
+          .filter(Boolean)
+          .join(' ') || undefined}
+      >
+        {body}
+      </g>
+    </svg>
+  );
+});

frontend/src/components/ui/treatment/TreatmentWorkspace.tsx

@@ -0,0 +1,656 @@
+'use client';
+
+import { useCallback, useEffect, useMemo, useRef, useState } from 'react';
+import { AppointmentsStrip } from '@/components/ui/treatment/AppointmentsStrip';
+import { FdiToothChart } from '@/components/ui/treatment/FdiToothChart';
+import { PastTreatmentsPanel } from '@/components/ui/treatment/PastTreatmentsPanel';
+import { Checkbox } from '@/components/ui/common/Checkbox';
+import { Button } from '@/components/ui/common/Button';
+import { Dropdown } from '@/components/ui/common/Dropdown';
+import { SearchBar } from '@/components/ui/common/SearchBar';
+import { isSameLocalCalendarDay, startOfLocalDay } from '@/lib/appointmentTime';
+import {
+  fetchLinkedOrganizations,
+  fetchMyAppointmentsForDay,
+  fetchPastTreatments,
+  saveTreatmentDraft,
+  sendTreatmentRecord,
+} from '@/lib/mocks/treatmentMockApi';
+import { pickAutoAppointment } from '@/lib/treatmentSelection';
+import { canEditTreatment } from '@/shared/permissions';
+import type { Organization } from '@/types/organization';
+import type {
+  FdiToothId,
+  LinkedOrganizationOption,
+  PastTreatment,
+  TreatmentAppointment,
+  TreatmentAttachmentMeta,
+  TreatmentRecordDraft,
+} from '@/types/treatment';
+
+function newRecord(): TreatmentRecordDraft {
+  return {
+    clientId:
+      typeof crypto !== 'undefined' && 'randomUUID' in crypto
+        ? crypto.randomUUID()
+        : `rec-${Date.now()}-${Math.random().toString(36).slice(2, 9)}`,
+    treatmentType: 'consultation',
+    teeth: [],
+    comment: '',
+    attachmentMetas: [],
+    sendToOrganizationIds: [],
+    sentAt: null,
+  };
+}
+
+interface TreatmentWorkspaceProps {
+  userId: string;
+  currentOrganization: Organization | null;
+}
+
+export function TreatmentWorkspace({ userId, currentOrganization }: TreatmentWorkspaceProps) {
+  const canEdit = canEditTreatment(currentOrganization);
+
+  const [stripHidden, setStripHidden] = useState(false);
+
+  const scheduleMinDate = useMemo(() => startOfLocalDay(new Date()), []);
+
+  const [selectedDay, setSelectedDay] = useState(() => startOfLocalDay(new Date()));
+  const [appointments, setAppointments] = useState<TreatmentAppointment[]>([]);
+  const [apptsLoading, setApptsLoading] = useState(false);
+  const [selectionLocked, setSelectionLocked] = useState(false);
+  const [selectedAppointmentId, setSelectedAppointmentId] = useState<string | null>(null);
+
+  const [history, setHistory] = useState<PastTreatment[]>([]);
+  const [historyLoading, setHistoryLoading] = useState(false);
+
+  const [orgs, setOrgs] = useState<LinkedOrganizationOption[]>([]);
+
+  const [records, setRecords] = useState<TreatmentRecordDraft[]>(() => [newRecord()]);
+  const [activeRecordId, setActiveRecordId] = useState<string>(() => records[0].clientId);
+
+  const selectionLockedRef = useRef(selectionLocked);
+  selectionLockedRef.current = selectionLocked;
+
+  const attachmentInputRef = useRef<HTMLInputElement>(null);
+
+  const [saveBusy, setSaveBusy] = useState(false);
+  const [sendBusyId, setSendBusyId] = useState<string | null>(null);
+  const [banner, setBanner] = useState<string | null>(null);
+  const [organizationSearch, setOrganizationSearch] = useState('');
+  const [recentOrganizationIds, setRecentOrganizationIds] = useState<string[]>([]);
+  const [reviewTreatment, setReviewTreatment] = useState<PastTreatment | null>(null);
+
+  const selectedAppointment = useMemo(
+    () => appointments.find((a) => a.id === selectedAppointmentId) ?? null,
+    [appointments, selectedAppointmentId],
+  );
+
+  const activeRecord = useMemo(
+    () => records.find((r) => r.clientId === activeRecordId) ?? records[0],
+    [records, activeRecordId],
+  );
+
+  const selectedTeethSet = useMemo(() => new Set(activeRecord.teeth), [activeRecord.teeth]);
+  const activeLinkedOrganizations = useMemo(() => orgs.filter((o) => o.active), [orgs]);
+  const filteredOrganizations = useMemo(() => {
+    const q = organizationSearch.trim().toLowerCase();
+    if (!q) return activeLinkedOrganizations;
+    return activeLinkedOrganizations.filter((o) => o.name.toLowerCase().includes(q));
+  }, [organizationSearch, activeLinkedOrganizations]);
+  const recentOrganizations = useMemo(() => {
+    if (recentOrganizationIds.length === 0) return [];
+    const recentSet = new Set(recentOrganizationIds);
+    return activeLinkedOrganizations
+      .filter((o) => recentSet.has(o.id))
+      .sort((a, b) => recentOrganizationIds.indexOf(a.id) - recentOrganizationIds.indexOf(b.id))
+      .slice(0, 3);
+  }, [recentOrganizationIds, activeLinkedOrganizations]);
+  const currentDraftPreview = useMemo<PastTreatment | null>(() => {
+    if (!selectedAppointment) return null;
+    return {
+      id: 'current-draft',
+      patientId: selectedAppointment.patientId,
+      title: `Current draft for ${selectedAppointment.patientFirstName} ${selectedAppointment.patientLastName}`,
+      treatmentAt: new Date().toISOString(),
+      status: 'draft',
+      records: records.map((r, idx) => ({
+        id: r.clientId || `draft-${idx + 1}`,
+        treatmentType: r.treatmentType,
+        teeth: r.teeth,
+        notes: r.comment || null,
+      })),
+      documents: records.flatMap((r) => r.attachmentMetas),
+    };
+  }, [records, selectedAppointment]);
+
+  const treatmentTypeTextColor = useMemo(() => {
+    const map: Record<TreatmentRecordDraft['treatmentType'], string> = {
+      consultation: '#ddd6fe',
+      filling: '#fed7aa',
+      endo: '#fecaca',
+      visit: '#bae6fd',
+      hygiene: '#d9f99d',
+    };
+    return map[activeRecord.treatmentType];
+  }, [activeRecord.treatmentType]);
+
+  useEffect(() => {
+    setSelectionLocked(false);
+  }, [selectedDay]);
+
+  useEffect(() => {
+    let cancelled = false;
+    setApptsLoading(true);
+    void (async () => {
+      try {
+        const list = await fetchMyAppointmentsForDay(userId, selectedDay);
+        if (cancelled) return;
+        setAppointments(list);
+        if (!selectionLockedRef.current) {
+          setSelectedAppointmentId(pickAutoAppointment(list, selectedDay));
+        }
+      } finally {
+        if (!cancelled) setApptsLoading(false);
+      }
+    })();
+    return () => {
+      cancelled = true;
+    };
+  }, [userId, selectedDay]);
+
+  useEffect(() => {
+    const today = startOfLocalDay(new Date());
+    if (!isSameLocalCalendarDay(selectedDay, today) || selectionLocked) return;
+
+    const id = window.setInterval(() => {
+      setSelectedAppointmentId((prev) => {
+        const next = pickAutoAppointment(appointments, selectedDay);
+        return next ?? prev;
+      });
+    }, 60_000);
+
