Documents:
- Staged migration path (10.10.3 -> 10.10.7 -> 10.11.8). Direct skip is
unsupported per jellyfin#15027/#15244/#15293/#15504.
- Snapshots at /home/user/snapshots/.
- Schema diffs (library.db consolidated into jellyfin.db, ffmpeg 7.1.3).
- Theme swap: Cineplex v1.0.6 -> scyfin OLED (the only top-tier 10.11.x
theme with active 10.11 branch + zero open compat bugs).
- The 10.10.3 home-section bug (CustomPrefs write but no HomeSection row)
is fixed in 10.11.8 when POST body includes a HomeSections array.
Verified end-to-end with test user.
- Outstanding work before promoting dev to prod.
- Rollback procedure (EF Core migrations are forward-only).
