fix: 修复 Rust 编译错误

🔧 修复内容：
- 添加缺失的 execute_python_command 函数
- 移除未使用的导入 (tauri::Manager, tauri::State)
- 统一 Python 命令执行逻辑

✅ 编译状态：
- Rust 编译成功 ✓
- 前端构建成功 ✓
- 所有警告已清除 ✓

现在 AI 视频生成功能可以正常编译和运行了！

src-tauri/src/commands.rs

@@ -20,7 +20,6 @@ pub struct BatchAIVideoRequest {
     pub timeout: Option<u32>,
 }
 use std::process::Command;
-use tauri::State;
 
 #[derive(Debug, Serialize, Deserialize)]
 pub struct VideoProcessRequest {
@@ -65,6 +64,27 @@ pub struct AudioTrack {
     pub volume: f64,
 }
 
+// Helper function to execute Python commands
+async fn execute_python_command(args: &[String]) -> Result<String, String> {
+    let mut cmd = Command::new("python3");
+
+    for arg in args {
+        cmd.arg(arg);
+    }
+
+    let output = cmd
+        .output()
+        .map_err(|e| format!("Failed to execute Python script: {}", e))?;
+
+    if output.status.success() {
+        let result = String::from_utf8_lossy(&output.stdout);
+        Ok(result.to_string())
+    } else {
+        let error = String::from_utf8_lossy(&output.stderr);
+        Err(format!("Python script error: {}", error))
+    }
+}
+
 #[tauri::command]
 pub async fn greet(name: &str) -> Result<String, String> {
     Ok(format!("Hello, {}! Welcome to MixVideo V2!", name))

src-tauri/src/lib.rs

@@ -1,5 +1,3 @@
-use tauri::Manager;
-
 mod commands;
 
 #[cfg_attr(mobile, tauri::mobile_entry_point)]