Diff: GET /api/v1/revisions/{id}/diff/{other_id} — unified diff between two revisions.
UI: <details>-based export menus on thread and node views (works without JS).
UI: Revision history link for wiki-mode namespaces.
- remarkbox_client.py: stdlib-only Python client with cookie
persistence, 3-tier config (args/env/file), CLI mode
- GET/PATCH /api/v1/user/profile: read and update display name
- GET /api/v1/clients/python: serve client for curl/wget download
- functional_test.py: idempotent live test that maintains a
journey thread documenting each run
- Remove email2 spam honeypot from API (not useful for agents)
- Bump content limit to 500k chars (~128k tokens)
