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/Analytics/AnalyticsCollector.php

@@ -55,8 +55,8 @@ final class AnalyticsCollector
             'category' => $category->value,
             'session_id' => $this->getSessionId(),
             'timestamp' => time(),
-            'user_agent' => $this->serverEnvironment->getUserAgent()->value,
-            'ip' => $this->serverEnvironment->getClientIp()->value,
+            'user_agent' => (string) $this->serverEnvironment->getUserAgent(),
+            'ip' => (string) $this->serverEnvironment->getClientIp(),
         ], $properties);
 
         // Nutze Performance-System für Analytics
@@ -136,7 +136,7 @@ final class AnalyticsCollector
             'message' => $message,
             'session_id' => $this->getSessionId(),
             'timestamp' => time(),
-            'url' => $this->serverEnvironment->getRequestUri()->value,
+            'url' => (string) $this->serverEnvironment->getRequestUri(),
         ], $context);
 
         $this->performanceCollector->recordMetric(
@@ -307,11 +307,9 @@ final class AnalyticsCollector
             return $_COOKIE['analytics_session'];
         }
 
-        // Generiere neue Session-ID
-        $sessionId = bin2hex($this->random->bytes(16));
-        setcookie('analytics_session', $sessionId, time() + 1800); // 30 Min
-
-        return $sessionId;
+        // Generiere neue Session-ID (Cookie-Setzung erfolgt über Response-System)
+        // Hier nur ID generieren, nicht setzen um "headers already sent" zu vermeiden
+        return bin2hex($this->random->bytes(16));
     }
 
     /**