Enable Discovery debug logging for production troubleshooting

- Add DISCOVERY_LOG_LEVEL=debug
- Add DISCOVERY_SHOW_PROGRESS=true
- Temporary changes for debugging InitializerProcessor fixes on production

src/Framework/CircuitBreaker/CircuitBreakerException.php

@@ -0,0 +1,54 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Framework\CircuitBreaker;
+
+use App\Framework\Exception\ErrorCode;
+use App\Framework\Exception\ExceptionContext;
+use App\Framework\Exception\FrameworkException;
+
+/**
+ * Exception thrown when Circuit Breaker is in OPEN state
+ */
+final class CircuitBreakerException extends FrameworkException
+{
+    public function __construct(
+        public readonly string $service,
+        public readonly CircuitState $state,
+        public readonly int $failureCount,
+        public readonly int $retryAfterSeconds,
+        ?\Throwable $previous = null
+    ) {
+        $message = "Circuit breaker for service '{$service}' is {$state->value}. Service unavailable after {$failureCount} failures.";
+
+        $context = new ExceptionContext(
+            operation: 'circuit_breaker_check',
+            component: 'CircuitBreaker',
+            data: [
+                'service' => $service,
+                'state' => $state->value,
+                'failure_count' => $failureCount,
+                'retry_after_seconds' => $retryAfterSeconds,
+            ],
+            metadata: [
+                'requires_alert' => true,
+                'recoverable' => true,
+                'error_code' => ErrorCode::SERVICE_CIRCUIT_OPEN->value,
+                'http_status' => 503,
+                'additional_headers' => [
+                    'Retry-After' => (string) $retryAfterSeconds,
+                ],
+            ]
+        );
+
+        parent::__construct(
+            message: $message,
+            context: $context,
+            code: 503,
+            previous: $previous,
+            errorCode: ErrorCode::SERVICE_CIRCUIT_OPEN,
+            retryAfter: $retryAfterSeconds
+        );
+    }
+}