+    return () => window.clearInterval(id);
+  }, [selectedDay, appointments, selectionLocked]);
+
+  useEffect(() => {
+    let cancelled = false;
+    void (async () => {
+      const list = await fetchLinkedOrganizations();
+      if (!cancelled) setOrgs(list);
+    })();
+    return () => {
+      cancelled = true;
+    };
+  }, []);
+
+  useEffect(() => {
+    if (!selectedAppointment) {
+      setHistory([]);
+      return;
+    }
+    let cancelled = false;
+    setHistoryLoading(true);
+    void (async () => {
+      const items = await fetchPastTreatments(selectedAppointment.patientId);
+      if (!cancelled) {
+        setHistory(items);
+        setHistoryLoading(false);
+      }
+    })();
+    return () => {
+      cancelled = true;
+    };
+  }, [selectedAppointment?.patientId]);
+
+  useEffect(() => {
+    const first = newRecord();
+    setRecords([first]);
+    setActiveRecordId(first.clientId);
+    setOrganizationSearch('');
+    setReviewTreatment(null);
+  }, [selectedAppointment?.id]);
+
+  const fixActiveAfterRecordsChange = useCallback((next: TreatmentRecordDraft[]) => {
+    setRecords(next);
+    setActiveRecordId((id) => (next.some((r) => r.clientId === id) ? id : next[0].clientId));
+  }, []);
+
+  const toggleTooth = useCallback(
+    (fdi: FdiToothId) => {
+      if (!canEdit) return;
+      setRecords((prev) =>
+        prev.map((r) => {
+          if (r.clientId !== activeRecordId) return r;
+          const set = new Set(r.teeth);
+          if (set.has(fdi)) set.delete(fdi);
+          else set.add(fdi);
+          return { ...r, teeth: [...set].sort() as FdiToothId[] };
+        }),
+      );
+    },
+    [activeRecordId, canEdit],
+  );
+
+  const onPickAppointment = useCallback((id: string) => {
+    setSelectionLocked(true);
+    setSelectedAppointmentId(id);
+  }, []);
+
+  const addAttachments = useCallback(
+    (files: FileList | null) => {
+      if (!files?.length || !canEdit) return;
+      setRecords((prev) =>
+        prev.map((r) => {
+          if (r.clientId !== activeRecordId) return r;
+          const added: TreatmentAttachmentMeta[] = [...r.attachmentMetas];
+          for (let i = 0; i < files.length; i++) {
+            const f = files[i];
+            added.push({
+              id: `local-${Date.now()}-${i}-${Math.random().toString(36).slice(2, 7)}`,
+              fileName: f.name,
+              mimeType: f.type || 'application/octet-stream',
+              sizeBytes: f.size,
+            });
+          }
+          return { ...r, attachmentMetas: added };
+        }),
+      );
+    },
+    [activeRecordId, canEdit],
+  );
+
+  const handleSaveAll = useCallback(async () => {
+    if (!canEdit || !selectedAppointment) return;
+    setSaveBusy(true);
+    setBanner(null);
+    try {
+      await saveTreatmentDraft({
+        appointmentId: selectedAppointment.id,
+        patientId: selectedAppointment.patientId,
+        records: records.map(({ clientId: _c, sentAt: _s, ...rest }) => rest),
+      });
+      setBanner('Treatment draft saved (mock). You can send records later.');
+    } finally {
+      setSaveBusy(false);
+    }
+  }, [canEdit, selectedAppointment, records]);
+
+  const handleSendRecord = useCallback(
+    async (record: TreatmentRecordDraft) => {
+      if (!canEdit || !selectedAppointment) return;
+      const targets = record.sendToOrganizationIds.filter((id) =>
+        orgs.some((o) => o.id === id && o.active),
+      );
+      if (targets.length === 0) {
+        setBanner('Choose at least one active organization to send this record.');
+        return;
+      }
+      setSendBusyId(record.clientId);
+      setBanner(null);
+      try {
+        await sendTreatmentRecord({
+          appointmentId: selectedAppointment.id,
+          patientId: selectedAppointment.patientId,
+          recordClientId: record.clientId,
+          organizationIds: targets,
+        });
+        setRecords((prev) =>
+          prev.map((r) =>
+            r.clientId === record.clientId ? { ...r, sentAt: new Date().toISOString() } : r,
+          ),
+        );
+        setRecentOrganizationIds((prev) => {
+          const next = [...record.sendToOrganizationIds.filter((id) => id && !prev.includes(id)), ...prev];
+          return next.slice(0, 10);
+        });
+        setBanner('Record sent to selected organizations (mock).');
+      } finally {
+        setSendBusyId(null);
+      }
+    },
+    [canEdit, selectedAppointment, orgs],
+  );
+
+  if (!canEdit) {
+    return (
+      <div className="surface-card p-6 max-w-xl">
+        <h2 className="text-lg font-semibold text-text-primary">Treatment workspace</h2>
+        <p className="text-sm text-text-secondary mt-2">
+          Your role can view the Treatment tab, but editing clinical workflows requires{' '}
+          <span className="text-text-primary font-medium">Treatment edit</span> permission.
+        </p>
+      </div>
+    );
+  }
+
+  return (
+    <div className="space-y-6">
+      <header className="space-y-1">
+        <h1 className="text-2xl font-semibold text-text-primary">Treatment</h1>
+        <p className="text-sm text-text-secondary">
+          Mocked data — appointments, history, save, and send are simulated until backend endpoints exist.
+        </p>
+      </header>
+
+      <AppointmentsStrip
+        stripHidden={stripHidden}
+        onToggleStripHidden={() => setStripHidden((s) => !s)}
+        selectedDay={selectedDay}
+        onSelectDay={setSelectedDay}
+        minScheduleDate={scheduleMinDate}
+        appointments={appointments}
+        selectedAppointmentId={selectedAppointmentId}
+        onSelectAppointment={onPickAppointment}
+        loading={apptsLoading}
+      />
+
+      {banner && (
+        <div className="rounded-[var(--radius-md)] border border-primary/40 bg-primary-soft px-4 py-2 text-sm text-text-primary">
+          {banner}
+        </div>
+      )}
+
+      <div className="grid grid-cols-1 xl:grid-cols-[minmax(280px,380px)_minmax(0,1fr)] gap-6 items-start">
+        <div className="space-y-4">
+          {selectedAppointment ? (
+            <div className="surface-card p-4 space-y-1">
+              <p className="text-xs uppercase tracking-wide text-text-muted">Selected patient</p>
+              <p className="text-lg font-semibold text-text-primary">
+                {selectedAppointment.patientFirstName} {selectedAppointment.patientLastName}
+              </p>
+              <p className="text-xs text-text-secondary">
+                Appointment purpose:{' '}
+                <span className="capitalize text-text-primary">{selectedAppointment.purpose}</span>
+              </p>
+            </div>
+          ) : (
+            <div className="surface-card p-4 text-sm text-text-muted">
+              {apptsLoading ? 'Loading appointments…' : 'Select a day with at least one appointment.'}
