Refactor desktop app into separate client and proxy apps

apps/yaak-client/commands/openSettings.tsx

@@ -0,0 +1,30 @@
+import type { SettingsTab } from '../components/Settings/Settings';
+import { activeWorkspaceIdAtom } from '../hooks/useActiveWorkspace';
+import { createFastMutation } from '../hooks/useFastMutation';
+import { jotaiStore } from '../lib/jotai';
+import { router } from '../lib/router';
+import { invokeCmd } from '../lib/tauri';
+
+// Allow tab with optional subtab (e.g., "plugins:installed")
+type SettingsTabWithSubtab = SettingsTab | `${SettingsTab}:${string}` | null;
+
+export const openSettings = createFastMutation<void, string, SettingsTabWithSubtab>({
+  mutationKey: ['open_settings'],
+  mutationFn: async (tab) => {
+    const workspaceId = jotaiStore.get(activeWorkspaceIdAtom);
+    if (workspaceId == null) return;
+
+    const location = router.buildLocation({
+      to: '/workspaces/$workspaceId/settings',
+      params: { workspaceId },
+      search: { tab: (tab ?? undefined) as SettingsTab | undefined },
+    });
+
+    await invokeCmd('cmd_new_child_window', {
+      url: location.href,
+      label: 'settings',
+      title: 'Yaak Settings',
+      innerSize: [750, 600],
+    });
+  },
+});