fix(inbox/messenger): directory limit 100 (was 400ing) + attachment download

- crm.messenger.directory limit 200 -> 100 (be-crm caps at 100, was 400 Bad
  Request) in both the inbox + messaging adapters.
- CrmInboxAdapter.downloadAttachment via crm.media.presignDownload, so mail
  attachments are downloadable. Pull SDK 0.1.1.

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

package.json

@@ -11,7 +11,7 @@
   "dependencies": {
     "@abe-kap/appshell-sdk": "^0.2.6",
     "@insignia/iios-kernel-client": "^0.1.4",
-    "@insignia/iios-messaging-ui": "^0.1.0",
+    "@insignia/iios-messaging-ui": "^0.1.1",
     "clsx": "^2.1.1",
     "lucide-react": "^1.21.0",
     "next": "16.2.9",