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

tests/Framework/Mail/TransportResultTest.php

@@ -0,0 +1,90 @@
+<?php
+
+declare(strict_types=1);
+
+use App\Framework\Mail\TransportResult;
+
+describe('TransportResult', function () {
+    it('creates successful result', function () {
+        $messageId = 'msg_123';
+        $result = TransportResult::success($messageId);
+
+        expect($result->isSuccess())->toBeTrue();
+        expect($result->isFailure())->toBeFalse();
+        expect($result->getMessageId())->toBe($messageId);
+        // Cannot call getError() on success result - it throws exception
+        expect($result->getMetadata())->toBeEmpty();
+    });
+
+    it('creates successful result with metadata', function () {
+        $messageId = 'msg_123';
+        $metadata = ['server' => 'smtp.example.com', 'time' => 1.23];
+        $result = TransportResult::success($messageId, $metadata);
+
+        expect($result->isSuccess())->toBeTrue();
+        expect($result->getMessageId())->toBe($messageId);
+        expect($result->getMetadata())->toBe($metadata);
+    });
+
+    it('creates failure result', function () {
+        $error = 'SMTP connection failed';
+        $result = TransportResult::failure($error);
+
+        expect($result->isFailure())->toBeTrue();
+        expect($result->isSuccess())->toBeFalse();
+        expect($result->getError())->toBe($error);
+        // Cannot call getMessageId() on failure result - it throws exception
+        expect($result->getMetadata())->toBeEmpty();
+    });
+
+    it('creates failure result with metadata', function () {
+        $error = 'Authentication failed';
+        $metadata = ['smtp_code' => 535, 'server_response' => 'Invalid credentials'];
+        $result = TransportResult::failure($error, $metadata);
+
+        expect($result->isFailure())->toBeTrue();
+        expect($result->getError())->toBe($error);
+        expect($result->getMetadata())->toBe($metadata);
+    });
+
+    it('handles empty message ID in success result', function () {
+        $result = TransportResult::success('');
+
+        expect($result->isSuccess())->toBeTrue();
+        expect($result->getMessageId())->toBe('');
+    });
+
+    it('handles empty error in failure result', function () {
+        $result = TransportResult::failure('');
+
+        expect($result->isFailure())->toBeTrue();
+        expect($result->getError())->toBe('');
+    });
+
+    it('success and failure are mutually exclusive', function () {
+        $successResult = TransportResult::success('msg_123');
+        $failureResult = TransportResult::failure('error');
+
+        expect($successResult->isSuccess())->toBeTrue();
+        expect($successResult->isFailure())->toBeFalse();
+
+        expect($failureResult->isSuccess())->toBeFalse();
+        expect($failureResult->isFailure())->toBeTrue();
+    });
+
+    it('preserves metadata correctly', function () {
+        $metadata = [
+            'server' => 'smtp.gmail.com',
+            'port' => 587,
+            'encryption' => 'tls',
+            'auth_method' => 'login',
+            'response_time' => 0.456,
+        ];
+
+        $successResult = TransportResult::success('msg_123', $metadata);
+        $failureResult = TransportResult::failure('connection failed', $metadata);
+
+        expect($successResult->getMetadata())->toBe($metadata);
+        expect($failureResult->getMetadata())->toBe($metadata);
+    });
+});