feat(messenger): wire the channel-roster import adapter seam

Phase D of channel-roster import. CrmMessagingAdapter.addMembers() proxies the
new crm.messenger.participant.addMany door action, enabling the SDK's '#' import
affordance in the channel/group settings panel. Pulls @insignia/iios-messaging-ui@0.1.8.

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

package-lock.json

@@ -12,7 +12,7 @@
         "@huggingface/transformers": "^4.2.0",
         "@imgly/background-removal": "^1.7.0",
         "@insignia/iios-kernel-client": "^0.1.4",
-        "@insignia/iios-messaging-ui": "^0.1.7",
+        "@insignia/iios-messaging-ui": "^0.1.8",
         "@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": "0.1.7",
-      "resolved": "https://git.lynkedup.cloud/api/packages/insignia/npm/%40insignia%2Fiios-messaging-ui/-/0.1.7/iios-messaging-ui-0.1.7.tgz",
-      "integrity": "sha512-ZE4fLeSTSa5AFZnvSRT7G/TEaw+Jm5qH8rWaDjns6Vu9zBnDTVYdF8CMEisBrtgSDj+jDQBo9xlwZmr++5qehw==",
+      "version": "0.1.8",
+      "resolved": "https://git.lynkedup.cloud/api/packages/insignia/npm/%40insignia%2Fiios-messaging-ui/-/0.1.8/iios-messaging-ui-0.1.8.tgz",
+      "integrity": "sha512-djLQtX69f8p/2v7m2qhDU7AjCsvt3mz8qzTqf7CSTVsFu1mzMZTLfdq7e4DJzZ0syw76Rhzqrhw+RysiQEpDCg==",
       "peerDependencies": {
         "@insignia/iios-kernel-client": "*",
         "react": ">=18",