优化：动态获取系统所有盘符（C/D/E/F等）

app.go

@@ -140,14 +140,39 @@ func (a *App) GetCommonPaths() (map[string]string, error) {
 		return nil, err
 	}
 
-	return map[string]string{
-		"home":     homeDir,
-		"desktop":  filepath.Join(homeDir, "Desktop"),
+	// 获取所有可用驱动器（Windows）
+	drives := getSystemDrives()
+
+	paths := map[string]string{
+		"home":      homeDir,
+		"desktop":   filepath.Join(homeDir, "Desktop"),
 		"documents": filepath.Join(homeDir, "Documents"),
 		"downloads": filepath.Join(homeDir, "Downloads"),
-		"root_c":   "C:\\",
-		"root_d":   "D:\\",
-	}, nil
+	}
+
+	// 动态添加所有盘符
+	for i, drive := range drives {
+		key := fmt.Sprintf("root_%s", drive[:1])
+		paths[key] = drive
+		_ = i // 避免未使用变量警告
+	}
+
+	return paths, nil
+}
+
+// getSystemDrives 获取系统所有可用驱动器
+func getSystemDrives() []string {
+	var drives []string
+
+	// Windows: 检查 A-Z 所有盘符
+	for _, drive := range "ABCDEFGHIJKLMNOPQRSTUVWXYZ" {
+		path := string(drive) + ":\\"
+		if _, err := os.Stat(path); err == nil {
+			drives = append(drives, path)
+		}
+	}
+
+	return drives
 }
 
 // ========== 数据库连接管理接口 ==========