feat(admin): build the last two screens, and pin spacing with a test

The cancellation policy page showed only the tenant policy, so nothing said
which services opt out of it. Service policies do not blend with the tenant one
— a service that has its own follows it completely — and without the table an
operator cannot tell why one service's penalty differs. It lists them with a
link to each service.

The waitlist had the matches endpoint and no way to reach it. The list answers
"who is waiting"; the question asked when capacity frees up is "who is waiting
for this slot", so the page now takes a service and a date and answers that.
The note says plainly that cancelling notifies them anyway — this is for
looking before deciding, not a second notification path.

Spacing is enforced at hold time rather than during candidate generation, which
costs one slot being shown and then refused, and saves a patient-history query
per candidate. That trade had no test; now a booking five days after the last
one is refused and one thirty days later goes through.

Checklists across all sixteen tasks are final: no pending rows, and the
warnings that remain are recorded decisions — one resolver instead of six
engines, a closed list instead of a registry, sample size three instead of ten
— each with the reason it was taken.

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

assets/admin/pages/CancellationPolicyPage.tsx

@@ -4,6 +4,8 @@ import PriceInput from '../components/ui/PriceInput';
 import SearchableSelect from '../components/ui/SearchableSelect';
 import { usePermissions } from '../hooks/usePermissions';
 import { useCancellationPolicy } from '../hooks/useCancellation';
+import { Link } from 'react-router-dom';
+import { formatNumber, formatRial } from '../lib/utils';
 
 const MODES = [
   { value: 'none', label: 'بدون جریمه' },
@@ -18,7 +20,7 @@ const MODES = [
  * کسب‌وکاری است، نه چیزی که کسی تصادفی روشنش کند.
  */
 export default function CancellationPolicyPage() {
-  const { policy, loading, save } = useCancellationPolicy();
+  const { policy, overrides, loading, save } = useCancellationPolicy();
   const { can } = usePermissions();
   const canManage = can('appointment_settings', 'update');
 
@@ -160,6 +162,55 @@ export default function CancellationPolicyPage() {
           </div>
         )}
       </div>
+
+      {/* سیاست سرویس و سیاست محیط **ترکیب نمی‌شوند** — سرویس اگر سیاست دارد، همه‌اش
+          مال اوست. بدون این جدول، اپراتور نمی‌داند کدام خدمت‌ها از قاعدهٔ عمومی
+          پیروی نمی‌کنند و چرا عدد جریمهٔ آن‌ها فرق دارد. */}
+      <div className="card card-pad" style={{ marginTop: 16, maxWidth: 640 }}>
+        <h3 style={{ fontSize: 14, margin: '0 0 4px' }}>سیاست‌های اختصاصی خدمات</h3>
+        <p style={{ fontSize: 12, color: 'var(--text-3)', margin: '0 0 12px', lineHeight: 1.9 }}>
+          خدمتی که سیاست خودش را دارد، **کاملاً** از آن پیروی می‌کند و سیاست بالا رویش
+          اثری ندارد. ساخت و ویرایشش از صفحهٔ همان خدمت انجام می‌شود.
+        </p>
+
+        {overrides.length === 0 ? (
+          <span style={{ fontSize: 13, color: 'var(--text-3)' }}>
+            هیچ خدمتی سیاست اختصاصی ندارد؛ همه از سیاست بالا پیروی می‌کنند.
+          </span>
+        ) : (
+          <div style={{ display: 'flex', flexDirection: 'column', gap: 8, fontSize: 13 }}>
+            {overrides.map((o) => (
+              <div
+                key={o.uuid}
+                style={{ display: 'flex', gap: 12, flexWrap: 'wrap', alignItems: 'center' }}
+              >
+                <Link
+                  to={`/admin/clinic-services/${o.service_uuid}`}
+                  style={{ fontWeight: 600, color: 'var(--primary)' }}
+                >
+                  {o.service_name ?? o.service_uuid}
+                </Link>
+                <span style={{ color: 'var(--text-2)' }}>
+                  رایگان تا {formatNumber(o.free_window_hours)} ساعت قبل
+                </span>
+                <span style={{ color: 'var(--text-2)' }}>
+                  {o.penalty_mode === 'none'
+                    ? 'بدون جریمه'
+                    : o.penalty_mode === 'percent'
+                      ? `جریمه ${formatNumber(o.penalty_value)}٪`
+                      : `جریمه ${formatRial(o.penalty_value)}`}
+                </span>
+                {!o.active && (
+                  <span className="badge red">
+                    <span className="bdot" />
+                    غیرفعال
+                  </span>
+                )}
+              </div>
+            ))}
+          </div>
+        )}
+      </div>
     </div>
   );
 }