refactor: 重构 Hedra 文件上传方式，使用文件路径而非文件内容传输

- 修改 HedraFileUploadRequest 使用 file_path 而不是 file_data
- 添加 HedraFileUploadApiRequest 用于后端到 API 的请求
- 更新后端服务读取文件并转换为 API 请求格式
- 重构前端文件选择，使用 @tauri-apps/api/dialog 直接选择文件路径
- 移除复杂的文件转换和临时文件创建逻辑
- 简化文件上传流程，避免大文件在前后端间传输

这种方式更适合 Tauri 架构，避免了大文件传输的性能问题

apps/desktop/src-tauri/src/data/models/bowong_text_video_agent.rs

@@ -258,12 +258,19 @@ pub struct ComfyUISyncExecuteRequest {
     pub max_wait_time: Option<u32>,
 }
 
-/// Hedra 文件上传请求
+/// Hedra 文件上传请求（前端到后端）
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct HedraFileUploadRequest {
+    pub file_path: String,
+    pub purpose: Option<String>, // 'image', 'audio', 'video', 'voice'
+}
+
+/// Hedra 文件上传 API 请求（后端到 API）
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct HedraFileUploadApiRequest {
     pub file_data: Vec<u8>,
     pub filename: String,
-    pub purpose: Option<String>, // 'image', 'audio', 'video', 'voice'
+    pub purpose: Option<String>,
 }
 
 /// Hedra 任务提交请求

apps/desktop/src-tauri/src/infrastructure/bowong_text_video_agent_service.rs

@@ -525,7 +525,25 @@ impl BowongTextVideoAgentService {
 
     /// Hedra 上传文件
     pub async fn hedra_upload_file(&self, request: &HedraFileUploadRequest) -> Result<FileUploadResponse> {
-        self.execute_request("hedra_upload_file", Some(request)).await
+        // 读取文件内容
+        let file_data = std::fs::read(&request.file_path)
+            .map_err(|e| anyhow!("Failed to read file {}: {}", request.file_path, e))?;
+
+        // 获取文件名
+        let filename = std::path::Path::new(&request.file_path)
+            .file_name()
+            .and_then(|name| name.to_str())
+            .ok_or_else(|| anyhow!("Invalid file path: {}", request.file_path))?
+            .to_string();
+
+        // 构造 API 请求
+        let api_request = HedraFileUploadApiRequest {
+            file_data,
+            filename,
+            purpose: request.purpose.clone(),
+        };
+
+        self.execute_request("hedra_upload_file", Some(&api_request)).await
     }
 
     /// Hedra 提交任务

apps/desktop/src/pages/tools/HedraLipSyncTool.tsx

@@ -14,6 +14,7 @@ import {
   FileImage,
   FileAudio
 } from 'lucide-react';
+import { open } from '@tauri-apps/api/dialog';
 import { useNotifications } from '../../components/NotificationSystem';
 import { createBowongTextVideoAgentService } from '../../services/bowongTextVideoAgentService';
 import {
@@ -104,14 +105,29 @@ const HedraLipSyncTool: React.FC = () => {
     }
   }, [addNotification]);
 
