feat(dashboard): live notifications phase 1 — presence, live unread, in-app toasts

Shared RealtimeProvider opens ONE dashboard-wide IIOS message socket reused by
the messenger tab and the new NotificationCenter. CrmMessagingAdapter gains
setFocus (drives presence/push suppression) and subscribeActivity (joins all
of the caller's threads, fans out incoming messages). NotificationCenter shows
a clickable toast on new messages when you're not on the messenger tab and
deep-links to the conversation. Pulls @insignia/iios-messaging-ui@0.1.7.

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

package-lock.json

@@ -12,7 +12,7 @@
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         "@imgly/background-removal": "^1.7.0",
         "@insignia/iios-kernel-client": "^0.1.4",
-        "@insignia/iios-messaging-ui": "^0.1.6",
+        "@insignia/iios-messaging-ui": "^0.1.7",
         "@photo-gallery/sdk": "file:./vendor/photo-gallery-sdk",
         "@tensorflow-models/coco-ssd": "^2.2.3",
         "@tensorflow/tfjs": "^4.22.0",
@@ -1087,9 +1087,9 @@
       }
     },
     "node_modules/@insignia/iios-messaging-ui": {
-      "version": "0.1.6",
-      "resolved": "https://git.lynkedup.cloud/api/packages/insignia/npm/%40insignia%2Fiios-messaging-ui/-/0.1.6/iios-messaging-ui-0.1.6.tgz",
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+      "version": "0.1.7",
+      "resolved": "https://git.lynkedup.cloud/api/packages/insignia/npm/%40insignia%2Fiios-messaging-ui/-/0.1.7/iios-messaging-ui-0.1.7.tgz",
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       "peerDependencies": {
         "@insignia/iios-kernel-client": "*",
         "react": ">=18",