+            </div>
+          )}
+
+          <PastTreatmentsPanel
+            items={history}
+            loading={historyLoading}
+            selectedTreatmentId={reviewTreatment?.id ?? null}
+            onSelectTreatment={setReviewTreatment}
+          />
+          <div className="surface-card p-4 space-y-3">
+            <div className="flex items-center justify-between gap-2">
+              <h3 className="text-sm font-semibold text-text-primary">Treatment review</h3>
+              <Button
+                type="button"
+                variant="primary"
+                disabled={!selectedAppointment}
+                onClick={() => setReviewTreatment(currentDraftPreview)}
+              >
+                Preview current treatment
+              </Button>
+            </div>
+            {!reviewTreatment && (
+              <p className="text-sm text-text-muted">
+                Select a treatment from history, or preview the current draft.
+              </p>
+            )}
+            {reviewTreatment && (
+              <div className="border border-border/70 rounded-[var(--radius-md)] p-3 bg-background-secondary/40 space-y-2">
+                <div className="flex items-start justify-between gap-2">
+                  <p className="text-sm font-medium text-text-primary">{reviewTreatment.title}</p>
+                  <span className="text-xs text-text-muted tabular-nums">
+                    {new Date(reviewTreatment.treatmentAt).toLocaleDateString()}
+                  </span>
+                </div>
+                <p className="text-xs text-text-secondary capitalize">Status: {reviewTreatment.status}</p>
+                <div className="space-y-2">
+                  {reviewTreatment.records.map((r, idx) => (
+                    <div key={r.id} className="rounded-[var(--radius-sm)] border border-border/60 px-2.5 py-2">
+                      <p className="text-xs text-text-primary font-medium">Record {idx + 1}</p>
+                      <p className="text-xs text-text-secondary capitalize mt-1">
+                        Type: {r.treatmentType}
+                      </p>
+                      <p className="text-xs text-text-secondary">
+                        Teeth: {r.teeth.length ? [...r.teeth].sort().join(', ') : 'None selected'}
+                      </p>
+                      {r.notes && <p className="text-xs text-text-muted mt-1">Notes: {r.notes}</p>}
+                    </div>
+                  ))}
+                </div>
+                <p className="text-xs text-text-muted">
+                  Attachments: {reviewTreatment.documents.length}
+                </p>
+              </div>
+            )}
+          </div>
+        </div>
+
+        <div className="space-y-4 min-w-0">
+          <FdiToothChart
+            selected={selectedTeethSet}
+            onToggle={toggleTooth}
+            disabled={!selectedAppointment}
+          />
+
+          <div className="surface-card p-4 space-y-4">
+            <div className="flex flex-wrap items-center justify-between gap-3">
+              <div>
+                <h3 className="text-sm font-semibold text-text-primary">Treatment records</h3>
+                <p className="text-xs text-text-muted mt-0.5">
+                  Each record has its own teeth, notes, attachments, and destinations for send.
+                </p>
+              </div>
+              <Button
+                type="button"
+                variant="primary"
+                disabled={!selectedAppointment}
+                onClick={() => {
+                  const nr = newRecord();
+                  fixActiveAfterRecordsChange([...records, nr]);
+                  setActiveRecordId(nr.clientId);
+                }}
+              >
+                Add record
+              </Button>
+            </div>
+
+            <div className="flex flex-wrap gap-2">
+              {records.map((r, idx) => (
+                <button
+                  key={r.clientId}
+                  type="button"
+                  onClick={() => setActiveRecordId(r.clientId)}
+                  className={`
+                    rounded-[var(--radius-md)] border px-3 py-1.5 text-sm transition-colors
+                    focus:outline-none focus-visible:ring-2 focus-visible:ring-primary/45
+                    ${
+                      r.clientId === activeRecordId
+                        ? 'border-primary bg-primary-soft font-medium text-text-primary'
+                        : 'border-border/70 text-text-secondary hover:border-border hover:bg-background-card/50'
+                    }
+                  `}
+                >
+                  Record {idx + 1}
+                  {r.sentAt ? ' · sent' : ''}
+                </button>
+              ))}
+            </div>
+
+            {activeRecord && (
+              <div className="space-y-4 border border-border/60 rounded-[var(--radius-md)] p-4 bg-background-secondary/30">
+                <label className="block text-xs font-medium text-text-secondary">
+                  Comments
+                  <textarea
+                    value={activeRecord.comment}
+                    onChange={(e) => {
+                      const v = e.target.value;
+                      setRecords((prev) =>
+                        prev.map((r) =>
+                          r.clientId === activeRecordId ? { ...r, comment: v } : r,
+                        ),
+                      );
+                    }}
+                    placeholder="Write clinical notes for this record…"
+                    rows={5}
+                    disabled={!selectedAppointment}
+                    className="mt-1.5 w-full rounded-[var(--radius-md)] border border-border bg-background-secondary/90 text-text-primary text-sm px-3 py-2 placeholder:text-text-muted focus:outline-none focus:ring-2 focus:ring-primary/35 resize-y min-h-[120px]"
+                  />
+                </label>
+
+                <div>
+                  <Dropdown
+                    label="Treatment type"
+                    value={activeRecord.treatmentType}
+                    onChange={(e) => {
+                      const nextType = e.target.value as TreatmentRecordDraft['treatmentType'];
+                      setRecords((prev) =>
+                        prev.map((r) =>
+                          r.clientId === activeRecordId ? { ...r, treatmentType: nextType } : r,
+                        ),
+                      );
+                    }}
+                    disabled={!selectedAppointment}
+                    className="capitalize"
+                    style={{ color: treatmentTypeTextColor }}
+                  >
+                    <option value="consultation" style={{ color: '#ddd6fe', backgroundColor: '#14253d' }} className="capitalize">consultation</option>
