feat: staff work schedule — weekly grid for all roles, shift assignment, day off marking

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

src/lib/api.ts

@@ -274,6 +274,19 @@ export const api = {
       req<void>('DELETE', `/api/hotels/${slug}/users/${id}`),
   },
 
+  // ── Schedule ──────────────────────────────────────────────────────────────
+  schedule: {
+    list: (slug: string, from: string, to: string) =>
+      req<ScheduleEntry[]>('GET', `/api/hotels/${slug}/schedule?from=${from}&to=${to}`),
+    upsert: (slug: string, data: {
+      user_id: string; date: string; shift_start?: string; shift_end?: string;
+      is_day_off?: boolean; notes?: string
+    }) =>
+      req<ScheduleEntry>('PUT', `/api/hotels/${slug}/schedule`, data),
+    remove: (slug: string, userId: string, date: string) =>
+      req<void>('DELETE', `/api/hotels/${slug}/schedule/${userId}/${date}`),
+  },
+
   // ── Hotels ────────────────────────────────────────────────────────────────
   hotels: {
     get: (slug: string) =>
@@ -487,6 +500,21 @@ export const api = {
   },
 }
 
+// ── Schedule ─────────────────────────────────────────────────────────────────
+
+export interface ScheduleEntry {
+  id: string
+  userId: string
+  date: string
+  shiftStart: string | null
+  shiftEnd: string | null
+  isDayOff: boolean
+  notes: string | null
+  userName: string
+  userRole: string
+  userPosition: string | null
+}
+
 // ── Payload types & converters ───────────────────────────────────────────────
 
 export interface RoomPayload {