feat(task1): restructure directories for turborepo monorepo

- Move backend/ to apps/server/ via git mv
- Move frontend/ to apps/admin/ via git mv
- Create packages/typescript-config/ with base, nestjs, and react-vite presets

apps/server/src/dashboard/dashboard.controller.ts

@@ -0,0 +1,41 @@
+import { Controller, Get, Query, UseGuards } from '@nestjs/common';
+import { DashboardService } from './dashboard.service';
+import { JwtAuthGuard } from '../auth/guards/jwt-auth.guard';
+import { RequirePermission } from '../auth/decorators/permission.decorator';
+
+@UseGuards(JwtAuthGuard)
+@RequirePermission('dashboard:view')
+@Controller('dashboard')
+export class DashboardController {
+  constructor(private service: DashboardService) {}
+
+  @Get('stats')
+  getStats() {
+    return this.service.getStats();
+  }
+
+  @Get('gantt')
+  getGanttData(
+    @Query('periodStart') periodStart?: string,
+    @Query('periodEnd') periodEnd?: string,
+    @Query('building') building?: string,
+  ) {
+    return this.service.getGanttData({ periodStart, periodEnd, building });
+  }
+
+  @Get('expense-stats')
+  getExpenseStats(
+    @Query('periodStart') periodStart?: string,
+    @Query('periodEnd') periodEnd?: string,
+  ) {
+    return this.service.getExpenseStats(periodStart, periodEnd);
+  }
+
+  @Get('room-ranking')
+  getRoomExpenseRanking(
+    @Query('periodStart') periodStart?: string,
+    @Query('periodEnd') periodEnd?: string,
+  ) {
+    return this.service.getRoomExpenseRanking(periodStart, periodEnd);
+  }
+}