feat: local backup (#5054)

* feat: local backup

* refactor(backup): make local backup helpers synchronous and clean up redundant checks

- Converted local backup helpers to synchronous functions to remove unused async warnings and align command signatures.
- Updated list/delete/export commands to call the sync feature functions directly without awaits while preserving behavior.
- Simplified destination directory creation to always ensure parent folders exist without redundant checks, satisfying Clippy.

src/services/cmds.ts

@@ -440,14 +440,30 @@ export async function createWebdavBackup() {
   return invoke<void>("create_webdav_backup");
 }
 
+export async function createLocalBackup() {
+  return invoke<void>("create_local_backup");
+}
+
 export async function deleteWebdavBackup(filename: string) {
   return invoke<void>("delete_webdav_backup", { filename });
 }
 
+export async function deleteLocalBackup(filename: string) {
+  return invoke<void>("delete_local_backup", { filename });
+}
+
 export async function restoreWebDavBackup(filename: string) {
   return invoke<void>("restore_webdav_backup", { filename });
 }
 
+export async function restoreLocalBackup(filename: string) {
+  return invoke<void>("restore_local_backup", { filename });
+}
+
+export async function exportLocalBackup(filename: string, destination: string) {
+  return invoke<void>("export_local_backup", { filename, destination });
+}
+
 export async function saveWebdavConfig(
   url: string,
   username: string,
@@ -468,6 +484,10 @@ export async function listWebDavBackup() {
   return list;
 }
 
+export async function listLocalBackup() {
+  return invoke<ILocalBackupFile[]>("list_local_backup");
+}
+
 export async function scriptValidateNotice(status: string, msg: string) {
   return invoke<void>("script_validate_notice", { status, msg });
 }

src/services/types.d.ts

@@ -870,6 +870,13 @@ interface IWebDavFile {
   tag: string;
 }
 
+interface ILocalBackupFile {
+  filename: string;
+  path: string;
+  last_modified: string;
+  content_length: number;
+}
+
 interface IWebDavConfig {
   url: string;
   username: string;