feat: add room dashboard with KPI bar and floor grid

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/Frontend-Hotel/src/services/roomService.js

@@ -0,0 +1,7 @@
+import api from "./api";
+
+export const getRoomsWithStatus = () => api.get("/rooms/status");
+export const updateRoomStatus = (id, status) => api.put(`/rooms/${id}/status`, { status });
+export const getDashboardKPIs = () => api.get("/dashboard/kpis");
+export const getWeeklyRevenue = () => api.get("/dashboard/weekly-revenue");
+export const getTodayArrivals = () => api.get("/dashboard/today-arrivals");