feat: 编辑器加载计划时优先从后端clips表还原片段

- 加载计划时并行请求 clips 列表
- 优先从后端 clips 表还原片段（含 config.tts_config / trim_config）
- 无 clips 数据时从 config.segments 兜底（老数据兼容）
- 形成完整闭环：编辑→同步→生成→重新加载

apps/web/src/pages/editing-planner/EditingPlanner.tsx

@@ -417,8 +417,16 @@ const EditingPlanner: React.FC = () => {
    */
   useEffect(() => {
     if (!loadedPlanId) return;
-    getEditPlan(loadedPlanId)
-      .then((plan) => {
+
+    // 并行加载计划基本信息 + 片段列表
+    Promise.all([
+      getEditPlan(loadedPlanId),
+      getEditPlanClips(loadedPlanId, { limit: 500 }).catch(() => ({
+        items: [],
+        total: 0,
+      })),
+    ])
+      .then(([plan, clipsRes]) => {
         // 设置关联的模板（触发模板加载 effect）
         setLoadedTemplateId(plan.template_id);
 
@@ -458,8 +466,41 @@ const EditingPlanner: React.FC = () => {
           }));
         }
 
-        // 还原片段 — 延迟设置，等模板加载 effect 先执行 resetClips
-        if (cfg.segments && cfg.segments.length > 0) {
+        // 还原片段：优先从后端 clips 表，其次从 config.segments 兜底
+        const backendClips = clipsRes?.items || [];
+        if (backendClips.length > 0) {
+          // 从后端 clips 表还原
+          const sorted = [...backendClips].sort(
+            (a, b) => a.order - b.order,
+          );
+          const mapped: ClipData[] = sorted.map((clip) => ({
+            id: clip.id,
+            template_segment_id:
+              (clip.config?.template_segment_id as string) || "",
+            type: (clip.clip_type === "voiceover"
+              ? "voice"
+              : "pip") as ClipType,
+            duration: clip.duration || 3,
+            startOffset: 0,
+            script_text: clip.text_content || "",
+            order: clip.order,
+            media_asset_id: clip.asset_id || undefined,
+            transition:
+              clip.transition_effect && clip.transition_effect !== "none"
+                ? {
+                    type: clip.transition_effect as TransitionEffect["type"],
+                    duration: clip.transition_duration || 0.3,
+                  }
+                : undefined,
+            speed: clip.playback_speed
+              ? { rate: clip.playback_speed, pitchCorrection: true }
+              : undefined,
+            tts_config: (clip.config?.tts_config as TtsConfig) || undefined,
+            trim_config: (clip.config?.trim_config as TrimConfig) || undefined,
+          }));
+          setTimeout(() => resetClips(mapped), 100);
+        } else if (cfg.segments && cfg.segments.length > 0) {
+          // 兜底：从 config.segments 还原（老数据兼容）
           const mapped: ClipData[] = cfg.segments.map((seg, idx) => ({
             id: `seg-${idx}`,
             template_segment_id: `seg-${idx}`,