+                    <option value="filling" style={{ color: '#fed7aa', backgroundColor: '#14253d' }} className="capitalize">filling</option>
+                    <option value="endo" style={{ color: '#fecaca', backgroundColor: '#14253d' }} className="capitalize">endo</option>
+                    <option value="visit" style={{ color: '#bae6fd', backgroundColor: '#14253d' }} className="capitalize">visit</option>
+                    <option value="hygiene" style={{ color: '#d9f99d', backgroundColor: '#14253d' }} className="capitalize">hygiene</option>
+                  </Dropdown>
+                </div>
+
+                <div>
+                  <p className="text-xs font-medium text-text-secondary mb-2">Attachments (mock)</p>
+                  <input
+                    ref={attachmentInputRef}
+                    id="treatment-record-attachments"
+                    type="file"
+                    multiple
+                    disabled={!selectedAppointment}
+                    onChange={(e) => {
+                      addAttachments(e.target.files);
+                      e.target.value = '';
+                    }}
+                    className="sr-only"
+                    aria-label="Attach files for this treatment record"
+                  />
+                  <Button
+                    type="button"
+                    variant="primary"
+                    disabled={!selectedAppointment}
+                    onClick={() => attachmentInputRef.current?.click()}
+                    aria-controls="treatment-record-attachments"
+                  >
+                    Choose files
+                  </Button>
+                  {activeRecord.attachmentMetas.length > 0 && (
+                    <ul className="mt-2 space-y-1 text-xs text-text-muted">
+                      {activeRecord.attachmentMetas.map((f) => (
+                        <li key={f.id} className="truncate">
+                          {f.fileName} ({(f.sizeBytes / 1024).toFixed(1)} KB)
+                        </li>
+                      ))}
+                    </ul>
+                  )}
+                </div>
+
+                <div>
+                  <p className="text-xs font-medium text-text-secondary mb-2">
+                    Send this record to linked organizations
+                  </p>
+                  <div className="space-y-2 mb-2">
+                    <SearchBar
+                      value={organizationSearch}
+                      onChange={setOrganizationSearch}
+                      placeholder="Search active organizations..."
+                    />
+                    {recentOrganizations.length > 0 && (
+                      <div className="flex flex-wrap items-center gap-2">
+                        <span className="text-xs text-text-muted">Recent:</span>
+                        {recentOrganizations.map((o) => (
+                          <button
+                            key={o.id}
+                            type="button"
+                            onClick={() => {
+                              setRecords((prev) =>
+                                prev.map((r) => {
+                                  if (r.clientId !== activeRecordId || r.sentAt) return r;
+                                  if (r.sendToOrganizationIds.includes(o.id)) return r;
+                                  return { ...r, sendToOrganizationIds: [...r.sendToOrganizationIds, o.id] };
+                                }),
+                              );
+                            }}
+                            className="text-xs rounded-[var(--radius-sm)] border border-border/70 px-2 py-1 text-text-secondary hover:text-text-primary hover:border-border focus:outline-none focus-visible:ring-2 focus-visible:ring-primary/35"
+                          >
+                            {o.name}
+                          </button>
+                        ))}
+                      </div>
+                    )}
+                  </div>
+                  <div className="flex flex-col gap-2">
+                    {filteredOrganizations.map((o) => (
+                      <Checkbox
+                        key={o.id}
+                        checked={activeRecord.sendToOrganizationIds.includes(o.id)}
+                        disabled={!selectedAppointment || Boolean(activeRecord.sentAt)}
+                        onChange={(checked) => {
+                          setRecords((prev) =>
+                            prev.map((r) => {
+                              if (r.clientId !== activeRecordId) return r;
+                              const next = new Set(r.sendToOrganizationIds);
+                              if (checked) next.add(o.id);
+                              else next.delete(o.id);
+                              return { ...r, sendToOrganizationIds: [...next] };
+                            }),
+                          );
+                        }}
+                        label={`${o.name}${o.active ? '' : ' (inactive)'}`}
+                      />
+                    ))}
+                    {filteredOrganizations.length === 0 && (
+                      <p className="text-xs text-text-muted">No active organization matches your search.</p>
+                    )}
+                  </div>
+                </div>
+
+                <div className="flex flex-wrap items-center gap-3 pt-1">
+                  <Button
+                    type="button"
+                    variant="primary"
+                    disabled={!selectedAppointment || Boolean(activeRecord.sentAt) || sendBusyId === activeRecord.clientId}
+                    isLoading={sendBusyId === activeRecord.clientId}
+                    onClick={() => void handleSendRecord(activeRecord)}
+                  >
+                    Send this record
+                  </Button>
+                  {activeRecord.sentAt && (
+                    <span className="text-xs text-text-muted">
+                      Sent at {new Date(activeRecord.sentAt).toLocaleString()}
+                    </span>
+                  )}
+                </div>
+              </div>
+            )}
+
+            <div className="flex flex-wrap gap-3 pt-2 border-t border-border/60">
+              <Button
+                type="button"
+                variant="primary"
+                disabled={!selectedAppointment || saveBusy}
+                isLoading={saveBusy}
+                onClick={() => void handleSaveAll()}
+              >
+                Save treatment draft
+              </Button>
+              <p className="text-xs text-text-muted self-center">
+                Saving stores all records locally (mock). Sending is per record and can happen after save.
+              </p>
+            </div>
+          </div>
+        </div>
+      </div>
+    </div>
+  );
+}

