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/Migration/MigrationRunner.php

@@ -227,7 +227,15 @@ final readonly class MigrationRunner
     }
 
     /**
-     * Rollback migrations
+     * Rollback migrations (only SafelyReversible migrations)
+     *
+     * This method will ONLY rollback migrations that implement the SafelyReversible interface,
+     * ensuring no data loss occurs during rollback operations.
+     *
+     * @param MigrationCollection $migrations Available migrations
+     * @param int $steps Number of migrations to rollback
+     * @return array<Migration> Successfully rolled back migrations
+     * @throws FrameworkException If attempting to rollback unsafe migration
      */
     public function rollback(MigrationCollection $migrations, int $steps = 1): array
     {
@@ -258,6 +266,28 @@ final readonly class MigrationRunner
                 continue;
             }
 
+            // CRITICAL SAFETY CHECK: Ensure migration supports safe rollback
+            if (! $migration instanceof SafelyReversible) {
+                throw FrameworkException::create(
+                    ErrorCode::DB_MIGRATION_NOT_REVERSIBLE,
+                    "Migration {$version} does not support safe rollback"
+                )->withContext(
+                    ExceptionContext::forOperation('migration.rollback', 'MigrationRunner')
+                        ->withData([
+                            'migration_version' => $version,
+                            'migration_class' => get_class($migration),
+                            'migration_description' => $migration->getDescription(),
+                            'requested_rollback_steps' => $steps,
+                            'current_position' => $currentPosition,
+                        ])
+                        ->withMetadata([
+                            'reason' => 'Migration does not implement SafelyReversible interface',
+                            'recommendation' => 'Create a new forward migration to undo the changes instead of rolling back',
+                            'safe_rollback_guide' => 'See SafelyReversible interface documentation for guidelines',
+                        ])
+                );
+            }
+
             try {
                 // Validate rollback safety
                 $this->validator->validateRollbackSafety($migration, $version);