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/Http/IpAddress.php

@@ -23,22 +23,23 @@ final readonly class IpAddress
         return new self($ip);
     }
 
-    public static function fromRequest(): ?self
+    public static function fromRequest(ServerEnvironment $server): ?self
     {
-        $headers = [
-            'HTTP_CF_CONNECTING_IP',     // Cloudflare
-            'HTTP_CLIENT_IP',            // Proxy
-            'HTTP_X_FORWARDED_FOR',      // Load balancer/proxy
-            'HTTP_X_FORWARDED',          // Proxy
-            'HTTP_X_CLUSTER_CLIENT_IP',  // Cluster
-            'HTTP_FORWARDED_FOR',        // Proxy
-            'HTTP_FORWARDED',            // Proxy
-            'REMOTE_ADDR',                // Standard
+        $keys = [
+            ServerKey::HTTP_CF_CONNECTING_IP,     // Cloudflare
+            ServerKey::HTTP_CLIENT_IP,            // Proxy
+            ServerKey::HTTP_X_FORWARDED_FOR,      // Load balancer/proxy
+            ServerKey::HTTP_X_FORWARDED,          // Proxy
+            ServerKey::HTTP_X_CLUSTER_CLIENT_IP,  // Cluster
+            ServerKey::HTTP_FORWARDED_FOR,        // Proxy
+            ServerKey::HTTP_FORWARDED,            // Proxy
+            ServerKey::REMOTE_ADDR,                // Standard
         ];
 
-        foreach ($headers as $header) {
-            if (! empty($_SERVER[$header])) {
-                $ip = trim(explode(',', $_SERVER[$header])[0]);
+        foreach ($keys as $key) {
+            $value = $server->get($key);
+            if ($value !== null && $value !== '') {
+                $ip = trim(explode(',', $value)[0]);
                 if (self::isValid($ip)) {
                     return new self($ip);
                 }