improvement: all demo bugs fixed. give me more baby.

backend/src/modules/tasks/dto/tasks.dto.ts

@@ -25,7 +25,14 @@ export class UpdateLabTaskDto {
   status: LabTaskStatus;
 }
 
-export type TaskSortField = 'date' | 'status' | 'clinic' | 'patient' | 'important';
+export type TaskSortField =
+  | 'date'
+  | 'status'
+  | 'clinic'
+  | 'patient'
+  | 'important'
+  | 'prosthesis'
+  | 'taskType';
 
 export class ListLabTasksDto {
   @IsOptional()
@@ -59,7 +66,7 @@ export class ListLabTasksDto {
   sentTo?: string;
 
   @IsOptional()
-  @IsIn(['date', 'status', 'clinic', 'patient', 'important'])
+  @IsIn(['date', 'status', 'clinic', 'patient', 'important', 'prosthesis', 'taskType'])
   sortBy?: TaskSortField;
 
   @IsOptional()

backend/src/modules/tasks/tasks.service.ts

@@ -188,9 +188,9 @@ export class TasksService {
           ? { treatment: { organizationId: query.clinicOrganizationId } }
           : {}),
         ...(query.q?.trim() ? { treatment: this.buildSearchWhere(query.q.trim()) } : {}),
+        ...(query.important !== undefined ? { isImportant: query.important } : {}),
       },
       ...(status !== undefined ? { status } : {}),
-      ...(query.important !== undefined ? { isImportant: query.important } : {}),
     };
   }
 
@@ -229,15 +229,24 @@ export class TasksService {
           { id: 'asc' },
         ];
       case 'important':
-        return [{ isImportant: dir }, { createdAt: 'desc' }, { id: 'asc' }];
+        return [{ labCase: { isImportant: dir } }, { createdAt: 'desc' }, { id: 'asc' }];
+      case 'prosthesis':
+        return [{ prosthesisTypeCode: dir }, { createdAt: 'desc' }, { id: 'asc' }];
+      case 'taskType':
+        return [
+          { workflowStepCode: dir },
+          { stepOrder: 'asc' },
+          { createdAt: 'desc' },
+          { id: 'asc' },
+        ];
       case 'date':
       default:
+        // date / caseId / taskId / stepId — newest first by default.
         return [
           { labCase: { sentAt: dir } },
-          { labCaseId: 'asc' },
-          { treatmentDetailId: 'asc' },
-          { stepOrder: 'asc' },
-          { id: 'asc' },
+          { labCaseId: dir },
+          { id: dir },
+          { stepOrder: dir },
         ];
     }
   }
@@ -259,7 +268,7 @@ export class TasksService {
       stepOrder: task.stepOrder,
       stepLabel: task.stepLabel,
       status: task.status,
-      isImportant: task.isImportant,
+      isImportant: task.labCase.isImportant,
       lastStatusChangedAt: task.lastStatusChangedAt?.toISOString() ?? null,
       lastStatusChangedBy: task.lastStatusChangedBy
         ? { id: task.lastStatusChangedBy.id, name: task.lastStatusChangedBy.name }