Release @diskd-ai/sdk 5.2.0

Minor bump: createInboxClient().search() gains Gmail-style to/cc/
subject/before/is/has operators and exhaustive folder pagination.
Backward compatible; no public exports changed.

Add review box methods to SDK

Fix SDK notes lint

release: bump version to 5.1.12

Release 5.1.11

Release 5.1.10

Remove inbox messageRef contract

Release 5.1.8

release: v5.1.7

release: v5.1.6