Renders the status indicator into #vault-status-slot on sidebar mount and on
a manual ↻ button. No timer polling — get_vault_status returns cached state
and sync is user-initiated. Closes the relicario status CLI/extension parity
gap.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Moves the sidebar column out of vault.ts/vault-shell.ts into vault-sidebar.ts:
its markup (now incl. an empty #vault-status-slot footer for Phase 6), the
category nav rendering, nav-button wiring, and search. The search input gains
an 80ms trailing-edge debounce (P2 fix — it re-filtered on every keystroke).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
