deploy(chat): roll chat-web to v20260619-proofjay-78b1f5f (Proof Jay companion packs)

proof-jay + proof-jay-helpdesk personalities (FlowerCore.Chat master@d48e668).
Image localhost/fc-chat-web:v20260619-proofjay-78b1f5f (arm64) imported to GX10 containerd.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

apps-gx10/fc-chat/deployment-chat-web.json

@@ -83,7 +83,7 @@
                 }
               }
             ],
-            "image": "localhost/fc-chat-web:v20260619-sec3-5a8859b",
+            "image": "localhost/fc-chat-web:v20260619-proofjay-78b1f5f",
             "imagePullPolicy": "Never",
             "livenessProbe": {
               "failureThreshold": 3,