frontend/src/components/ui/treatment/toothPathModel.ts

@@ -0,0 +1,113 @@
+import type { FdiToothId } from '@/types/treatment';
+import type { ToothShapeKind } from '@/components/treatment/fdiToothMeta';
+
+export interface ToothPathModel {
+  crown: string;
+  roots: string[];
+  /** Occlusal groove etc. — open path, stroke only */
+  detailStroke?: { d: string; widthScale: number };
+}
+
+/** FDI-specific closed paths for the clinical (gradient + roots) chart. */
+export function getToothPathModel(fdi: FdiToothId, kind: ToothShapeKind, upper?: boolean): ToothPathModel | null {
+  const lastDigit = Number(fdi[1]);
+  const isThirdMolar = lastDigit === 8;
+  const isSecondMolar = lastDigit === 7;
+  const isFirstMolar = lastDigit === 6;
+  const isCentralIncisor = lastDigit === 1;
+  const isLateralIncisor = lastDigit === 2;
+
+  switch (kind) {
+    case 'incisor':
+      if (isLateralIncisor) {
+        return {
+          crown: 'M12 9 C14 6, 22 6, 24 9 C26 12, 26 25, 23 30 C21 32, 15 32, 13 30 C10 25, 10 12, 12 9 Z',
+          roots: ['M15.5 30 C14.5 40, 14.5 51, 16 60 C17 65, 19 65, 20 60 C21.5 51, 21.5 40, 20.5 30 Z'],
+        };
+      }
+      return {
+        crown: 'M11 8 C13 5, 23 5, 25 8 C27 12, 27 26, 24 31 C22 33, 14 33, 12 31 C9 26, 9 12, 11 8 Z',
+        roots: ['M15 31 C14 42, 14 53, 16 63 C17 68, 19 68, 20 63 C22 53, 22 42, 21 31 Z'],
+      };
+    case 'canine':
+      return {
+        crown: 'M18 6 C22 6, 25 10, 26 15 C26 20, 24 30, 22 33 C20 35, 16 35, 14 33 C12 30, 10 20, 10 15 C11 10, 14 6, 18 6 Z',
+        roots: ['M16 33 C14 44, 13 55, 14 66 C15 72, 18 75, 20 66 C21 55, 20 44, 20 33 Z'],
+      };
+    case 'premolar':
+      if (upper && lastDigit === 4) {
+        return {
+          crown: 'M9 12 C11 8, 15 7, 18 9 C21 7, 25 8, 27 12 C29 16, 29 25, 26 31 C24 34, 12 34, 10 31 C7 25, 7 16, 9 12 Z',
+          roots: [
+            'M13 31 C12 39, 12 48, 13 56 C14 62, 16 64, 17 58 C18 54, 18 48, 18 41 Z',
+            'M23 31 C24 39, 24 48, 23 56 C22 62, 20 64, 19 58 C18 54, 18 48, 18 41 Z',
+          ],
+        };
+      }
+      return {
+        crown: 'M9 12 C11 8, 15 7, 18 9 C21 7, 25 8, 27 12 C29 16, 29 26, 26 31 C24 34, 12 34, 10 31 C7 26, 7 16, 9 12 Z',
+        roots: ['M16 31 C15 42, 15 53, 16 62 C17 67, 19 67, 20 62 C21 53, 21 42, 20 31 Z'],
+      };
+    case 'molar':
+      if (isThirdMolar) {
+        const crown =
+          'M9 15 C11 11, 14 10, 17 11 C20 9, 24 10, 26 14 C28 18, 28 26, 25 31 C23 33, 11 33, 9 31 C6 26, 6 19, 9 15 Z';
+        if (upper) {
+          return {
+            crown,
+            roots: [
+              'M14 32 C13 39, 13 47, 14 54 C15 59, 17 61, 18 55 C19 50, 19 41, 18 33 Z',
+              'M22 32 C23 39, 23 47, 22 54 C21 59, 19 61, 18 55 C17 50, 17 41, 18 33 Z',
+            ],
+          };
+        }
+        return {
+          crown,
+          roots: [
+            'M14 32 C12 39, 12 47, 13 55 C14 61, 16 64, 18 57 C19 52, 19 44, 18 36 Z',
+            'M22 32 C24 39, 24 47, 23 55 C22 61, 20 64, 18 57 C17 52, 17 44, 18 36 Z',
+          ],
+        };
+      }
+      if (isSecondMolar && upper) {
+        return {
+          crown: 'M8 14 C10 9, 13 8, 16 10 C18 8, 21 8, 23 10 C26 8, 29 9, 30 14 C31 18, 31 27, 28 32 C26 35, 10 35, 8 32 C5 27, 5 18, 8 14 Z',
+          roots: [
+            'M11 35 C9 43, 9 50, 10 57 C11 62, 13 64, 14 58 C15 52, 15 44, 14 36 Z',
+            'M18 35 C17 44, 17 52, 18 60 C19 66, 20 66, 21 60 C22 52, 22 44, 21 35 Z',
+            'M25 35 C27 43, 27 50, 26 57 C25 62, 23 64, 22 58 C21 52, 21 44, 22 36 Z',
+          ],
+        };
+      }
+      if (isFirstMolar && !upper) {
+        return {
+          crown: 'M7 14 C9 9, 13 8, 16 10 C18 8, 21 8, 23 10 C26 8, 30 9, 31 14 C32 18, 32 27, 29 32 C27 35, 9 35, 7 32 C4 27, 4 18, 7 14 Z',
+          roots: [
+            'M11 35 C9 43, 9 50, 10 58 C11 64, 14 67, 16 60 C17 56, 17 50, 17 44 Z',
+            'M25 35 C27 43, 27 50, 26 58 C25 64, 22 67, 20 60 C19 56, 19 50, 19 44 Z',
+          ],
+          detailStroke: { d: 'M15 61 Q18 66 21 61', widthScale: 0.85 },
+        };
+      }
+      if (upper) {
+        return {
+          crown: 'M7 14 C9 9, 13 8, 16 10 C18 8, 21 8, 23 10 C26 8, 30 9, 31 14 C32 18, 32 27, 29 32 C27 35, 9 35, 7 32 C4 27, 4 18, 7 14 Z',
+          roots: [
+            'M11 35 C9 43, 9 50, 10 57 C11 62, 13 64, 14 58 C15 52, 15 44, 14 36 Z',
+            'M18 35 C17 44, 17 52, 18 60 C19 66, 20 66, 21 60 C22 52, 22 44, 21 35 Z',
+            'M25 35 C27 43, 27 50, 26 57 C25 62, 23 64, 22 58 C21 52, 21 44, 22 36 Z',
+          ],
+        };
+      }
+      return {
+        crown: 'M7 14 C9 9, 13 8, 16 10 C18 8, 21 8, 23 10 C26 8, 30 9, 31 14 C32 18, 32 27, 29 32 C27 35, 9 35, 7 32 C4 27, 4 18, 7 14 Z',
+        roots: [
+          'M11 35 C9 43, 9 50, 10 58 C11 64, 14 67, 16 60 C17 56, 17 50, 17 44 Z',
+          'M25 35 C27 43, 27 50, 26 58 C25 64, 22 67, 20 60 C19 56, 19 50, 19 44 Z',
+        ],
+        detailStroke: { d: 'M15 61 Q18 66 21 61', widthScale: 0.85 },
+      };
+    default:
+      return null;
+  }
+}

frontend/src/lib/api/appointments.ts

@@ -0,0 +1,32 @@
+import { apiClient } from './client';
+import type { AppointmentColumnProvider, AppointmentRecord } from '@/types/appointment';
+
+export interface CreateAppointmentBody {
+  patientId: string;
+  providerUserId: string;
+  startAt: string;
+  endAt: string;
+  purpose: string;
+}
+
+export const appointmentsApi = {
+  columnProviders: async (): Promise<{ success: boolean; data: AppointmentColumnProvider[] }> => {
+    const response = await apiClient.get('/appointments/column-providers');
+    return response.data;
+  },
+
+  list: async (params: { from: string; to: string }): Promise<{ success: boolean; data: AppointmentRecord[] }> => {
+    const response = await apiClient.get('/appointments', { params });
+    return response.data;
+  },
+
+  create: async (body: CreateAppointmentBody): Promise<{ success: boolean; data: AppointmentRecord }> => {
+    const response = await apiClient.post('/appointments', body);
+    return response.data;
+  },
+
+  remove: async (id: string): Promise<{ success: boolean }> => {
+    const response = await apiClient.delete(`/appointments/${id}`);
+    return response.data;
+  },
+};

frontend/src/lib/api/organization.ts

@@ -0,0 +1,115 @@
+import { apiClient } from './client';
+
+export interface CounterpartSearchResultDto {
+  id: string;
+  name: string;
+  email: string;
+  phone: string | null;
+  owner: { email: string; name: string };
+}
+
+export interface CounterpartItemDto {
+  id: string;
+  requestedByOrganizationId: string | null;
+  counterpartOrganizationId: string | null;
+  organizationName: string;
+  ownerEmail: string;
+  phone: string | null;
+  status: 'PENDING' | 'ACTIVE' | 'REJECTED' | 'EXPIRED';
+  createdAt: string;
+  acceptedAt: string | null;
+}
+
+export interface OrganizationInvitationHistoryItemDto {
+  id: string;
+  organizationName: string;
+  ownerEmail: string;
+  status: 'PENDING' | 'ACTIVE' | 'REJECTED' | 'EXPIRED';
+  createdAt: string;
+  acceptedAt: string | null;
+}
+
+export const organizationApi = {
+  search: async (q: string): Promise<{ success: boolean; data: CounterpartSearchResultDto[] }> => {
+    const response = await apiClient.get(`/organizations/search?q=${encodeURIComponent(q)}`);
+    return response.data;
+  },
+
+  list: async (): Promise<{ success: boolean; data: { items: CounterpartItemDto[] } }> => {
+    const response = await apiClient.get('/organizations/links');
+    return response.data;
+  },
+
+  listInvitations: async (): Promise<{
+    success: boolean;
+    data: { items: OrganizationInvitationHistoryItemDto[] };
+  }> => {
+    const response = await apiClient.get('/organizations/invitations');
+    return response.data;
+  },
+
+  createLink: async (
+    targetOrganizationId: string,
+  ): Promise<{ success: boolean; data: { id: string; status: 'PENDING' | 'ACTIVE' | 'REJECTED' } }> => {
+    const response = await apiClient.post('/organizations/links', { targetOrganizationId });
+    return response.data;
+  },
+
+  respondLink: async (
+    linkId: string,
+    action: 'ACCEPT' | 'REJECT',
+  ): Promise<{ success: boolean; data: { id: string; status: 'PENDING' | 'ACTIVE' | 'REJECTED' } }> => {
+    const response = await apiClient.patch(`/organizations/links/${linkId}/respond`, { action });
+    return response.data;
+  },
+
+  deleteLink: async (linkId: string): Promise<{ success: boolean; data: { id: string }; message: string }> => {
+    const response = await apiClient.delete(`/organizations/links/${linkId}`);
+    return response.data;
+  },
+
+  invite: async (body: {
+    organizationName: string;
+    ownerEmail: string;
+    phone?: string;
+  }): Promise<{ success: boolean; data: { invitationId: string; invitationUrl: string; status: 'PENDING' } }> => {
+    const response = await apiClient.post('/organizations/invite', body);
+    return response.data;
+  },
+
+  getInvitationLink: async (
+    invitationId: string,
+  ): Promise<{ success: boolean; data: { invitationId: string; invitationUrl: string } }> => {
+    const response = await apiClient.post(`/organizations/invitations/${invitationId}/link`);
+    return response.data;
+  },
+
+  previewInvite: async (
+    token: string,
+  ): Promise<{
+    success: boolean;
+    data: {
+      ownerEmail: string;
+      organizationName: string;
+      organizationType: 'CLINIC' | 'LAB';
+      inviterOrganizationName: string;
+      expiresAt: string;
+      status: 'PENDING' | 'ACCEPTED';
+    };
+  }> => {
+    const response = await apiClient.get(
+      `/organizations/invitations/preview?token=${encodeURIComponent(token)}`,
+    );
+    return response.data;
+  },
+
+  acceptInvite: async (body: {
+    token: string;
+    organizationName: string;
+    ownerName: string;
+    password: string;
+  }): Promise<{ success: boolean; message: string; data: { organizationId: string } }> => {
+    const response = await apiClient.post('/organizations/invitations/accept', body);
+    return response.data;
+  },
+};

frontend/src/lib/appointmentTime.ts

@@ -0,0 +1,63 @@
+/** Normalize to local midnight; invalid input falls back to today. */
+export function startOfLocalDay(d: Date): Date {
+  if (Number.isNaN(d.getTime())) {
+    const t = new Date();
+    return new Date(t.getFullYear(), t.getMonth(), t.getDate(), 0, 0, 0, 0);
+  }
+  return new Date(d.getFullYear(), d.getMonth(), d.getDate(), 0, 0, 0, 0);
+}
+
+/** Local calendar bounds for a date (browser timezone). */
+export function getLocalDayIsoRange(day: Date): { from: string; to: string } {
+  const start = startOfLocalDay(day);
+  const end = new Date(start.getFullYear(), start.getMonth(), start.getDate() + 1, 0, 0, 0, 0);
+  return { from: start.toISOString(), to: end.toISOString() };
+}
+
+export function toDateInputValue(d: Date): string {
+  const y = d.getFullYear();
+  const m = String(d.getMonth() + 1).padStart(2, '0');
+  const day = String(d.getDate()).padStart(2, '0');
+  return `${y}-${m}-${day}`;
+}
+
+export function parseDateInput(value: string): Date {
+  const [y, m, d] = value.split('-').map(Number);
+  return new Date(y, m - 1, d, 0, 0, 0, 0);
+}
+
+export function combineLocalDateAndTime(day: Date, timeHHmm: string): Date {
+  const [h, min] = timeHHmm.split(':').map(Number);
+  return new Date(day.getFullYear(), day.getMonth(), day.getDate(), h, min, 0, 0);
+}
+
+export function formatTimeForInput(d: Date): string {
+  const h = String(d.getHours()).padStart(2, '0');
+  const m = String(d.getMinutes()).padStart(2, '0');
+  return `${h}:${m}`;
+}
+
+export function isSameLocalCalendarDay(a: Date, b: Date): boolean {
+  return (
+    a.getFullYear() === b.getFullYear() &&
+    a.getMonth() === b.getMonth() &&
+    a.getDate() === b.getDate()
+  );
+}
+
+export function formatHourLabel(hour: number): string {
+  const d = new Date(2000, 0, 1, hour, 0, 0, 0);
+  return d.toLocaleTimeString(undefined, { hour: 'numeric', hour12: true });
+}
+
+/** Local midnight + delta calendar days. */
+export function addCalendarDays(day: Date, delta: number): Date {
+  return new Date(day.getFullYear(), day.getMonth(), day.getDate() + delta, 0, 0, 0, 0);
+}
+
+/** Compare two calendar days at local midnight (ordering by date only). */
+export function compareLocalDayStart(a: Date, b: Date): number {
+  const ta = new Date(a.getFullYear(), a.getMonth(), a.getDate()).getTime();
+  const tb = new Date(b.getFullYear(), b.getMonth(), b.getDate()).getTime();
+  return ta - tb;
+}

