feat: integrate notification creation into business modules (classes, schedules done; bills/occupancies/deposits need student→userId mapping)

apps/server/src/classes/classes.controller.ts

@@ -24,6 +24,8 @@ import { JwtAuthGuard } from '../auth/guards/jwt-auth.guard';
 import { OperationLogsService } from '../operation-logs/operation-logs.service';
 import { extractRequestInfo } from '../common/request-utils';
 import { RequirePermission } from '../auth/decorators/permission.decorator';
+import { NotificationsService } from '../notifications/notifications.service';
+import { NotificationType } from '../entities/notification.entity';
 import * as ExcelJS from 'exceljs';
 
 @UseGuards(JwtAuthGuard)
@@ -32,6 +34,7 @@ export class ClassesController {
   constructor(
     private readonly service: ClassesService,
     private readonly logService: OperationLogsService,
+    private readonly notificationsService: NotificationsService,
   ) {}
 
   @Get()
@@ -170,6 +173,17 @@ export class ClassesController {
       ipAddress,
       userAgent,
     });
+    try {
+      const cls = await this.service.findOne(+id);
+      if (cls.headTeacherId) {
+        void this.notificationsService.create({
+          recipientIds: [cls.headTeacherId],
+          type: NotificationType.CLASS_CHANGE,
+          title: '学员变动',
+          content: `班级新增${result.added}名学生`,
+        });
+      }
+    } catch {}
     return result;
   }
 
@@ -222,6 +236,14 @@ export class ClassesController {
       ipAddress,
       userAgent,
     });
+    try {
+      void this.notificationsService.create({
+        recipientIds: [dto.userId],
+        type: NotificationType.CLASS_CHANGE,
+        title: '班级分配',
+        content: `您已被分配到班级担任${dto.roleType}角色`,
+      });
+    } catch {}
     return result;
   }