feat(appointment): add getMonthAvailability request wrapper

Public wrapper for GET /api/v1/appointment-settings/month-availability
/{doctor_uuid}?year=&month= so the calendar can learn which days are
bookable.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

services/response.js

@@ -64,6 +64,11 @@ export const request = {
       `api/v1/appointment-slots?doctor_uuid=${doctor_uuid}&date=${date}`,
       removeTokenHead
     ),
+  getMonthAvailability: (doctor_uuid, year, month) =>
+    api.get(`api/v1/appointment-settings/month-availability/${doctor_uuid}`, {
+      params: { year, month },
+      ...removeTokenHead,
+    }),
   postAppointment: (data) => api.post(`api/v1/appointment`, data, { requireAuth: true }),
   getMyAppointments: (userId, params) => api.get(`api/v1/appointment/my-appointments/${userId}`, { params, requireAuth: true }),
   postAppointmentPayment: (data) =>