feat(catchup): resolve persisted M3U archive intent through catalog access - #302

Refs #285, parent #184. Follows merged projection #301.

Scope

Completes the remaining M3U Slice E catalog/access integration only:

• provider-neutral PlaybackArchiveRequest / typed archive resolution in catalog:api;
• M3U adapter in catalog:refresh delegates to the already-accepted M3uCatchupTransportResolver;
• persisted active catchupMode/source/days/correction are supplied by RoomPlaybackCatalog.resolveIntent() only for explicit catch-up intents;
• materialized archive locator passes through the existing credential/exact-origin playback access coordinator before becoming a ResolvedPlaybackRequest;
• normalized ResolvedPlaybackTimeline is carried with the resolved request;
• PlaybackIntent.Live and existing resolveVariant() stay on the legacy Live path and cannot select an archive template;
• app Hilt composition installs the M3U archive adapter; no new player, seek, retry or provider framework is introduced.

No Room migration, Media3 URL parsing, Guide UI, Xtream catch-up, DVR, local-timeshift, or third persistent AVD.

TDD / exact-head evidence

RED is preserved at backup/catchup-285-catalog-archive-red-20260901 / 86d71bf0090aa1c5c9a841ee752ec1802fed63fd.
Clean exact head dfb4204e5b61fc5f87821b63a14747351c733b63 is 1 ahead / 0 behind accepted main@d124358bc7a3e616114cc74cc19c92e0760275fb and passed:

• Hosted validation #2050
• Hosted CI contract feat(catchup): resolve Xtream archive through existing playback intent #319
• Database migration API26/API36 matrix #641
• App TV lint feat(channels): add Manage Channels TV surface #254
• Android TV focused API36 #424

This draft PR is closed only because the connector's ready-for-review GraphQL mutation currently fails on removed GitHub field Repository.fullDatabaseId. Code/head/base are unchanged. A non-draft replacement will carry the identical qualified head; do not merge this closed draft.