-  // 文件上传
-  const uploadFile = useCallback(async (fileInfo: HedraFileInfo, purpose: 'image' | 'audio'): Promise<string> => {
-    const request: HedraFileUploadRequest = {
-      local_file: fileInfo.file,
-      purpose
-    };
-
+  // 文件选择和上传
+  const selectAndUploadFile = useCallback(async (purpose: 'image' | 'audio'): Promise<string> => {
     try {
+      // 使用文件选择对话框
+      const selected = await open({
+        multiple: false,
+        filters: [{
+          name: purpose === 'image' ? '图片文件' : '音频文件',
+          extensions: purpose === 'image'
+            ? ['jpg', 'jpeg', 'png', 'gif', 'bmp', 'webp']
+            : ['mp3', 'wav', 'aac', 'flac', 'm4a', 'ogg']
+        }]
+      });
+
+      if (!selected || typeof selected !== 'string') {
+        throw new Error('未选择文件');
+      }
+
+      const request: HedraFileUploadRequest = {
+        file_path: selected,
+        purpose
+      };
+
       const response = await bowongService.hedraUploadFile(request);
       if (response.status && response.data) {
         return response.data;
@@ -119,7 +135,7 @@ const HedraLipSyncTool: React.FC = () => {
         throw new Error(response.msg || '文件上传失败');
       }
     } catch (error) {
-      console.error('文件上传失败:', error);
+      console.error('文件选择和上传失败:', error);
       throw error;
     }
   }, []);
@@ -144,7 +160,7 @@ const HedraLipSyncTool: React.FC = () => {
         imageFile: prev.imageFile ? { ...prev.imageFile, uploadStatus: 'uploading' } : null
       }));
 
-      const imageUrl = await uploadFile(state.imageFile, 'image');
+      const imageUrl = await selectAndUploadFile('image');
       
       setState(prev => ({
         ...prev,
@@ -157,7 +173,7 @@ const HedraLipSyncTool: React.FC = () => {
         audioFile: prev.audioFile ? { ...prev.audioFile, uploadStatus: 'uploading' } : null
       }));
 
-      const audioUrl = await uploadFile(state.audioFile, 'audio');
+      const audioUrl = await selectAndUploadFile('audio');
       
       setState(prev => ({
         ...prev,
@@ -217,7 +233,7 @@ const HedraLipSyncTool: React.FC = () => {
         message: error instanceof Error ? error.message : '口型合成任务失败'
       });
     }
-  }, [state.imageFile, state.audioFile, uploadFile, addNotification]);
+  }, [selectAndUploadFile, addNotification]);
 
   // 轮询任务状态
   const pollTaskStatus = useCallback(async (taskId: string) => {

apps/desktop/src/services/bowongTextVideoAgentService.ts

@@ -606,15 +606,7 @@ export class BowongTextVideoAgentFastApiService implements BowongTextVideoAgentA
   // ============================================================================
 
   async hedraUploadFile(request: HedraFileUploadRequest): Promise<FileUploadResponse> {
-    // 将 File 对象转换为后端期望的格式
-    const fileData = await this.fileToBytes(request.local_file);
-    const backendRequest = {
-      file_data: Array.from(fileData), // 转换为数字数组
-      filename: request.local_file.name,
-      purpose: request.purpose || 'image'
-    };
-
-    return this.invokeAPI<FileUploadResponse>('hedra_upload_file', backendRequest);
+    return this.invokeAPI<FileUploadResponse>('hedra_upload_file', request);
   }
 
   async hedraSubmitTask(request: HedraTaskSubmitRequest): Promise<TaskResponse> {
@@ -641,23 +633,7 @@ export class BowongTextVideoAgentFastApiService implements BowongTextVideoAgentA
   // 工具方法
   // ============================================================================
 
-  /**
-   * 将 File 对象转换为字节数组
-   */
-  private async fileToBytes(file: File): Promise<Uint8Array> {
-    return new Promise((resolve, reject) => {
-      const reader = new FileReader();
-      reader.onload = () => {
-        if (reader.result instanceof ArrayBuffer) {
-          resolve(new Uint8Array(reader.result));
-        } else {
-          reject(new Error('Failed to read file as ArrayBuffer'));
-        }
-      };
-      reader.onerror = () => reject(reader.error);
-      reader.readAsArrayBuffer(file);
-    });
-  }
+
 
   /**
    * 获取服务配置

apps/desktop/src/types/bowongTextVideoAgent.ts

@@ -545,7 +545,7 @@ export interface ComfyUISyncExecuteRequest {
  * Hedra 文件上传请求
  */
 export interface HedraFileUploadRequest {
-  local_file: File;
+  file_path: string;
   purpose?: 'image' | 'audio' | 'video' | 'voice'; // 默认 'image'
 }