feat(tracking): pass question hash/text via history state and follow URL business date

Move question_hash and question_text out of the URL query into router
history state to keep tracking question links clean, and make the
tracking dashboard's business date follow the URL/today instead of the
previously persisted localStorage value.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/admin-web/src/views/TrackingView.vue

@@ -101,12 +101,12 @@ const allQuestionOptionValue = 'all'
 
 const selectedQuestionId = useStorage<number | null>('tracking_selected_question', null)
 const selectedPlatformId = useStorage<string>('tracking_selected_ai_platform_id', 'all')
-const selectedBusinessDate = useStorage<string>('tracking_selected_business_date', trackingToday)
+const selectedBusinessDate = ref<string>(
+  normalizeTrackingBusinessDate(route.query.business_date) ?? trackingToday,
+)
 const selectedCitationWindowDays = useStorage<number>('tracking_selected_citation_window_days', 7)
 
 selectedPlatformId.value = normalizeMonitoringPlatformFilter(selectedPlatformId.value)
-selectedBusinessDate.value =
-  normalizeTrackingBusinessDate(selectedBusinessDate.value) ?? trackingToday
 selectedCitationWindowDays.value = normalizeCitationWindowDays(selectedCitationWindowDays.value)
 
 const selectedQuestionSetOptionValue = computed<string | number>({
@@ -168,10 +168,7 @@ watch(selectedBrandId, (newId, oldId) => {
 watch(
   () => route.query.business_date,
   (value) => {
-    const requestedBusinessDate = normalizeTrackingBusinessDate(value)
-    if (requestedBusinessDate) {
-      selectedBusinessDate.value = requestedBusinessDate
-    }
+    selectedBusinessDate.value = normalizeTrackingBusinessDate(value) ?? trackingToday
   },
   { immediate: true },
 )
@@ -636,13 +633,13 @@ function openQuestion(question: MonitoringHotQuestion): void {
       questionId: String(question.question_id),
     },
     query: {
-      question_hash: question.question_hash,
-      question_text: question.question_text,
       business_date: selectedBusinessDate.value,
-      date_from: selectedBusinessDate.value,
-      date_to: selectedBusinessDate.value,
       ...(selectedPlatformId.value !== 'all' ? { ai_platform_id: selectedPlatformId.value } : {}),
     },
+    state: {
+      tracking_question_hash: question.question_hash,
+      tracking_question_text: question.question_text,
+    },
   })
 }