add platform pages

TODO.md

@@ -9,8 +9,8 @@
 - [ ] Optional hardening: server-side session verification on checkout return (`checkout.sessions.retrieve` reusing webhook apply logic) — only if SSE/webhook lag ever becomes a real problem (currently event-driven via PB realtime, see MEMORY 2026-08-22)
 
 ### Platform admin
-- [ ] Platform-admin UI for managing `accesscodes` globally (create/disable/delete access codes AND trial codes) — currently superuser/DB only. Natural home: `/admin` (has Platform Flags card already).
-- [ ] `/admin` Families table: name link and "Dashboard"/"View" are duplicates after the broken-link fix — tidy up.
+- [x] Platform-admin UI shipped on `/admin`: issue codes (auto-gen XXXX-XXXX values), enable/disable/delete (delete blocked while in use), usage counts, trial vs access typing; stats now include chores completed / active subs / paused-gated / active codes; families table shows plan+paused state. Remaining polish: table link duplication.
+- [ ] `/admin` Families table: name link and "View" are duplicates after the broken-link fix — tidy up.
 
 ### App / UX
 - [ ] Signup wizard: `?plan=` param only pre-highlights the tier at step 4 — confirm whether it should auto-scroll/pulse instead