refactor: rename cmds module to cmd for better consistency (#2830)

- Renamed `cmds` module to `cmd` for better naming consistency
- Reorganized command modules into separate files under src/cmd/
- Updated all imports and references to use the new module name
- Fixed missing dependency in webdav.rs to reference core::backup
- Updated tray module to use new cmd namespace
- Improved uwp.rs module structure using platform-specific implementations
- Removed unnecessary imports from various command files

src-tauri/src/cmd/app.rs

@@ -0,0 +1,122 @@
+use crate::{
+    utils::dirs,
+    feat,
+    wrap_err,
+};
+use super::CmdResult;
+use tauri::Manager;
+
+/// 打开应用程序所在目录
+#[tauri::command]
+pub fn open_app_dir() -> CmdResult<()> {
+    let app_dir = wrap_err!(dirs::app_home_dir())?;
+    wrap_err!(open::that(app_dir))
+}
+
+/// 打开核心所在目录
+#[tauri::command]
+pub fn open_core_dir() -> CmdResult<()> {
+    let core_dir = wrap_err!(tauri::utils::platform::current_exe())?;
+    let core_dir = core_dir.parent().ok_or("failed to get core dir")?;
+    wrap_err!(open::that(core_dir))
+}
+
+/// 打开日志目录
+#[tauri::command]
+pub fn open_logs_dir() -> CmdResult<()> {
+    let log_dir = wrap_err!(dirs::app_logs_dir())?;
+    wrap_err!(open::that(log_dir))
+}
+
+/// 打开网页链接
+#[tauri::command]
+pub fn open_web_url(url: String) -> CmdResult<()> {
+    wrap_err!(open::that(url))
+}
+
+/// 打开/关闭开发者工具
+#[tauri::command]
+pub fn open_devtools(app_handle: tauri::AppHandle) {
+    if let Some(window) = app_handle.get_webview_window("main") {
+        if !window.is_devtools_open() {
+            window.open_devtools();
+        } else {
+            window.close_devtools();
+        }
+    }
+}
+
+/// 退出应用
+#[tauri::command]
+pub fn exit_app() {
+    feat::quit(Some(0));
+}
+
+/// 重启应用
+#[tauri::command]
+pub async fn restart_app() -> CmdResult<()> {
+    feat::restart_app();
+    Ok(())
+}
+
+/// 获取便携版标识
+#[tauri::command]
+pub fn get_portable_flag() -> CmdResult<bool> {
+    Ok(*dirs::PORTABLE_FLAG.get().unwrap_or(&false))
+}
+
+/// 获取应用目录
+#[tauri::command]
+pub fn get_app_dir() -> CmdResult<String> {
+    let app_home_dir = wrap_err!(dirs::app_home_dir())?
+        .to_string_lossy()
+        .to_string();
+    Ok(app_home_dir)
+}
+
+/// 下载图标缓存
+#[tauri::command]
+pub async fn download_icon_cache(url: String, name: String) -> CmdResult<String> {
+    let icon_cache_dir = wrap_err!(dirs::app_home_dir())?.join("icons").join("cache");
+    let icon_path = icon_cache_dir.join(name);
+    if !icon_cache_dir.exists() {
+        let _ = std::fs::create_dir_all(&icon_cache_dir);
+    }
+    if !icon_path.exists() {
+        let response = wrap_err!(reqwest::get(url).await)?;
+
+        let mut file = wrap_err!(std::fs::File::create(&icon_path))?;
+
+        let content = wrap_err!(response.bytes().await)?;
+        wrap_err!(std::io::copy(&mut content.as_ref(), &mut file))?;
+    }
+    Ok(icon_path.to_string_lossy().to_string())
+}
+
+/// 复制图标文件
+#[tauri::command]
+pub fn copy_icon_file(path: String, name: String) -> CmdResult<String> {
+    let file_path = std::path::Path::new(&path);
+    let icon_dir = wrap_err!(dirs::app_home_dir())?.join("icons");
+    if !icon_dir.exists() {
+        let _ = std::fs::create_dir_all(&icon_dir);
+    }
+    let ext = match file_path.extension() {
+        Some(e) => e.to_string_lossy().to_string(),
+        None => "ico".to_string(),
+    };
+
+    let png_dest_path = icon_dir.join(format!("{name}.png"));
+    let ico_dest_path = icon_dir.join(format!("{name}.ico"));
+    let dest_path = icon_dir.join(format!("{name}.{ext}"));
+    if file_path.exists() {
+        std::fs::remove_file(png_dest_path).unwrap_or_default();
+        std::fs::remove_file(ico_dest_path).unwrap_or_default();
+        match std::fs::copy(file_path, &dest_path) {
+            Ok(_) => Ok(dest_path.to_string_lossy().to_string()),
+            Err(err) => Err(err.to_string()),
+        }
+    } else {
+        Err("file not found".to_string())
+    }
+}