- sync-case-state browser and stale-refresh tests use lastPickedCase (the stale test now fails without its guard)
- saveLastUsedCase runs on the case-sync chain, and the follow is skipped while this device's own pick was not stored
- _caseStateSyncOn tolerates a harness without loadAppSettingsFromStorage
- lastPickedCase added to the config-backup volatile-key test and docs; rename rollback tests cover caseSettings and lastPickedCase
- wiki row moved to System
- follow lastPickedCase (written by saveLastUsedCase while sync is on), not lastUsedCase, so a quick-start or an agent's spawned worker no longer moves other devices
- close the open case-options popover when the follow or an import changes what it shows; follow through selectQuickStartCase(save:false)
- failed save reuses _noteSettingsWriteResult and says the choice lasts until the next sync
- rename undo renames the shared entry back instead of restoring the whole map; lastPickedCase follows a rename
- caseSettings and lastPickedCase added to the redaction, rename and backup-volatile lists and the docs
- session-ui.js: no GET /api/settings on a tab return unless this device's cached syncCaseState is true
- system-routes.ts: caseSettings is merged only while syncCaseState is true (as stored or set by the same PUT)
- sync-case-state tests cover both; wiki notes the stored options stay when sync is turned off
- Redact caseSettings for non-admins and never apply a shared map on a read-only page (CASE-SYNC-001)
- Send one case per save and merge it inside mutateSettingsFile, so devices cannot discard each other's cases; rapid saves keep their order (CASE-SYNC-002)
- Check HTTP status and the response body, keep the local choice, report an unsynced save and reuse the forbidden-write handling (CASE-SYNC-003)
- Let the server decide whether sync is on: refresh the cached switch, discard stale refreshes (CASE-SYNC-004)
- Carry shared options through case rename and drop them on delete or unlink
- Give the switch an accessible name; add server, client and two-browser tests
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Devvyn