feat: add CampusScope request-level provider for data isolation

apps/server/src/app.module.ts

@@ -1,4 +1,4 @@
-import { Module } from '@nestjs/common';
+import { Module, NestModule, MiddlewareConsumer } from '@nestjs/common';
 import { APP_GUARD } from '@nestjs/core';
 import { ConfigModule, ConfigService } from '@nestjs/config';
 import { EventEmitterModule } from '@nestjs/event-emitter';
@@ -54,6 +54,8 @@ import { ClassroomRentalsModule } from './classroom-rentals/classroom-rentals.mo
 import { SyncModule } from './sync/sync.module';
 import { NotificationsModule } from './notifications/notifications.module';
 import { DepartmentsModule } from './departments/departments.module';
+import { CampusScope } from './common/campus-scope';
+import { CampusScopeMiddleware } from './common/campus-scope.middleware';
 
 @Module({
   imports: [
@@ -139,9 +141,14 @@ import { DepartmentsModule } from './departments/departments.module';
     DepartmentsModule,
   ],
   providers: [
+    CampusScope,
     { provide: APP_GUARD, useClass: ThrottlerGuard },
     { provide: APP_GUARD, useClass: JwtAuthGuard },
     { provide: APP_GUARD, useClass: PermissionGuard },
   ],
 })
-export class AppModule {}
+export class AppModule implements NestModule {
+  configure(consumer: MiddlewareConsumer) {
+    consumer.apply(CampusScopeMiddleware).forRoutes('*');
+  }
+}