refactor: 统一 system/_meta.json 管理分类；修复前端 TypeScript 报错

python-api/app/ai/prompts/loader.py

@@ -14,6 +14,7 @@ Prompt 简单加载器
   └── ...
 """
 
+import json
 import json
 import random
 from pathlib import Path
@@ -60,12 +61,25 @@ def render_template(template: str, **kwargs) -> str:
 # ====================== 新分类体系：动态扫描 ======================
 
 SYSTEM_PROMPTS_DIR = _PROMPTS_DIR / "system"
+_SYSTEM_META_PATH = SYSTEM_PROMPTS_DIR / "_meta.json"
+
+
+def _load_system_meta() -> dict:
+    """读取 system/_meta.json"""
+    if _SYSTEM_META_PATH.exists():
+        try:
+            return json.loads(_SYSTEM_META_PATH.read_text(encoding="utf-8"))
+        except (json.JSONDecodeError, OSError):
+            pass
+    return {}
 
 
 def list_categories() -> list[dict]:
     """
     扫描 system/ 目录，返回所有分类结构
 
+    名称从 system/_meta.json 读取，count 动态扫描目录统计。
+
     Returns:
         [
           {
@@ -79,7 +93,10 @@ def list_categories() -> list[dict]:
           ...
         ]
     """
+    meta = _load_system_meta()
+    meta_categories = {c["code"]: c for c in meta.get("categories", [])}
     categories = []
+
     if not SYSTEM_PROMPTS_DIR.exists():
         return categories
 
@@ -87,34 +104,34 @@ def list_categories() -> list[dict]:
         if not cat_dir.is_dir():
             continue
 
-        # 读取大类元数据
-        cat_meta = _load_meta(cat_dir)
-        cat_name = cat_meta.get("name", cat_dir.name)
+        cat_code = cat_dir.name
+        cat_meta = meta_categories.get(cat_code, {})
+        meta_subs = {s["code"]: s for s in cat_meta.get("subcategories", [])}
+        cat_name = cat_meta.get("name", cat_code)
 
         subcategories = []
         for sub_dir in sorted(cat_dir.iterdir()):
             if not sub_dir.is_dir():
                 continue
 
-            # 读取小类元数据
-            sub_meta = _load_meta(sub_dir)
-            sub_name = sub_meta.get("name", sub_dir.name)
+            sub_code = sub_dir.name
+            sub_name = meta_subs.get(sub_code, {}).get("name", sub_code)
 
             # 统计提示词文件数量（排除 _meta.json）
             prompt_files = [
                 f for f in sub_dir.iterdir()
-                if f.is_file() and f.name != "_meta.json"
+                if f.is_file() and f.suffix == ".txt"
             ]
 
             subcategories.append({
-                "code": sub_dir.name,
+                "code": sub_code,
                 "name": sub_name,
                 "count": len(prompt_files),
             })
 
         if subcategories:
             categories.append({
-                "code": cat_dir.name,
+                "code": cat_code,
                 "name": cat_name,
                 "subcategories": subcategories,
             })
@@ -122,17 +139,6 @@ def list_categories() -> list[dict]:
     return categories
 
 
-def _load_meta(directory: Path) -> dict:
-    """读取目录下的 _meta.json"""
-    meta_path = directory / "_meta.json"
-    if meta_path.exists():
-        try:
-            return json.loads(meta_path.read_text(encoding="utf-8"))
-        except (json.JSONDecodeError, OSError):
-            pass
-    return {}
-
-
 def load_system_prompt(category: str, subcategory: str) -> str:
     """
     根据大类+小类随机加载一个 System Prompt
@@ -148,7 +154,7 @@ def load_system_prompt(category: str, subcategory: str) -> str:
     if not sub_dir.exists():
         return ""
 
-    # 收集所有提示词文件（排除 _meta.json）
+    # 收集所有提示词文件
     prompt_files = [
         f for f in sub_dir.iterdir()
         if f.is_file() and f.suffix == ".txt"

python-api/app/ai/prompts/system/_meta.json

@@ -0,0 +1,13 @@
+{
+  "categories": [
+    {
+      "code": "bk",
+      "name": "装修避坑",
+      "subcategories": [
+        { "code": "ht", "name": "装修合同避坑" },
+        { "code": "lc", "name": "装修全流程避坑" },
+        { "code": "qw", "name": "全屋定制避坑" }
+      ]
+    }
+  ]
+}

python-api/app/ai/prompts/system/bk/ht/_meta.json

@@ -1 +0,0 @@
-{"name": "装修合同避坑"}

python-api/app/ai/prompts/system/bk/lc/_meta.json

@@ -1 +0,0 @@
-{"name": "装修全流程避坑"}

python-api/app/ai/prompts/system/bk/qw/_meta.json

@@ -1 +0,0 @@
-{"name": "全屋定制避坑"}

tauri-app/src/pages/VideoCreation/ScriptCreation.tsx

@@ -20,7 +20,6 @@ export default function ScriptCreation() {
   const segments = useProjectStore(state => state.segments);
   const setSegments = useProjectStore(state => state.setSegments);
   const updateSegment = useProjectStore(state => state.updateSegment);
-  const topic = useProjectStore(state => state.topic) || '';
   const setTopic = useProjectStore(state => state.setTopic);
   const scriptDuration = useProjectStore(state => state.scriptDuration) || 45;
   const setScriptDuration = useProjectStore(state => state.setScriptDuration);

tauri-app/src/pages/VideoCreation/VoiceDubbing.tsx

@@ -218,7 +218,7 @@ export default function VoiceDubbing() {
                           <span className="voice-row-desc-inline">{v.description}</span>
                         </div>
                       </div>
-                      <button className="preview-icon" onClick={e => handlePlayPause(v.voiceId, v.previewUrl, e)}>
+                      <button className="preview-icon" onClick={e => handlePlayPause(v.voiceId, v.previewUrl ?? null, e)}>
                         {playingVoiceId === v.voiceId ? '⏸' : '▶'}
                       </button>
                     </div>
@@ -243,7 +243,7 @@ export default function VoiceDubbing() {
                             </span>
                           </div>
                         </div>
-                        <button className="preview-icon" onClick={e => handlePlayPause(m.voiceId, m.trialUrl, e)}>
+                        <button className="preview-icon" onClick={e => handlePlayPause(m.voiceId, m.trialUrl ?? null, e)}>
                           {playingVoiceId === m.voiceId ? '⏸' : '▶'}
                         </button>
                       </div>

tauri-app/src/store/projectStore.ts

@@ -88,6 +88,9 @@ interface SaveState {
   selectedHumanId?: string;
   selectedElementId?: number;
   selectedVoiceId?: string;
+  dubbingAudioUrl?: string;
+  dubbingAudioPath?: string;
+  dubbingVoiceId?: string;
   scriptDuration?: number;
   scriptType?: string;
   currentStep?: number;