缓存优化

frontend/src/views/DashboardView.vue

@@ -147,9 +147,9 @@ function getPlatformColor(name: string): string {
 }
 
 function getHotLevel(score: number): { label: string; color: string; bg: string } {
-  if (score >= 50) return { label: '全网沸腾', color: '#ef4444', bg: 'rgba(239,68,68,0.15)' }
-  if (score >= 20) return { label: '高度关注', color: '#f97316', bg: 'rgba(249,115,22,0.15)' }
-  if (score >= 10) return { label: '上升中', color: '#3b82f6', bg: 'rgba(59,130,246,0.15)' }
+  if (score >= 10) return { label: '全网沸腾', color: '#ef4444', bg: 'rgba(239,68,68,0.15)' }
+  if (score >= 5) return { label: '高度关注', color: '#f97316', bg: 'rgba(249,115,22,0.15)' }
+  if (score >= 3) return { label: '上升中', color: '#3b82f6', bg: 'rgba(59,130,246,0.15)' }
   return { label: '一般关注', color: '#6b7280', bg: 'rgba(107,114,128,0.15)' }
 }
 
@@ -1171,6 +1171,7 @@ watch(() => route.query.event, (newId) => {
   gap: 10px;
   min-width: 0;
   font-size: 14px;
+  font-weight:500;
 }
 
 .platform-info i {

frontend/src/views/RevisionsView.vue

@@ -82,11 +82,14 @@ const revisionChains = computed<RevisionChain[]>(() => {
 
   const chains: RevisionChain[] = []
   for (const [event_id, items] of groups) {
+    const first = items[0]
+    const last = items[items.length - 1]
+    if (!first || !last) continue
     // 组内按时间升序
     items.sort((a, b) => safeParseTime(a.created_at) - safeParseTime(b.created_at))
 
     // 拼接标题链，避免重复（相邻记录的 revised 与下一条 previous 通常相同）
-    const titles: string[] = [items[0].previous_headline]
+    const titles: string[] = [first.previous_headline]
     const change_times: string[] = []
     for (const item of items) {
       // 若链条末尾与本条 previous 不同，说明有断层，仍然追加
@@ -100,13 +103,13 @@ const revisionChains = computed<RevisionChain[]>(() => {
 
     chains.push({
       event_id,
-      source_name: items[0].source_name,
+      source_name: first.source_name,
       titles,
       change_times,
-      first_at: items[0].created_at,
-      last_at: items[items.length - 1].created_at,
+      first_at: first.created_at,
+      last_at: last.created_at,
       change_count: items.length,
-      url: items[0].url,
+      url: first.url,
     })
   }