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>

src/lib/crm-messaging-adapter.ts

@@ -221,7 +221,7 @@ export class CrmMessagingAdapter implements MessagingAdapter {
 
   /** The org directory — people you can start a DM/group with. Drives the "New message" picker. */
   async directory(): Promise<Person[]> {
-    const dir = await this.sdk.query<DirectoryDTO[]>("crm.messenger.directory", { kind: "all", limit: 200 });
+    const dir = await this.sdk.query<DirectoryDTO[]>("crm.messenger.directory", { kind: "all", limit: 100 });
     return dir.map((d) => ({ id: d.id, name: d.displayName, kind: d.kind }));
   }