Rewrites item-detail.ts to dispatch on item.type: login gets the full
detail view (url, username, masked password + copy, TOTP with 30s
countdown, notes, group, autofill/edit/trash/back buttons). Non-login
types get a coming-soon placeholder; those grow full UIs in later slices.
Fixes Slice 4 review I1: the old autofill path sent a malformed
fill_credentials payload ({ username, password } — no id/capturedTab).
The new handler uses the (capturedTabId, capturedUrl) pair snapshotted
at popup-open and calls fill_credentials with { id, capturedTabId,
capturedUrl }, matching the SW's handler signature that enforces the
M5 + TOCTOU checks.
TOTP poll now calls get_totp on a 1s timer and renders the 30s countdown
bar against expires_at. @ts-nocheck removed.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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