7d0ea4e388
Add POST /pools/{id}/views, mirroring the file-view endpoint: it
enforces view ACL and appends a row to activity.pool_views (viewed_at
defaults to statement_timestamp(), so each view is its own history row).
The table existed but nothing wrote to it.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>