- lib/mitre.ts: shared types (MitreTactic, Technique, Subtechnique, MitreTag
kind/id/external_id/name) + TanStack query keys.
- components/MitreTagPicker.tsx: three-column controlled picker (tactic →
technique → subtechnique), multi-select with chip-removal, autocomplete on
each column, ARIA labels for screen readers. Returns MitreTag[] via
value/onChange — drop-in for M5 template forms.
- pages/MitrePage.tsx: status card (version, source URL, last_sync), admin-
gated Trigger Sync button with success/error alerts, picker showcase, JSON
preview of the current selection.
- Layout adds MITRE nav link for any logged-in user; App.tsx adds the
/mitre route under RequireAuth. HomePage roadmap bumped to next: M5
templates.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
