chore: document Vue avatar detector false positive

.impeccable/config.json

@@ -11,6 +11,15 @@
         ],
         "createdAt": "2026-11-02T06:04:45.274Z",
         "reason": "Agent reviewed: existing avatar images use Vue :src bindings to safeUrl, not missing image sources."
+      },
+      {
+        "rule": "broken-image",
+        "value": "*",
+        "files": [
+          "public/partials/profile.htm"
+        ],
+        "createdAt": "2026-11-02T21:13:31.062Z",
+        "reason": "False positive: avatar uses Vue :src=\"safeUrl(user.photo)\" and v-if=\"user?.photo\", not a missing static image source."
       }
     ]
   }