Resolves the deferred clearDevice security gap: logout never removed the E2EE
private key from IndexedDB, so on a shared machine the conversations stayed
decryptable after sign-out (ChatDock auto-unlocks from the persisted key next
visit). Per the user's decision (clear on EVERY logout), NavSidebar.logout() now
awaits e2ee.clearDevice(me.id) before reload — guarded so an IndexedDB failure
(e.g. private mode) can never block the logout. Re-entering the message
passphrase is required on the next visit.
Resolves the Phase-1 NEEDS-DECISION #3 (clearDevice) + retires the last e2ee
unused export (knip now only flags loadDefaultViewFilters). tsc green, re-review
clean (found + fixed an idb-open throw path blocking logout).
peter
856f39642f