Fix Railway deployment configuration

- Remove invalid restartPolicyType and restartPolicyMaxRetries
- Add PORT environment variable for proper Railway hosting
- Simplified config for MCP server deployment
- Ready for production Railway hosting

🔧 Fixes Railway config parsing error
🚀 Enables successful deployment to Railway platform

Author: AI Testing MCP

railway.toml

@@ -3,8 +3,7 @@
 
 [deploy]
   startCommand = "npm start"
-  restartPolicyType = "on-failure"
-  restartPolicyMaxRetries = 10
 
 [variables]
-  NODE_ENV = "production"
+  NODE_ENV = "production"
+  PORT = "8080"