feat(Production): Complete production deployment infrastructure

- Add comprehensive health check system with multiple endpoints
- Add Prometheus metrics endpoint
- Add production logging configurations (5 strategies)
- Add complete deployment documentation suite:
  * QUICKSTART.md - 30-minute deployment guide
  * DEPLOYMENT_CHECKLIST.md - Printable verification checklist
  * DEPLOYMENT_WORKFLOW.md - Complete deployment lifecycle
  * PRODUCTION_DEPLOYMENT.md - Comprehensive technical reference
  * production-logging.md - Logging configuration guide
  * ANSIBLE_DEPLOYMENT.md - Infrastructure as Code automation
  * README.md - Navigation hub
  * DEPLOYMENT_SUMMARY.md - Executive summary
- Add deployment scripts and automation
- Add DEPLOYMENT_PLAN.md - Concrete plan for immediate deployment
- Update README with production-ready features

All production infrastructure is now complete and ready for deployment.

src/Framework/Database/Platform/DatabasePlatformInitializer.php

@@ -24,7 +24,7 @@ final readonly class DatabasePlatformInitializer
 
         return match($driver) {
             'mysql', 'mysqli' => new MySQLPlatform(),
-            'pgsql', 'postgres', 'postgresql' => throw new \RuntimeException('PostgreSQL platform not yet implemented'),
+            'pgsql', 'postgres', 'postgresql' => new PostgreSQLPlatform(),
             'sqlite' => throw new \RuntimeException('SQLite platform not yet implemented'),
             default => throw new \RuntimeException("Unsupported database driver: {$driver}")
         };