fix(booking): aggregate public booking state across all schedules

The public doctor payload built `active`/`free_turn`/`hours_of_work` from the
personal schedule alone, so a doctor bookable only at a clinic was reported as
"نوبت‌دهی غیرفعال". Aggregate over every schedule instead: any schedule with
online booking on and an active day makes the doctor bookable, and the disabled
label only appears when all of them are off.

Three admin-panel fixes for the same class of bug:

- AppointmentsPage took the selected doctor from `dbUuid`, which is the clinic's
  uuid inside a clinic context — the slots request 404'd. Use `doctorUuid`.
- TurnsTimeline rendered any error or unknown empty_reason as "این روز شیفت کاری
  ندارد". Errors now surface as errors and unknown reasons get a neutral message;
  the day-off wording is reserved for an explicit day_off from the backend.
- Admins have no clinic context, so slots fell back to the personal schedule.
  They now pick a location from `appointment-booking-locations` and that choice
  drives the slot, service and create-appointment requests.

Adds `app:schedule:normalize-format` for legacy rows stored as a bare JSON list
covering only Saturday, which read as day-off for the rest of the week.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

assets/admin/components/appointments/TurnsTimeline.tsx

@@ -154,10 +154,11 @@ const EMPTY_REASON_TEXT: Record<string, { title: string; hint: string }> = {
 };
 
 export default function TurnsTimeline({
-  slots, loading, queryKey, onView, onBook, emptyReason,
+  slots, loading, queryKey, onView, onBook, emptyReason, errorMessage,
 }: {
   slots: TimelineSlot[];
   emptyReason?: string | null;
+  errorMessage?: string | null;
   loading: boolean;
   queryKey: unknown[];
   onView: (a: Appointment) => void;
@@ -175,8 +176,19 @@ export default function TurnsTimeline({
   }, [activeIndex]);
 
   if (loading) return <div style={{ padding: 40, textAlign: 'center', color: 'var(--text-3)' }}>در حال بارگذاری...</div>;
+  if (errorMessage) {
+    return (
+      <div style={{ padding: 40, textAlign: 'center' }}>
+        <div style={{ fontWeight: 700, fontSize: 15, color: 'var(--danger)' }}>خطا در دریافت برنامهٔ این روز</div>
+        <div style={{ fontSize: 12, color: 'var(--text-3)', marginTop: 4 }}>{errorMessage}</div>
+      </div>
+    );
+  }
   if (!slots.length) {
-    const reason = EMPTY_REASON_TEXT[emptyReason ?? ''] ?? EMPTY_REASON_TEXT.day_off;
+    // «شیفت کاری ندارد» فقط وقتی که backend صریحاً day_off گفته باشد؛
+    // دلیل ناشناخته/غایب نباید به تعطیلی تفسیر شود.
+    const reason = EMPTY_REASON_TEXT[emptyReason ?? '']
+      ?? { title: 'برنامهٔ این روز در دسترس نیست', hint: 'اطلاعات برنامهٔ کاری برای این روز دریافت نشد' };
     return (
       <div style={{ padding: 40, textAlign: 'center' }}>
         <div style={{ fontWeight: 700, fontSize: 15, color: 'var(--text)' }}>{reason.title}</div>