fix(comfyui): correct port 8188->18188, add TLS ingress at comfyui.riotpiao.com (#44)

## Problem
ComfyUI pod restarting 273+ times over 45h. Startup probe failed every time.

## Root Cause
ai-dock image runs ComfyUI on port 18188 (adds 10000 to configured port), not 8188. Caddy does NOT proxy 8188->18188.

## Fix
- deployment: containerPort, probes -> 18188
- service: targetPort -> 18188
- ingress: TLS at comfyui.riotpiao.com, WebSocket headers
- CoreDNS: rewrite comfyui.riotpiao.com

## Post-merge
CoreDNS rewrite needs terraform apply + make apply-cp.
Cloudflare DNS: add CNAME comfyui.riotpiao.com -> tunnel.Reviewed-on: #44

Co-authored-by: rock <[email protected]>

k8s/apps/comfyui/deployment.yaml

@@ -26,13 +26,15 @@ spec:
         - name: comfyui
           image: ghcr.io/ai-dock/comfyui:v2-cuda-12.1.1-base-22.04
           ports:
-            - containerPort: 8188
+            - containerPort: 18188
               protocol: TCP
           env:
             - name: NVIDIA_VISIBLE_DEVICES
               value: "all"
-            - name: COMFYUI_FLAGS
-              value: "--listen 0.0.0.0 --port 8188"
+            # ai-dock adds 10000 to port: ComfyUI listens on 18188 (localhost)
+            # caddy is NOT configured to proxy 8188->18188 in this image
+            - name: COMFYUI_PORT_HOST
+              value: "18188"
           resources:
             requests:
               cpu: "4"
@@ -50,13 +52,13 @@ spec:
           readinessProbe:
             httpGet:
               path: /
-              port: 8188
+              port: 18188
             periodSeconds: 10
             initialDelaySeconds: 30
           startupProbe:
             httpGet:
               path: /
-              port: 8188
+              port: 18188
             failureThreshold: 60
             periodSeconds: 10
       volumes: