[daften]

Fixes #1922

Changes

• TVDB check-in (app/checkin.py): TV check-in accepts TMDB and TVDB; movies stay TMDB-only. The show's source is stored on the check-in record and sent to the Now Playing card, and pause/finish/cancel only match a record of the same source. Records without a stored source resolve as TMDB, so running check-ins survive the deploy. Callers in app/checkin_views.py, api/fork_views_detail.py and api/fork_views_playback.py pass the route/card source through.
• Calendar after a provider move (app/services/library_migration.py): the on-commit reconcile now schedules reload_calendar(item_ids=[target]), so the moved show's seasons get release events and next episode / Check-in / upcoming work right away.

Platforms

Server-only. Web and the native apps both read Check-in state from checkin.phase / the check-in API, so no client change is needed.

• Web: Structural (view and API tests; no browser run)
• iOS: Structural (shared API; not run)
• Android: Structural (shared API; not run)

Validation

• scripts/test.sh app.tests.test_checkin app.tests.test_checkin_multiple app.tests.test_checkin_session app.tests.test_tv_provider_switch api.tests.test_fork_playback_progress app.tests.test_library_migration app.tests.test_live_playback app.tests.test_anime_library_repair: all pass
• ruff check src: clean
• New tests: the show check-in suite also runs against a TVDB show (CheckInTvdbShowTests), a TMDB action can't touch a TVDB check-in, and a move schedules the target's calendar reload.
• Against a restored production backup: a TVDB show went from phase=None to idle S04E02, and start/cancel work. A TVDB→TMDB move followed by the calendar reload restores S04E02.

Risk

• api/fork_views_playback now passes the card's source to checkin.pause/finish. The view already requires it to equal the card's state source, which for a check-in card is the record's source.

🤖 Generated with Claude Code

[daften]

The red test (app, 3.12) is a single Playwright failure that looks unrelated to this change, so it most likely needs a re-run (I can't re-run jobs on this repo):

• app.tests.test_integration.IntegrationTest.test_track_modal_overlay_is_viewport_anchored_on_long_page timed out waiting for [data-track-modal-root]:visible on a TMDB movie detail page.
• This PR only changes TV check-in. Movie check-in behaves as before (checkin.supports("movie", "tmdb") and the movie phase() path are unchanged), and no templates or frontend files are touched.
• Count a whole-show rewatch once only its last season is still open #1925, cut from the same latest, passed the full app suite including this test.
• The targeted suites for the changed files (check-in, provider switch, playback, live playback, library migration; 227 tests) pass locally.

test (3.12) is the summary job and only fails because of the above.