Extracted 7 helper functions: - debugLog: Centralized debug logging - isDaemonHealthy: Fast-path health check - acquireStartLock: Lock acquisition with wait/retry - handleStaleLock: Stale lock detection - handleExistingSocket: Socket cleanup/validation - determineSocketMode: Global vs local daemon logic - startDaemonProcess: Process spawning and readiness - setupDaemonIO: I/O redirection Ref: bd-55