fix(desktop): respect local-origin tauri shell for directory access (#391)

* feat: enable local-origin desktop features and copy in terminal support

- Enable arbitrary web loads in desktop web content for TAURI apps.
- Guard directory dialog access behind local-origin origin check.
- Add copy-to-clipboard support for terminal selections via common shortcuts.

* fix: improve initial directory resolution and persistence in directory store

packages/ui/src/components/session/SessionDialogs.tsx

@@ -22,7 +22,7 @@ import { useSessionStore } from '@/stores/useSessionStore';
 import { useDirectoryStore } from '@/stores/useDirectoryStore';
 import { useProjectsStore } from '@/stores/useProjectsStore';
 import { useFileSystemAccess } from '@/hooks/useFileSystemAccess';
-import { isTauriShell } from '@/lib/desktop';
+import { isDesktopLocalOriginActive, isTauriShell } from '@/lib/desktop';
 import { useDeviceInfo } from '@/lib/device';
 import { sessionEvents } from '@/lib/sessionEvents';
 
@@ -129,7 +129,7 @@ export const SessionDialogs: React.FC = () => {
 
         setHasShownInitialDirectoryPrompt(true);
 
-        if (isTauriShell()) {
+        if (isTauriShell() && isDesktopLocalOriginActive()) {
             requestAccess('')
                 .then(async (result) => {
                     if (!result.success || !result.path) {