- PlexSidebar activeCount now compares the HEALED sort, so an out-of-scope key
(movie "duration" after switching to shows) no longer inflates the
active-filter badge while the control + grid show the default.
- PlexProvider strips the legacy `sortDir` from the filters blob, so it stops
leaking into the facets query key and being re-persisted on every change.
- PlexProvider sort migration guards the fall-through: valid JSON that isn't a
SortState now falls back instead of using the raw JSON string as the key.
- New shared healPlexSort(sort, scope) is the single heal both PlexBrowse and
PlexSidebar use (removes the noop-label plexSortOptions call + the duplication).
- Tests: useSortState.dom.test.ts (hydrate/persist/heal round-trip via renderHook)
and SortControl.dom.test.tsx (options, pick, direction toggle, directionless,
trailing). vitest 94 -> 105.
Gate green: tsc/eslint(0 err)/prettier/knip clean, vitest 105.