feat: Implement Phase 1 & 2 - Full monorepo architecture

## Backend API (apps/api)
- Express.js server with TypeScript
- JWT authentication with access/refresh tokens
- Multi-tenant middleware (schema per tenant)
- Complete CRUD routes: auth, cfdis, transactions, contacts, categories, metrics, alerts
- SAT integration: CFDI 4.0 XML parser, FIEL authentication
- Metrics engine: 50+ financial metrics (Core, Startup, Enterprise)
- Rate limiting, CORS, Helmet security

## Frontend Web (apps/web)
- Next.js 14 with App Router
- Authentication pages: login, register, forgot-password
- Dashboard layout with Sidebar and Header
- Dashboard pages: overview, cash-flow, revenue, expenses, metrics
- Zustand stores for auth and UI state
- Theme support with flash prevention

## Database Package (packages/database)
- PostgreSQL migrations with multi-tenant architecture
- Public schema: plans, tenants, users, sessions, subscriptions
- Tenant schema: sat_credentials, cfdis, transactions, contacts, accounts, alerts
- Tenant management functions
- Seed data for plans and super admin

## Shared Package (packages/shared)
- TypeScript types: auth, tenant, financial, metrics, reports
- Zod validation schemas for all entities
- Utility functions for formatting

## UI Package (packages/ui)
- Chart components: LineChart, BarChart, AreaChart, PieChart
- Data components: DataTable, MetricCard, KPICard, AlertBadge
- PeriodSelector and Skeleton components

## Infrastructure
- Docker Compose: PostgreSQL 15, Redis 7, MinIO, Mailhog
- Makefile with 25+ development commands
- Development scripts: dev-setup.sh, dev-down.sh
- Complete .env.example template

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

packages/database/tsconfig.json

@@ -0,0 +1,27 @@
+{
+  "compilerOptions": {
+    "target": "ES2022",
+    "module": "NodeNext",
+    "moduleResolution": "NodeNext",
+    "lib": ["ES2022"],
+    "outDir": "./dist",
+    "rootDir": "./src",
+    "strict": true,
+    "esModuleInterop": true,
+    "skipLibCheck": true,
+    "forceConsistentCasingInFileNames": true,
+    "resolveJsonModule": true,
+    "declaration": true,
+    "declarationMap": true,
+    "sourceMap": true,
+    "noImplicitAny": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "noImplicitReturns": true,
+    "noFallthroughCasesInSwitch": true,
+    "allowSyntheticDefaultImports": true,
+    "isolatedModules": true
+  },
+  "include": ["src/**/*"],
+  "exclude": ["node_modules", "dist", "**/*.test.ts"]
+}