fix: resolve RedisCache array offset error and improve discovery diagnostics

- Fix RedisCache driver to handle MGET failures gracefully with fallback
- Add comprehensive discovery context comparison debug tools
- Identify root cause: WEB context discovery missing 166 items vs CLI
- WEB context missing RequestFactory class entirely (52 vs 69 commands)
- Improved exception handling with detailed binding diagnostics

src/Application/Security/WafFeedbackDashboardController.php

@@ -7,6 +7,7 @@ namespace App\Application\Security;
 use App\Framework\Attributes\Route;
 use App\Framework\Core\ValueObjects\Timestamp;
 use App\Framework\Http\HttpRequest;
+use App\Framework\Http\Method;
 use App\Framework\Router\Result\ViewResult;
 use App\Framework\Waf\DetectionCategory;
 use App\Framework\Waf\Feedback\FeedbackRepositoryInterface;
@@ -31,7 +32,7 @@ final readonly class WafFeedbackDashboardController
     /**
      * Show the WAF feedback dashboard
      */
-    #[Route(path: '/admin/security/waf/feedback', method: 'GET')]
+    #[Route(path: '/admin/security/waf/feedback', method: Method::GET)]
     public function showDashboard(HttpRequest $request): ViewResult
     {
         // Get feedback statistics
@@ -104,7 +105,7 @@ final readonly class WafFeedbackDashboardController
     /**
      * Show detailed feedback for a specific category
      */
-    #[Route(path: '/admin/security/waf/feedback/category/{category}', method: 'GET')]
+    #[Route(path: '/admin/security/waf/feedback/category/{category}', method: Method::GET)]
     public function showCategoryFeedback(HttpRequest $request, string $category): ViewResult
     {
         try {
@@ -166,7 +167,7 @@ final readonly class WafFeedbackDashboardController
     /**
      * Show feedback learning history
      */
-    #[Route(path: '/admin/security/waf/feedback/learning', method: 'GET')]
+    #[Route(path: '/admin/security/waf/feedback/learning', method: Method::GET)]
     public function showLearningHistory(HttpRequest $request): ViewResult
     {
         // In a real implementation, this would retrieve learning history from a database