Replaces SettingsRoutePlaceholder, completing all six placeholder routes.
- workbenchPrefs.ts: typed localStorage prefs with safe parse + live
same-tab sync (useWorkbenchPrefs). Every pref has a real consumer — no
toggle that does nothing:
* landingRoute -> consumed by the App index redirect (Navigate)
* inspectorDefaultOpen -> consumed by EvidenceProvider initial state
(EvidenceUrlSync still force-opens on a ?inspect= deep link)
- SettingsRoute: two panels. Preferences (landing route select + inspector
default switch, applied on next load, survive reload). Runtime (read-only
/runtime/status: backend, git_revision DigestBadge, engine_state_present,
checkpoint_revision, revision_warning with warning token, active_session_id,
mutation_mode) under the standing statement 'Engine configuration is
CLI-only. This page mutates nothing on the server.'
- no backend change, no new schema/subject, no NOT_YET_MIRRORED change, no
engine mutation of any kind
- bespoke conformance block (Settings has no empty state — the prefs panel
always renders); asserts the loading label + CLI-only statement + the
error contract over the status fetch
- tests: workbenchPrefs (defaults / persist+reload / invalid+malformed
fallback / partial merge) + SettingsRoute (both panels, landing-route
persistence, inspector toggle, error-without-mutation)
DEFERRED (flagged, not shipped as theater): list-density pref — honest
wiring requires threading a density token through every list row, a
separate change; shipping a control that does nothing would violate
ADR-0160 (audit-native, not analytics theater). Token-only styling
(hexScan green); full vitest 363 green.
0ff3e3b2c8