Add 'Run Scheduled Scrape Now' button + clarify manual scrape mode

Backend: POST /competitors/scrape/scheduled triggers run_scheduled_booking_scrape
in a background task — repopulates the queue with today's high/medium/low
priority dates and processes it. Returns 400 if scraper is disabled, 409 if
already running.

Frontend: button in the Automatic Schedule card to trigger the scheduled job
manually (useful after an interrupted overnight run). Manual Scrape description
now shows which backend mode is active (hotel-page vs search-results) so it's
clear what the date range scrape actually does.

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

frontend/src/pages/MarketView.tsx

@@ -386,6 +386,14 @@ const SettingsTab: React.FC = () => {
     },
   })
 
+  const scheduledScrapeMutation = useMutation({
+    mutationFn: async () => (await api.post('/competitors/scrape/scheduled')).data,
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: ['scraper-status'] })
+      queryClient.invalidateQueries({ queryKey: ['scrape-history'] })
+    },
+  })
+
   return (
     <div style={styles.settingsGrid}>
       {/* Location Configuration */}
@@ -530,13 +538,45 @@ const SettingsTab: React.FC = () => {
             </div>
           </div>
         )}
+
+        <div style={{ marginTop: '16px', borderTop: '1px solid var(--border)', paddingTop: '16px' }}>
+          <p style={styles.cardDescription}>
+            Re-runs today's full scheduled job — repopulates the queue with all high/medium/low priority
+            dates and processes it. Use after an interrupted scheduled scrape.
+          </p>
+          <button
+            onClick={() => scheduledScrapeMutation.mutate()}
+            disabled={scheduledScrapeMutation.isPending || !status?.enabled || !status?.location_configured}
+            style={mergeStyles(
+              buttonStyle('secondary'),
+              { opacity: (!status?.enabled || !status?.location_configured) ? 0.5 : 1 }
+            )}
+          >
+            {scheduledScrapeMutation.isPending ? 'Starting...' : 'Run Scheduled Scrape Now'}
+          </button>
+          {scheduledScrapeMutation.isSuccess && (
+            <p style={{ color: 'var(--success)', fontSize: '13px', marginTop: '8px' }}>
+              Scheduled scrape triggered. Check status for progress.
+            </p>
+          )}
+          {scheduledScrapeMutation.isError && (
+            <p style={styles.errorText}>
+              {(scheduledScrapeMutation.error as any)?.response?.data?.detail || 'Failed to trigger scrape'}
+            </p>
+          )}
+        </div>
       </div>
 
       {/* Manual Scrape */}
       <div style={styles.card}>
         <h3 style={styles.cardTitle}>Manual Scrape</h3>
         <p style={styles.cardDescription}>
-          Trigger a one-off competitor rate scrape for a date range. Runs in background.
+          Scrape a specific date range on demand. Uses the{' '}
+          <strong>{status?.backend === 'playwright_hotel_page' ? 'hotel-page' : 'search-results'}</strong>{' '}
+          backend (same as scheduled) — {status?.backend === 'playwright_hotel_page'
+            ? 'fetches all rate plans for each tracked hotel.'
+            : 'searches the configured location and discovers market hotels.'
+          }
         </p>
         <div style={styles.formRow}>
           <div style={styles.formGroup}>