feat(导图): 防抖/增量生成/移除冗余对比面板

- 重新生成按钮增加 :loading 防重复点击
- 生成进度提示（AI 正在生成中，已等待 X 秒）
- 用户编辑后弹窗选择「全量重新生成」或「增量更新」
- 移除独立的对比结果面板，着色结果直接展示在标准导图中

src/api/standardMindMap.ts

@@ -10,7 +10,7 @@ export interface StandardMindMap {
   content: string;
   outline: string;
   summary: string;
-  generator: "BUILTIN" | "AI" | "USER";
+  generator: "BUILTIN" | "AI" | "USER" | "USER_MERGE";
   generatorVersion?: string;
   sourceReportCount: number;
   sourceFragmentCount: number;
@@ -38,9 +38,9 @@ export const getStandardMindMap = (taskNum: string) => {
   return request.get(`/review/standard-mind-map/${taskNum}`);
 };
 
-/** 强制重新生成标准思维导图 */
+/** 强制重新生成标准思维导图（全量或增量） */
-export const regenerateStandardMindMap = (taskNum: string) => {
+export const regenerateStandardMindMap = (taskNum: string, mode: "full" | "incremental" = "full") => {
-  return request.post(`/review/standard-mind-map/${taskNum}/regenerate`);
+  return request.post(`/review/standard-mind-map/${taskNum}/regenerate?mode=${mode}`);
 };
 
 /** 用户编辑标准思维导图（大纲文本） */

src/components/ReviewRecall.vue

@@ -23,6 +23,10 @@ const standard = ref<StandardMindMap | null>(null);
 const comparing = ref(false);
 const comparingSeconds = ref(0);
 let comparingTimer: ReturnType<typeof setInterval> | null = null;
+
+const regenerating = ref(false);
+const regeneratingSeconds = ref(0);
+let regeneratingTimer: ReturnType<typeof setInterval> | null = null;
 const lastResult = ref<any>(null);
 const hasCompared = ref(false);
 
@@ -120,22 +124,60 @@ const loadData = async () => {
   }
 };
 
-// 重新生成
+// 重新生成（防抖 + 用户编辑时弹窗选模式）
 const handleRegenerate = async () => {
+  // 防抖：正在生成中跳过
+  if (regenerating.value) return;
+
+  let mode: "full" | "incremental" = "full";
+
+  // 如果用户编辑过，弹窗选择生成模式
+  if (standard.value?.generator === "USER" || standard.value?.generator === "USER_MERGE") {
     try {
-    await ElMessageBox.confirm("重新生成将丢弃用户编辑的内容，确定？", "提示", {
+      await ElMessageBox.confirm(
+        "检测到您已编辑过标准思维导图，请选择重新生成方式：",
+        "重新生成",
+        {
+          confirmButtonText: "全量重新生成",
+          cancelButtonText: "增量更新（保留编辑）",
+          type: "warning",
+          distinguishCancelAndClose: true,
+        }
+      );
+      // confirm → 全量（保持 mode = "full"）
+    } catch (e: any) {
+      if (e === "cancel" || e?.toString()?.includes("cancel")) {
+        mode = "incremental";
+      } else {
+        return; // 点 X 关闭 → 不做操作
+      }
+    }
+  } else {
+    // 未编辑过的简单确认
+    try {
+      await ElMessageBox.confirm("重新生成将从学习数据中重新生成标准思维导图，确定？", "提示", {
         confirmButtonText: "确定",
         cancelButtonText: "取消",
-      type: "warning",
+        type: "info",
       });
-    loading.value = true;
-    const res = await regenerateStandardMindMap(taskNum.value);
-    standard.value = res?.data || null;
-    ElMessage.success("标准思维导图已重新生成");
     } catch {
-    // 用户取消或接口错误
+      return;
+    }
+  }
+
+  // 开始生成
+  regenerating.value = true;
+  regeneratingSeconds.value = 0;
+  regeneratingTimer = setInterval(() => { regeneratingSeconds.value++; }, 1000);
+  try {
+    const res = await regenerateStandardMindMap(taskNum.value, mode);
+    standard.value = res?.data || null;
+    ElMessage.success(mode === "incremental" ? "标准思维导图已增量更新" : "标准思维导图已重新生成");
+  } catch (e: any) {
+    ElMessage.error(e.message || "重新生成失败");
   } finally {
-    loading.value = false;
+    regenerating.value = false;
+    if (regeneratingTimer) { clearInterval(regeneratingTimer); regeneratingTimer = null; }
   }
 };
 
@@ -395,19 +437,7 @@ onMounted(() => {
       <MindMapViewer ref="recallViewer" :tree="recallTree" :editable="true" height="60vh" />
     </article>
 
-    <!-- 对比结果 -->
+    <!-- 标准导图（含对比着色） -->
-    <article class="surface-card" v-if="hasCompared && compareTree">
-      <h3>📊 对比结果</h3>
-      <p class="panel-hint">绿色=回忆命中，红色=遗漏。点击带标签的节点可回看原文。</p>
-      <MindMapViewer
-        :tree="compareTree"
-        :color-by-compare="true"
-        height="60vh"
-        @node-click="goToNodeSource"
-      />
-    </article>
-
-    <!-- 标准导图 -->
     <article class="surface-card standard-panel">
       <div class="panel-header">
         <h3>📖 标准思维导图</h3>
@@ -419,6 +449,7 @@ onMounted(() => {
             v-if="standardExpanded"
             size="small"
             type="warning"
+            :loading="regenerating"
             @click="handleRegenerate"
           >
             重新生成
@@ -432,6 +463,10 @@ onMounted(() => {
             编辑
           </el-button>
         </div>
+        <p v-if="regenerating" class="ai-waiting" style="margin-top: 4px; width: 100%;">
+          <template v-if="regeneratingSeconds < 3">正在准备生成…</template>
+          <template v-else>AI 正在生成中，已等待 {{ regeneratingSeconds }} 秒，请稍候…</template>
+        </p>
       </div>
 
       <div v-if="!standard" class="empty-state">