feat(practice): complete five-position training operations

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

@@ -180,7 +180,7 @@
       <view class="chat-head">
         <view class="chat-head-row">
           <text class="chat-title">{{ activeScenarioName }}</text>
-          <text class="chat-context">{{ realtimeActive ? `实时 · ${realtimeStatusLabel}` : `第 ${Math.min(roundIndex + 1, 3)}/3 轮` }}</text>
+          <text class="chat-context">{{ realtimeActive ? `实时 · ${realtimeStatusLabel}` : `第 ${Math.min(roundIndex + 1, activeRoundCount)}/${activeRoundCount} 轮` }}</text>
         </view>
         <view v-if="hasCoachState" class="coach-strip">
           <view class="coach-metric">
@@ -425,6 +425,7 @@ const storedRealtimeVoice = uni.getStorageSync(realtimeVoiceStorageKey);
 const status = ref<PracticeStatus>('idle');
 const sessionId = ref('');
 const roundIndex = ref(0);
+const activeRoundCount = ref(3);
 const draft = ref('');
 const message = ref('');
 const turns = ref<PracticeTurn[]>([]);
@@ -508,7 +509,7 @@ const practicePageTitle = computed(() => {
 });
 const practicePageSubtitle = computed(() => {
   if (practiceView.value === 'result') return `${activeScenarioName.value} · ${Math.max(roundIndex.value, 1)} 轮对话`;
-  if (practiceView.value === 'active') return `${activeScenarioName.value} · 第 ${Math.min(roundIndex.value + 1, 3)}/3 轮`;
+  if (practiceView.value === 'active') return `${activeScenarioName.value} · 第 ${Math.min(roundIndex.value + 1, activeRoundCount.value)}/${activeRoundCount.value} 轮`;
   return '先掌握要点，再开始场景练习';
 });
 const canStartPractice = computed(() => status.value === 'idle' || status.value === 'finished');
@@ -794,6 +795,7 @@ const clearPracticeData = () => {
   satisfactionSubmitted.value = false;
   sessionId.value = '';
   roundIndex.value = 0;
+  activeRoundCount.value = 3;
   draft.value = '';
   status.value = 'idle';
   selectedScenarioId.value = defaultScenarioId;
@@ -1284,6 +1286,7 @@ const start = async (scenarioId = defaultScenarioId, assignmentId?: number) => {
   trustScore.value = 0;
   redFlagActive.value = false;
   roundIndex.value = 0;
+  activeRoundCount.value = 3;
   activeAssignmentId.value = assignmentId;
   try {
     const data = await startPractice(scenarioId, assignmentId);
@@ -1291,6 +1294,7 @@ const start = async (scenarioId = defaultScenarioId, assignmentId?: number) => {
     activeScenarioName.value = data.scenarioName || activeScenarioName.value;
     emotionScore.value = data.emotion ?? 0;
     trustScore.value = data.trust ?? 0;
+    activeRoundCount.value = Math.max(2, Math.min(6, data.roundCount || 3));
     sessionId.value = data.sessionId;
     appendTurn('customer', data.customerText, data.emotion, true, 0);
     status.value = 'active';
@@ -1416,6 +1420,7 @@ const submit = async () => {
       return;
     }
     if (data.finished) {
+      roundIndex.value = data.roundIndex;
       await finish(true);
       return;
     }