- Fix gRPC health checks: Set serving status for default service (empty string) in all services - Consul checks the default service by default, not specific service names - All services now set both default and specific service status to SERVING - Update Consul registration logic to automatically detect HTTP vs gRPC services - HTTP services (API Gateway) use HTTP health checks - gRPC services use gRPC health checks - Detection based on service tags and metadata - Add API Gateway Consul registration - Register with Docker service name in Docker environment - Use HTTP health checks for API Gateway - Proper host/port configuration handling - Add API Gateway HTTP-to-gRPC handlers - Implement service-specific handlers for Auth and Identity services - Translate HTTP requests to gRPC calls - Map gRPC error codes to HTTP status codes