Update OKF docs bundle, README, and CLAUDE.md for today's features

Documents the shift planning and closure/payroll modules (new tables,
routes, stores), the dark redesign, and the docker-compose-broken-host
workaround. Adds CLAUDE.md pointing agents at docs/. Translates README to
English and keeps host-specific infrastructure details out of the repo.

docs/index.md

@@ -4,11 +4,14 @@ okf_version: "0.1"
 
 # EatMe — Docházka
 
-Knowledge bundle for the EatMe bistro employee attendance-tracking system: a
-Google-SSO PWA where employees log clock-in/out and breaks, and the owner
-(admin) manages the employee whitelist and views statistics.
+Knowledge bundle for the EatMe bistro staff system: a Google-SSO PWA where
+employees log clock-in/out and breaks, sign up for shifts, and confirm
+their month; the owner (admin) manages the employee whitelist and pay
+rates, plans shifts, and runs payroll. `gscript/` at the repo root is the
+original Google Apps Script version this was ported from (kept for
+reference, not part of the running app).
 
 - [Architecture](./architecture/) — system overview, auth flow, deployment
-- [Data model](./data-model/) — SQLite tables and the attendance state machine
-- [API](./api/) — HTTP routes under `/api/auth`, `/api/attendance`, `/api/admin`
-- [Frontend](./frontend/) — Zustand stores and the TUI monochrome design system
+- [Data model](./data-model/) — SQLite tables: employees, attendance, shift planning, pay rates, closures, payroll
+- [API](./api/) — HTTP routes under `/api/auth`, `/api/attendance`, `/api/shifts`, `/api/closure`, `/api/admin`
+- [Frontend](./frontend/) — Zustand stores and the dark modern design system