fix(appointments): a resource is a view inside its doctor, and never slot-based

Two reported bugs, one root cause: resource tabs were built as a rival selection
to the doctor rather than a narrower view within them.

Selecting a resource cleared the doctor. The auto-select effect then quietly put
the *first* doctor back, so anyone working under the second doctor was thrown to
the first and lost that doctor's own booking. Selecting a resource now leaves the
doctor alone; only picking a doctor clears the resource.

A resource tab also still rendered the doctor's slot timeline, just with no data.
Resources have no slotted weekly schedule — their calendar comes from service
duration and real occupancy — so showing a slot grid promises times the booking
engine does not recognise. The resource tab now renders its own panel: that day's
appointments on the resource plus a service booking entry point.

Both regressions are pinned by tests, and both were checked by reverting each fix
in turn. The first attempt at the doctor-retention test passed even with the bug
restored, because the auto-select effect masked it; it was rewritten to use the
second doctor, where the bounce is observable.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

assets/admin/pages/AppointmentsPage.tsx

@@ -24,10 +24,9 @@ import TurnsStatInfo from '../components/appointments/TurnsStatInfo';
 import TurnsViewToggle from '../components/appointments/TurnsViewToggle';
 import type { TurnsViewMode } from '../components/appointments/TurnsViewToggle';
 import DoctorTabs from '../components/appointments/DoctorTabs';
-/** هیچ تبی فعال نیست — وقتی تب منبع انتخاب شده، نوار پزشکان نباید هایلایت داشته باشد. */
-const NO_ACTIVE_TAB = '\u0000';
 import { useResources } from '../hooks/useResources';
 import ResourceBookingModal from '../components/appointments/ResourceBookingModal';
+import ResourceDayPanel from '../components/appointments/ResourceDayPanel';
 import { useUrlState } from '../hooks/useUrlState';
 import TurnsTimeline from '../components/appointments/TurnsTimeline';
 import TurnsTable from '../components/appointments/TurnsTable';
@@ -533,20 +532,20 @@ export default function AppointmentsPage() {
    * وقتی خودِ تب منبع فعال است `selectedDoctorUuid` خالی می‌شود، پس ناظرِ همان منبع
    * مبنا قرار می‌گیرد — وگرنه نوار منابع زیر پای کاربر خالی می‌شد.
    */
-  const supervisorFilterUuid = selectedDoctorUuid
-    || bookableResources.find((r) => r.uuid === selectedResourceUuid)?.supervisor?.uuid
-    || '';
-  const supervisedResources = supervisorFilterUuid
-    ? bookableResources.filter((r) => r.supervisor?.uuid === supervisorFilterUuid)
+  const supervisedResources = selectedDoctorUuid
+    ? bookableResources.filter((r) => r.supervisor?.uuid === selectedDoctorUuid)
     : [];
 
   const [bookingResource, setBookingResource] = useState<ClinicResource | null>(null);
   const activeResource = bookableResources.find((r) => r.uuid === selectedResourceUuid) ?? null;
 
-  const selectResource = (uuid: string) => {
-    setUrlState({ resource: uuid });
-    if (uuid) setSelectedDoctorUuid('');
-  };
+  /**
+   * منبع زیرمجموعهٔ پزشک است، نه رقیبش: انتخاب یک منبع فقط نما را داخل همان پزشک
+   * تنگ می‌کند. پاک کردن پزشک، نوبت‌دهی خودِ او را از دسترس خارج می‌کرد.
+   */
+  const selectResource = (uuid: string) => setUrlState({ resource: uuid });
+
+  /** برگشت به خودِ پزشک: نمای منبع بسته می‌شود. */
   const selectDoctor = (uuid: string) => {
     setSelectedDoctorUuid(uuid);
     if (selectedResourceUuid) setUrlState({ resource: '' });
@@ -879,7 +878,7 @@ export default function AppointmentsPage() {
           {showDoctorTabs && (
             <DoctorTabs
               doctors={doctors}
-              selected={selectedResourceUuid ? NO_ACTIVE_TAB : selectedDoctorUuid}
+              selected={selectedDoctorUuid}
               onSelect={selectDoctor}
               showAll={isAdmin}
             />
@@ -915,6 +914,17 @@ export default function AppointmentsPage() {
                   </div>
                 )}
               </>
+            ) : activeResource ? (
+              /* منبع اسلات ندارد: تقویمش سرویسی است، پس تایم‌لاین اسلاتیِ پزشک اینجا
+                 اصلاً رندر نمی‌شود — فهرست نوبت‌های همین منبع و یک ورودیِ سرویسی. */
+              <ResourceDayPanel
+                resource={activeResource}
+                appointments={filteredAppointments}
+                loading={apptQuery.isLoading}
+                canCreate={!isRepresentation && canCreateAppt}
+                onBook={() => setBookingResource(activeResource)}
+                onView={openDetail}
+              />
             ) : (
               <>
                 {!selectedDoctorUuid ? (