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.

composer.json

@@ -32,7 +32,7 @@
         }
     },
     "require": {
-      "php": "^8.5",
+      "php": "^8.4 || ^8.5",
       "predis/predis": "^3.0",
       "ext-dom": "*",
       "ext-libxml": "*",
@@ -43,7 +43,15 @@
       "ext-gd": "*",
       "ext-pdo": "*",
       "ext-openssl": "*",
-      "ext-bcmath": "*"
+      "ext-bcmath": "*",
+      "ext-uri": "*",
+      "ext-sodium": "*",
+      "ext-posix": "*"
+    },
+    "suggest": {
+      "ext-apcu": "For better caching performance (not yet available for PHP 8.5)",
+      "ext-redis": "For Redis cache driver support (not yet available for PHP 8.5)",
+      "ext-zend-opcache": "For improved performance (built-in for PHP 8.5)"
     },
 
   "scripts": {
@@ -51,6 +59,9 @@
     "cs-fix": "php-cs-fixer fix --allow-risky=yes || true",
     "reload": "composer dump-autoload -o",
     "phpstan": "phpstan analyse",
-    "phpstan-baseline": "phpstan analyse --generate-baseline"
+    "phpstan-baseline": "phpstan analyse --generate-baseline",
+    "security:audit": "composer audit --format=table",
+    "security:audit-json": "composer audit --format=json",
+    "security:check": "@security:audit --no-dev"
   }
 }