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/journal-entries/journal-entries.controller.ts

@@ -0,0 +1,51 @@
+import {
+  Controller, Get, Post, Body, Param, Query, UseGuards, Request,
+} from '@nestjs/common';
+import { ApiTags, ApiOperation, ApiBearerAuth } from '@nestjs/swagger';
+import { JwtAuthGuard } from '../auth/guards/jwt-auth.guard';
+import { JournalEntriesService } from './journal-entries.service';
+import { CreateJournalEntryDto } from './dto/create-journal-entry.dto';
+import { VoidJournalEntryDto } from './dto/void-journal-entry.dto';
+
+@ApiTags('journal-entries')
+@Controller('journal-entries')
+@ApiBearerAuth()
+@UseGuards(JwtAuthGuard)
+export class JournalEntriesController {
+  constructor(private jeService: JournalEntriesService) {}
+
+  @Get()
+  @ApiOperation({ summary: 'List journal entries' })
+  findAll(
+    @Query('from') from?: string,
+    @Query('to') to?: string,
+    @Query('accountId') accountId?: string,
+    @Query('type') type?: string,
+  ) {
+    return this.jeService.findAll({ from, to, accountId, type });
+  }
+
+  @Get(':id')
+  @ApiOperation({ summary: 'Get journal entry by ID' })
+  findOne(@Param('id') id: string) {
+    return this.jeService.findOne(id);
+  }
+
+  @Post()
+  @ApiOperation({ summary: 'Create a journal entry' })
+  create(@Body() dto: CreateJournalEntryDto, @Request() req: any) {
+    return this.jeService.create(dto, req.user.sub);
+  }
+
+  @Post(':id/post')
+  @ApiOperation({ summary: 'Post (finalize) a journal entry' })
+  post(@Param('id') id: string, @Request() req: any) {
+    return this.jeService.post(id, req.user.sub);
+  }
+
+  @Post(':id/void')
+  @ApiOperation({ summary: 'Void a journal entry' })
+  void(@Param('id') id: string, @Body() dto: VoidJournalEntryDto, @Request() req: any) {
+    return this.jeService.void(id, req.user.sub, dto.reason);
+  }
+}