Settings → API Tokens: each agency token gets an "Edit playlists" control that opens the
playlist picker pre-checked with the token's CURRENT designations (from the list GET's
tok.targets), lets the admin add/remove, and calls the existing PUT /:id/targets to
atomically re-designate. Reuses the creation picker pattern; common.save/cancel reused;
edit_targets + targets_updated i18n across all 5 locales. No security-model change - the
endpoint was already proven.
Test (integration): PUT /:id/targets re-designates (add + remove) and the confinement
follows the NEW set - a re-designated token reaches only its new playlists (router.param
403s the removed one). 148 suite green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>