feat: refactor openExternalUrl to use dedicated Tauri shell utility

src/app/utils/tauri.ts

@@ -3,12 +3,10 @@
  * @param url The URL to open
  */
 export const openExternalUrl = async (url: string): Promise<void> => {
-  // Only try to import Tauri shell in Tauri builds
   if (typeof window !== 'undefined' && (window as any).__TAURI__) {
     try {
-      // @ts-ignore
-      const { open } = await import(/* @vite-ignore */ '@tauri-apps/plugin-shell');
-      await open(url);
+      const { openWithTauriShell } = await import('./tauriShell');
+      await openWithTauriShell(url);
       return;
     } catch (err) {
       console.warn('Tauri shell.open failed, falling back to window.open:', err);

src/app/utils/tauriShell.ts

@@ -0,0 +1,9 @@
+/**
+ * Tauri shell open utility, only imported in Tauri builds
+ */
+
+export async function openWithTauriShell(url: string): Promise<void> {
+  // @ts-ignore
+  const { open } = await import(/* @vite-ignore */ '@tauri-apps/plugin-shell');
+  await open(url);
+}