fix(aihr): align task labels and training duration

mobile-uni/src/pages/user/practice/index.vue

@@ -62,6 +62,9 @@
         <view v-for="item in recentPracticeItems" :key="item.id" class="assignment-row recent-row" :class="{ highlighted: item.assignment && highlightedAssignmentId === item.assignment.id }" @click="openRecentItem(item)">
           <view class="recent-icon" aria-hidden="true">{{ item.icon }}</view>
           <view class="assignment-copy">
+            <text v-if="item.sourceLabel" class="assignment-badge" :class="item.assignment?.source || 'manual'">
+              {{ item.sourceLabel }}
+            </text>
             <text class="assignment-title">{{ item.title }}</text>
             <text class="assignment-desc">{{ item.desc }}</text>
           </view>
@@ -271,6 +274,7 @@ type RecentPracticeItem = {
   id: string;
   title: string;
   desc: string;
+  sourceLabel?: string;
   status: string;
   icon: string;
   assignment?: PracticeAssignment;
@@ -334,6 +338,7 @@ const recentPracticeItems = computed<RecentPracticeItem[]>(() => {
       id: `assignment-${item.id}`,
       title: item.question || item.scenarioName || '专项训练',
       desc: item.status === '已完成' ? '已完成' : '待复盘',
+      sourceLabel: assignmentSourceLabel(item.source),
       status: item.status,
       icon: item.scenarioName?.includes('催费') ? '⌕' : item.scenarioName?.includes('报修') ? '⌁' : '◉',
       assignment: item
@@ -370,6 +375,12 @@ const assignmentDesc = (item: PracticeAssignment) => {
   return item.feedback || item.reason;
 };
 
+const assignmentSourceLabel = (source?: string) => {
+  if (source === 'retry') return '错题再练';
+  if (source === 'camp') return '训练营';
+  return '专项训练';
+};
+
 const goLogin = () => {
   rememberLoginRedirect('/pages/user/practice/index');
   uni.navigateTo({ url: '/pages/auth/login/index' });