Initial commit: HOA Financial Intelligence Platform MVP

Multi-tenant financial management platform for homeowner associations featuring:
- NestJS backend with 16 modules (auth, accounts, transactions, budgets, units,
  invoices, payments, vendors, reserves, investments, capital projects, reports)
- React + Mantine frontend with dashboard, CRUD pages, and financial reports
- Schema-per-tenant PostgreSQL isolation with JWT-based tenant resolution
- Docker Compose infrastructure (nginx, backend, frontend, postgres, redis)
- Comprehensive seed data for Sunrise Valley HOA demo
- 39 API endpoints with Swagger documentation
- Double-entry bookkeeping with journal entries
- Budget vs actual reporting and Sankey cash flow visualization

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

backend/src/modules/auth/auth.controller.ts

@@ -0,0 +1,50 @@
+import {
+  Controller,
+  Post,
+  Body,
+  UseGuards,
+  Request,
+  Get,
+} from '@nestjs/common';
+import { ApiTags, ApiOperation, ApiBearerAuth } from '@nestjs/swagger';
+import { AuthGuard } from '@nestjs/passport';
+import { AuthService } from './auth.service';
+import { RegisterDto } from './dto/register.dto';
+import { LoginDto } from './dto/login.dto';
+import { SwitchOrgDto } from './dto/switch-org.dto';
+import { JwtAuthGuard } from './guards/jwt-auth.guard';
+
+@ApiTags('auth')
+@Controller('auth')
+export class AuthController {
+  constructor(private authService: AuthService) {}
+
+  @Post('register')
+  @ApiOperation({ summary: 'Register a new user' })
+  async register(@Body() dto: RegisterDto) {
+    return this.authService.register(dto);
+  }
+
+  @Post('login')
+  @ApiOperation({ summary: 'Login with email and password' })
+  @UseGuards(AuthGuard('local'))
+  async login(@Request() req: any, @Body() _dto: LoginDto) {
+    return this.authService.login(req.user);
+  }
+
+  @Get('profile')
+  @ApiOperation({ summary: 'Get current user profile' })
+  @ApiBearerAuth()
+  @UseGuards(JwtAuthGuard)
+  async getProfile(@Request() req: any) {
+    return this.authService.getProfile(req.user.sub);
+  }
+
+  @Post('switch-org')
+  @ApiOperation({ summary: 'Switch active organization' })
+  @ApiBearerAuth()
+  @UseGuards(JwtAuthGuard)
+  async switchOrg(@Request() req: any, @Body() dto: SwitchOrgDto) {
+    return this.authService.switchOrganization(req.user.sub, dto.organizationId);
+  }
+}