Market View: % suffix on price index badge, poll scrape completion for auto-refresh

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

frontend/src/pages/MarketView.tsx

@@ -1,4 +1,4 @@
-import React, { useState, useMemo, useCallback } from 'react'
+import React, { useState, useMemo, useCallback, useEffect } from 'react'
 import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query'
 import api from '../api'
 
@@ -922,18 +922,42 @@ const RateMatrixTab: React.FC = () => {
   const [showDirect, setShowDirect] = useState(false)
   const queryClient = useQueryClient()
 
+  // The scrape endpoint returns immediately (runs in background), so we watch
+  // scraper status until a new batch finishes, then refetch the matrix.
+  const [scrapeWatch, setScrapeWatch] = useState<{ prevBatch: string | null, startedAt: number } | null>(null)
+
   const dateScrapeM = useMutation({
     mutationFn: async (d: string) => {
+      const st = (await api.get('/competitors/status')).data as ScraperStatus
       setScrapingDate(d)
+      setScrapeWatch({ prevBatch: st?.last_scrape?.batch_id ?? null, startedAt: Date.now() })
       return (await api.post('/competitors/scrape', { from_date: d, to_date: d })).data
     },
-    onSuccess: () => {
+    onError: () => {
+      setScrapingDate(null)
+      setScrapeWatch(null)
+    },
+  })
+
+  const { data: watchStatus } = useQuery<ScraperStatus>({
+    queryKey: ['scraper-status'],
+    queryFn: async () => (await api.get('/competitors/status')).data,
+    enabled: scrapeWatch !== null,
+    refetchInterval: scrapeWatch !== null ? 5000 : false,
+  })
+
+  useEffect(() => {
+    if (!scrapeWatch) return
+    const ls = watchStatus?.last_scrape
+    const finished = ls && ls.batch_id !== scrapeWatch.prevBatch && ls.status !== 'running'
+    const timedOut = Date.now() - scrapeWatch.startedAt > 10 * 60 * 1000
+    if (finished || timedOut) {
       queryClient.invalidateQueries({ queryKey: ['competitor-matrix'] })
       queryClient.invalidateQueries({ queryKey: ['scraper-status'] })
       setScrapingDate(null)
-    },
-    onError: () => setScrapingDate(null),
-  })
+      setScrapeWatch(null)
+    }
+  }, [watchStatus, scrapeWatch, queryClient])
 
   const onCellEnter = useCallback((row: number, col: number) => {
     setHoveredCell({ row, col })
@@ -1229,7 +1253,7 @@ const RateMatrixTab: React.FC = () => {
                         priceIndexBadge = (
                           <span style={{ display: 'block', fontSize: 9, fontWeight: 700, color: fg, background: bg,
                             borderRadius: 4, padding: '0 3px', lineHeight: '14px', marginTop: 1 }}>
-                            {idx}
+                            {idx}%
                           </span>
                         )
                       }