1000ed3a4f
Renamed two Arabic sidebar tab labels in the protocol (room-booking) module in artifacts/tx-os/src/locales/ar.json: - protocol.tabs.bookings: "حجوزات القاعات" → "حجز القاعات" - protocol.tabs.external: "اللقاءات الخارجية" → "اجتماعات خارجية" English translations left unchanged. The chart label "اللقاءات الخارجية حسب الحالة" was left as-is per the task's out-of-scope note. Text-only change, no logic touched.