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>

frontend/src/theme/theme.ts

@@ -0,0 +1,10 @@
+import { createTheme } from '@mantine/core';
+
+export const theme = createTheme({
+  primaryColor: 'blue',
+  fontFamily: '-apple-system, BlinkMacSystemFont, Segoe UI, Roboto, sans-serif',
+  headings: {
+    fontFamily: '-apple-system, BlinkMacSystemFont, Segoe UI, Roboto, sans-serif',
+  },
+  defaultRadius: 'md',
+});