docs: prune TODO.md to verified-open items only
Re-verified every entry against source code, not against prior docs.
Removed/marked-resolved: "Featured Products" hardcoded string (gone),
dashboard Проблема status false-positive (unhealthy only fires on real
fetch error, verified in admin-dashboard.facade.ts), Monitoring raw
dev text (fixed RC-02), cart/builder native dialogs (fixed RC-02),
legacy dead pages (deleted RC-02), dynamic-renderer "unwired" claim
(false - it's live), ~178 missing adminXxx i18n keys (re-counted,
near parity now), missing image placeholder/footer payment icons
(fixed today).
Remaining items are genuinely unverified-as-done or explicitly
deferred (backend work, WCAG contrast sign-off, bundle splitting,
Angular 22 upgrade, unpushed commits).
05c85b115d