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/Context/ExecutionContext.php

@@ -100,8 +100,6 @@ final readonly class ExecutionContext
         $scriptName = $_SERVER['argv'][0] ?? '';
         $commandLine = implode(' ', $_SERVER['argv'] ?? []);
 
-        var_dump($scriptName);
-
         $type = match(true) {
             str_contains($scriptName, 'worker') => ContextType::WORKER,
             // Temporarily treat console.php as CLI_SCRIPT until CONSOLE context discovery is fixed