refactor: reorganize feat.rs into modular structure (#2827)

Split the monolithic feat.rs file into specialized modules:
- backup.rs: WebDAV backup and restore functions
- clash.rs: Core management and testing functions
- config.rs: Configuration handling
- profile.rs: Profile management
- proxy.rs: Proxy and TUN mode controls
- window.rs: Dashboard window management

This improves code organization, readability, and maintainability
by grouping related functionality into logical modules.

src-tauri/src/feat/backup.rs

@@ -0,0 +1,86 @@
+use crate::config::{Config, IVerge};
+use crate::core::backup;
+use crate::log_err;
+use crate::utils::dirs::app_home_dir;
+use anyhow::Result;
+use reqwest_dav::list_cmd::ListFile;
+use std::fs;
+
+/// Create a backup and upload to WebDAV
+pub async fn create_backup_and_upload_webdav() -> Result<()> {
+    let (file_name, temp_file_path) = backup::create_backup().map_err(|err| {
+        log::error!(target: "app", "Failed to create backup: {:#?}", err);
+        err
+    })?;
+
+    if let Err(err) = backup::WebDavClient::global()
+        .upload(temp_file_path.clone(), file_name)
+        .await
+    {
+        log::error!(target: "app", "Failed to upload to WebDAV: {:#?}", err);
+        return Err(err);
+    }
+
+    if let Err(err) = std::fs::remove_file(&temp_file_path) {
+        log::warn!(target: "app", "Failed to remove temp file: {:#?}", err);
+    }
+
+    Ok(())
+}
+
+/// List WebDAV backups
+pub async fn list_wevdav_backup() -> Result<Vec<ListFile>> {
+    backup::WebDavClient::global().list().await.map_err(|err| {
+        log::error!(target: "app", "Failed to list WebDAV backup files: {:#?}", err);
+        err
+    })
+}
+
+/// Delete WebDAV backup
+pub async fn delete_webdav_backup(filename: String) -> Result<()> {
+    backup::WebDavClient::global()
+        .delete(filename)
+        .await
+        .map_err(|err| {
+            log::error!(target: "app", "Failed to delete WebDAV backup file: {:#?}", err);
+            err
+        })
+}
+
+/// Restore WebDAV backup
+pub async fn restore_webdav_backup(filename: String) -> Result<()> {
+    let verge = Config::verge();
+    let verge_data = verge.data().clone();
+    let webdav_url = verge_data.webdav_url.clone();
+    let webdav_username = verge_data.webdav_username.clone();
+    let webdav_password = verge_data.webdav_password.clone();
+
+    let backup_storage_path = app_home_dir().unwrap().join(&filename);
+    backup::WebDavClient::global()
+        .download(filename, backup_storage_path.clone())
+        .await
+        .map_err(|err| {
+            log::error!(target: "app", "Failed to download WebDAV backup file: {:#?}", err);
+            err
+        })?;
+
+    // extract zip file
+    let mut zip = zip::ZipArchive::new(fs::File::open(backup_storage_path.clone())?)?;
+    zip.extract(app_home_dir()?)?;
+
+    log_err!(
+        super::patch_verge(
+            IVerge {
+                webdav_url,
+                webdav_username,
+                webdav_password,
+                ..IVerge::default()
+            },
+            false
+        )
+        .await
+    );
+    // 最后删除临时文件
+    fs::remove_file(backup_storage_path)?;
+    Ok(())
+}