- ARCHITECTURE.md: fix diagram (Server Detail was "planned", now complete), expand
frontend directory listing with all 5 pages, all server components, all hooks
- FRONTEND.md: note planned terrain/display_name/workshop_id fields on Mission/Mod
types; add planned hooks table for Phases 1-5 of UX enhancement plan
- MODULES.md: annotate PlayerRepository with get_by_slot() and ThreadRegistry with
get_rcon_client() as planned additions in Phase 4
- API.md: add "Upcoming Endpoints" section documenting all planned routes for
Phases 1-5 of the UX enhancement plan
- README.md: update unit test count (69 → ~120), update frontend structure comment
to list all current pages/components/hooks