feat: migrate from PocketBase to PostgreSQL with Drizzle ORM

- Add @project-e/db package with Drizzle schema and migrations
- Replace PocketBase client with PostgreSQL-based database client
- Migrate auth from custom to NextAuth.js
- Add Docker Compose with PostgreSQL container
- Update worker to use new database client
- Remove PocketBase-specific files and migrations
- Add drizzle config and initial migration

apps/web/next.config.ts

@@ -7,9 +7,8 @@ const allowedHosts = (process.env.ALLOWED_HOSTS || 'localhost')
   .filter(Boolean);
 
 const nextConfig: NextConfig = {
-  transpilePackages: ['@project-e/shared'],
+  transpilePackages: ['@project-e/shared', '@project-e/db'],
   output: 'standalone',
-  serverExternalPackages: ['pocketbase'],
 
   // Allow requests from configured hosts (for Nginx Proxy Manager)
   allowedDevOrigins: allowedHosts,