frontend/src/lib/formatApiError.ts

@@ -0,0 +1,12 @@
+export function formatApiErrorMessage(err: unknown, fallback: string): string {
+  if (err && typeof err === 'object' && 'message' in err) {
+    const m = (err as { message: unknown }).message;
+    if (Array.isArray(m)) {
+      return m.filter(Boolean).join(', ');
+    }
+    if (typeof m === 'string' && m.trim()) {
+      return m;
+    }
+  }
+  return fallback;
+}

frontend/src/lib/mocks/treatmentMockApi.ts

@@ -0,0 +1,200 @@
+import {
+  addCalendarDays,
+  isSameLocalCalendarDay,
+  startOfLocalDay,
+} from '@/lib/appointmentTime';
+import type {
+  FdiToothId,
+  LinkedOrganizationOption,
+  PastTreatment,
+  SaveTreatmentPayload,
+  SendTreatmentRecordPayload,
+  TreatmentAppointment,
+} from '@/types/treatment';
+
+const MOCK_DELAY_MS = 280;
+
+function sleep(ms = MOCK_DELAY_MS) {
+  return new Promise<void>((resolve) => setTimeout(resolve, ms));
+}
+
+function pad2(n: number) {
+  return String(n).padStart(2, '0');
+}
+
+/** Builds deterministic ids so React keys stay stable across hot reloads */
+function mockApptId(dayKey: string, slotIndex: number | string) {
+  return `mock-appt-${dayKey}-${slotIndex}`;
+}
+
+function buildSlotsForDay(day: Date, userId: string): TreatmentAppointment[] {
+  const dayStart = startOfLocalDay(day);
+  const y = dayStart.getFullYear();
+  const m = dayStart.getMonth();
+  const d = dayStart.getDate();
+  const dayKey = `${y}-${pad2(m + 1)}-${pad2(d)}`;
+
+  const base: Omit<TreatmentAppointment, 'id' | 'startAt' | 'endAt'>[] = [
+    {
+      patientId: 'pat-alice',
+      patientFirstName: 'Alice',
+      patientLastName: 'Moradi',
+      providerUserId: userId,
+      purpose: 'consultation',
+    },
+    {
+      patientId: 'pat-babak',
+      patientFirstName: 'Babak',
+      patientLastName: 'Karimi',
+      providerUserId: userId,
+      purpose: 'filling',
+    },
+    {
+      patientId: 'pat-sara',
+      patientFirstName: 'Sara',
+      patientLastName: 'Hosseini',
+      providerUserId: userId,
+      purpose: 'endo',
+    },
+  ];
+
+  const slots: TreatmentAppointment[] = [];
+  const times = [
+    [9, 0, 9, 45],
+    [11, 15, 12, 0],
+    [14, 30, 15, 30],
+  ];
+
+  times.forEach(([h1, m1, h2, m2], i) => {
+    const baseSlot = base[i % base.length];
+    const startAt = new Date(y, m, d, h1, m1, 0, 0).toISOString();
+    const endAt = new Date(y, m, d, h2, m2, 0, 0).toISOString();
+    slots.push({
+      id: mockApptId(dayKey, i),
+      ...baseSlot,
+      startAt,
+      endAt,
+    });
+  });
+
+  const today = new Date();
+  if (isSameLocalCalendarDay(day, today)) {
+    const now = today.getTime();
+    const start = new Date(now - 12 * 60 * 1000);
+    const end = new Date(now + 48 * 60 * 1000);
+    slots.unshift({
+      id: mockApptId(dayKey, 'now'),
+      patientId: 'pat-hesam',
+      patientFirstName: 'Hesam',
+      patientLastName: 'Aghaie',
+      providerUserId: userId,
+      startAt: start.toISOString(),
+      endAt: end.toISOString(),
+      purpose: 'visit',
+    });
+  }
+
+  return slots.sort((a, b) => new Date(a.startAt).getTime() - new Date(b.startAt).getTime());
+}
+
+const MOCK_HISTORY: Record<string, PastTreatment[]> = {
+  'pat-hesam': [
+    {
+      id: 'pt-h-1',
+      patientId: 'pat-hesam',
+      title: 'Root canal 45',
+      treatmentAt: new Date(2026, 8, 12).toISOString(),
+      status: 'completed',
+      records: [
+        {
+          id: 'ptr-1',
+          treatmentType: 'endo',
+          teeth: ['45'] as FdiToothId[],
+          notes: 'Instrumented and temporized.',
+        },
+      ],
+      documents: [
+        {
+          id: 'doc-1',
+          fileName: 'periapical-45.png',
+          mimeType: 'image/png',
+          sizeBytes: 842_120,
+        },
+        {
+          id: 'doc-2',
+          fileName: 'consent-signed.pdf',
+          mimeType: 'application/pdf',
+          sizeBytes: 312_000,
+        },
+      ],
+    },
+    {
+      id: 'pt-h-2',
+      patientId: 'pat-hesam',
+      title: 'Filling 14, 15',
+      treatmentAt: new Date(2025, 9, 10).toISOString(),
+      status: 'completed',
+      records: [
+        {
+          id: 'ptr-2',
+          treatmentType: 'filling',
+          teeth: ['14', '15'] as FdiToothId[],
+          notes: 'Composite restoration.',
+        },
+      ],
+      documents: [
+        {
+          id: 'doc-3',
+          fileName: 'notes.txt',
+          mimeType: 'text/plain',
+          sizeBytes: 420,
+        },
+      ],
+    },
+  ],
+  'pat-alice': [
+    {
+      id: 'pt-a-1',
+      patientId: 'pat-alice',
+      title: 'Hygiene visit',
+      treatmentAt: addCalendarDays(new Date(), -21).toISOString(),
+      status: 'completed',
+      records: [{ id: 'ptr-a', treatmentType: 'hygiene', teeth: [], notes: 'Scale & polish.' }],
+      documents: [],
+    },
+  ],
+};
+
+const MOCK_ORGS: LinkedOrganizationOption[] = [
+  { id: 'org-lab-north', name: 'North Dental Lab', active: true },
+  { id: 'org-lab-smile', name: 'Smile Ceramics', active: true },
+  { id: 'org-lab-old', name: 'Legacy Lab (inactive)', active: false },
+];
+
+export async function fetchMyAppointmentsForDay(
+  userId: string,
+  day: Date,
+): Promise<TreatmentAppointment[]> {
+  await sleep();
+  return buildSlotsForDay(day, userId);
+}
+
+export async function fetchPastTreatments(patientId: string): Promise<PastTreatment[]> {
+  await sleep();
+  return MOCK_HISTORY[patientId] ?? [];
+}
+
+export async function fetchLinkedOrganizations(): Promise<LinkedOrganizationOption[]> {
+  await sleep(180);
+  return MOCK_ORGS;
+}
+
+export async function saveTreatmentDraft(_payload: SaveTreatmentPayload): Promise<{ ok: true }> {
+  await sleep();
+  return { ok: true };
+}
+
+export async function sendTreatmentRecord(_payload: SendTreatmentRecordPayload): Promise<{ ok: true }> {
+  await sleep();
+  return { ok: true };
+}

