feat: DingTalk attendance import + integration config + expense types + UI polish

Server:
- Add DingTalk attendance import service with SSE progress streaming
- Add IntegrationConfig entity & module for multi-tenant DingTalk setup
- Add ExpenseType entity & ExpenseTypesModule
- Add SeedModule for DB initialization
- Add UserDingMapping entity for DingTalk user linkage
- Attendance service: import flow with dedup & student auto-mapping
- Rooms service: time-range overlap queries
- Sync controller/service: DingTalk integration wiring
- Permission guard: refactor to pure re-export
- Campus scope middleware: tenant-aware filtering

Admin UI:
- Attendance page: import UI with progress & result summary
- All pages: tableStyle/tablePagination standardization
- Login page: responsive styling
- Sensitive data: useViewSensitive hook for masked viewing
- Vite config: path aliases, build optimization
- Test infra: vitest config, test utilities

Docs: PRD DingTalk batch 1 & 2 design docs

apps/server/src/integration/config/config.module.ts

@@ -0,0 +1,16 @@
+import { Module } from '@nestjs/common';
+import { TypeOrmModule } from '@nestjs/typeorm';
+import {
+  IntegrationConfig,
+  IntegrationConfigDetail,
+} from '../entities/integration-config.entity';
+import { IntegrationConfigService } from './integration-config.service';
+import { IntegrationConfigController } from './integration-config.controller';
+
+@Module({
+  imports: [TypeOrmModule.forFeature([IntegrationConfig, IntegrationConfigDetail])],
+  controllers: [IntegrationConfigController],
+  providers: [IntegrationConfigService],
+  exports: [IntegrationConfigService],
+})
+export class IntegrationConfigModule {}