refactor: simplify Redis configuration initialization

- Use RedisConfig::fromEnvironment() in LoggerInitializer
- Remove fallback logic in QueueInitializer, always use connection pool
- Make RedisConfig constructor private
- Clean up Redis connection error message

src/Framework/Redis/RedisConfig.php

@@ -12,7 +12,7 @@ use App\Framework\Config\EnvKey;
  */
 final readonly class RedisConfig
 {
-    public function __construct(
+    private function __construct(
         public string $host = 'redis',
         public int $port = 6379,
         public ?string $password = null,

src/Framework/Redis/RedisConnection.php

@@ -112,7 +112,7 @@ final class RedisConnection implements RedisConnectionInterface
             $this->connected = false;
 
             throw new RedisConnectionException(
-                "Failed to connect to Redis ({$this->name}): " . $e->getMessage() . " with Host: {$this->config->host} and Password: {$this->config->password} should be {$_ENV['REDIS_HOST']} and {$_ENV['REDIS_PASSWORD']}",
+                "Failed to connect to Redis ({$this->name}): " . $e->getMessage() . " with Host: {$this->config->host} and Password: {$this->config->password}",
                 previous: $e
             );
         }