frontend/src/lib/treatmentSelection.ts

@@ -0,0 +1,25 @@
+import { isSameLocalCalendarDay } from '@/lib/appointmentTime';
+import type { TreatmentAppointment } from '@/types/treatment';
+
+/**
+ * For the selected calendar day: if it is today, pick the appointment whose time range contains now;
+ * otherwise pick the first appointment of that day. Returns null when there are no appointments.
+ */
+export function pickAutoAppointment(
+  appointments: TreatmentAppointment[],
+  selectedDay: Date,
+): string | null {
+  if (appointments.length === 0) return null;
+
+  const now = new Date();
+  if (isSameLocalCalendarDay(selectedDay, now)) {
+    const t = now.getTime();
+    for (const a of appointments) {
+      const s = new Date(a.startAt).getTime();
+      const e = new Date(a.endAt).getTime();
+      if (t >= s && t <= e) return a.id;
+    }
+  }
+
+  return appointments[0].id;
+}

frontend/src/shared/permissions.ts

@@ -3,7 +3,7 @@ import type { Organization } from '@/types/organization';
 const ROUTE_TAB_READ: { prefix: string; permission: string }[] = [
   { prefix: '/today', permission: 'TAB_TODAY_READ' },
   { prefix: '/staff', permission: 'TAB_STAFF_READ' },
-  { prefix: '/lab', permission: 'TAB_LAB_READ' },
+  { prefix: '/organizations', permission: 'TAB_ORGANIZATIONS_READ' },
   { prefix: '/patients', permission: 'TAB_PATIENTS_READ' },
   { prefix: '/appointments', permission: 'TAB_APPOINTMENTS_READ' },
   { prefix: '/treatment', permission: 'TAB_TREATMENT_READ' },
@@ -48,3 +48,42 @@ export function canViewStaff(org: Organization | null): boolean {
     hasPermission(org, 'TAB_STAFF_READ') || hasPermission(org, 'TAB_STAFF_EDIT')
   );
 }
+
+/**
+ * Create/delete/book slots: owners, appointment editors, or treatment editors (schedule columns).
+ * Aligns with backend appointment mutations.
+ */
+export function canEditAppointments(org: Organization | null): boolean {
+  if (!org) {
+    return false;
+  }
+  if (org.isOwner) {
+    return true;
+  }
+  return (
+    hasPermission(org, 'TAB_APPOINTMENTS_EDIT') ||
+    hasPermission(org, 'TAB_TREATMENT_EDIT')
+  );
+}
+
+/** Route + sidebar: view appointments page if user can read appointments or manage treatment (column staff). */
+export function canAccessAppointmentsSection(org: Organization | null): boolean {
+  if (!org) {
+    return false;
+  }
+  if (org.isOwner) {
+    return true;
+  }
+  return (
+    hasPermission(org, 'TAB_APPOINTMENTS_READ') ||
+    hasPermission(org, 'TAB_APPOINTMENTS_EDIT') ||
+    hasPermission(org, 'TAB_TREATMENT_EDIT')
+  );
+}
+
+/** Treatment composer, scheduling columns, and saving clinical workflows */
+export function canEditTreatment(org: Organization | null): boolean {
+  if (!org) return false;
+  if (org.isOwner) return true;
+  return hasPermission(org, 'TAB_TREATMENT_EDIT');
+}

frontend/src/types/appointment.ts

@@ -0,0 +1,27 @@
+import type { Patient } from './patient';
+
+export const APPOINTMENT_PURPOSES = [
+  'consultation',
+  'filling',
+  'endo',
+  'visit',
+  'hygiene',
+] as const;
+
+export type AppointmentPurpose = (typeof APPOINTMENT_PURPOSES)[number];
+
+export interface AppointmentColumnProvider {
+  userId: string;
+  name: string;
+}
+
+export interface AppointmentRecord {
+  id: string;
+  organizationId: string;
+  patientId: string;
+  providerUserId: string;
+  startAt: string;
+  endAt: string;
+  purpose: string;
+  patient: Pick<Patient, 'id' | 'firstName' | 'lastName' | 'phone'>;
+}

frontend/src/types/treatment.ts

@@ -0,0 +1,112 @@
+/** Permanent dentition FDI ids (11–48), stored as two-digit strings */
+export type FdiToothId =
+  | '11'
+  | '12'
+  | '13'
+  | '14'
+  | '15'
+  | '16'
+  | '17'
+  | '18'
+  | '21'
+  | '22'
+  | '23'
+  | '24'
+  | '25'
+  | '26'
+  | '27'
+  | '28'
+  | '31'
+  | '32'
+  | '33'
+  | '34'
+  | '35'
+  | '36'
+  | '37'
+  | '38'
+  | '41'
+  | '42'
+  | '43'
+  | '44'
+  | '45'
+  | '46'
+  | '47'
+  | '48';
+
+export interface TreatmentAppointment {
+  id: string;
+  patientId: string;
+  patientFirstName: string;
+  patientLastName: string;
+  providerUserId: string;
+  startAt: string;
+  endAt: string;
+  purpose: string;
+}
+
+export interface TreatmentAttachmentMeta {
+  id: string;
+  fileName: string;
+  mimeType: string;
+  sizeBytes: number;
+}
+
+export const TREATMENT_TYPES = [
+  'consultation',
+  'filling',
+  'endo',
+  'visit',
+  'hygiene',
+] as const;
+
+export type TreatmentType = (typeof TREATMENT_TYPES)[number];
+
+export interface PastTreatmentRecord {
+  id: string;
+  treatmentType: TreatmentType;
+  teeth: FdiToothId[];
+  notes?: string | null;
+}
+
+export interface PastTreatment {
+  id: string;
+  patientId: string;
+  title: string;
+  treatmentAt: string;
+  status: string;
+  records: PastTreatmentRecord[];
+  documents: TreatmentAttachmentMeta[];
+}
+
+export interface LinkedOrganizationOption {
+  id: string;
+  name: string;
+  active: boolean;
+}
+
+export interface TreatmentRecordDraft {
+  clientId: string;
+  treatmentType: TreatmentType;
+  teeth: FdiToothId[];
+  comment: string;
+  attachmentMetas: TreatmentAttachmentMeta[];
+  /** Organizations selected for sending this record (mock only until API exists) */
+  sendToOrganizationIds: string[];
+  sentAt?: string | null;
+}
+
+/** Payload for persisting a draft (mock API); omits ephemeral client-only fields */
+export type SavedTreatmentRecordPayload = Omit<TreatmentRecordDraft, 'clientId' | 'sentAt'>;
+
+export interface SaveTreatmentPayload {
+  appointmentId: string;
+  patientId: string;
+  records: SavedTreatmentRecordPayload[];
+}
+
+export interface SendTreatmentRecordPayload {
+  appointmentId: string;
+  patientId: string;
+  recordClientId: string;
+  organizationIds: string[];
+}