improvement: some new gadgets added to dashboard. some new functionality added to existed gadgets.

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

@@ -94,6 +94,17 @@ export class ListLabTasksDto {
   @IsBoolean()
   overdue?: boolean;
 
+  /** When true, only tasks with no assignee. */
+  @IsOptional()
+  @Transform(toBoolean)
+  @IsBoolean()
+  unassignedOnly?: boolean;
+
+  /** Narrow list to a single prosthesis type code. */
+  @IsOptional()
+  @IsString()
+  prosthesisTypeCode?: string;
+
   @IsOptional()
   @IsIn(['date', 'status', 'clinic', 'patient', 'important', 'prosthesis', 'taskType', 'dueDate'])
   sortBy?: TaskSortField;
@@ -172,6 +183,17 @@ export class LocateTaskPageDto {
   @IsBoolean()
   overdue?: boolean;
 
+  /** When true, only tasks with no assignee. */
+  @IsOptional()
+  @Transform(toBoolean)
+  @IsBoolean()
+  unassignedOnly?: boolean;
+
+  /** Narrow list to a single prosthesis type code. */
+  @IsOptional()
+  @IsString()
+  prosthesisTypeCode?: string;
+
   @IsOptional()
   @IsIn(['date', 'status', 'clinic', 'patient', 'important', 'prosthesis', 'taskType', 'dueDate'])
   sortBy?: TaskSortField;

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

@@ -337,6 +337,10 @@ export class TasksService {
       },
       ...(status !== undefined ? { status } : {}),
       ...(query.assignedToMe ? { assigneeUserId: actorUserId } : {}),
+      ...(query.unassignedOnly ? { assigneeUserId: null } : {}),
+      ...(query.prosthesisTypeCode?.trim()
+        ? { prosthesisTypeCode: query.prosthesisTypeCode.trim() }
+        : {}),
     };
 
     const stepCompleted = query.stepCompleted?.trim();
@@ -385,6 +389,8 @@ export class TasksService {
       stepCompleted: query.stepCompleted,
       assignedToMe: query.assignedToMe,
       overdue: query.overdue,
+      unassignedOnly: query.unassignedOnly,
+      prosthesisTypeCode: query.prosthesisTypeCode,
       sortBy: query.sortBy,
       sortDir: query.sortDir,
       limit: query.limit,