Root cause: k8s Service named 'comfyui' auto-injects COMFYUI_PORT=tcp://... into pod env, clobbering ai-dock's own COMFYUI_PORT variable which expects a port number. This broke caddy's proxy config, leaving port 8188 dead. Fix: enableServiceLinks: false, revert to port 8188 (ai-dock default). Also bump startup probe failureThreshold 60->120 (20min budget for model loading).