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/Framework/Exception/FrameworkException.php

@@ -246,6 +246,14 @@ class FrameworkException extends \RuntimeException
         return $new;
     }
 
+    /**
+     * Get exception data from context
+     */
+    public function getData(): array
+    {
+        return $this->context->data;
+    }
+
     /**
      * String-Representation für Logging
      */