added roominvites in frontend in a notifications page and added clap to define backend port

src/authStore.ts

@@ -0,0 +1,41 @@
+import { load, Store } from '@tauri-apps/plugin-store'
+
+let store: Store | null = null
+
+async function getStore() {
+  if (!store) store = await load('store.json')
+  return store
+}
+
+export async function getAuthData() {
+  const s = await getStore()
+  const token = await s.get<string>('token')
+  const uuid = await s.get<string>('uuid')
+  return { token: token || null, uuid: uuid || null, isAuthenticated: !!token }
+}
+
+export async function saveAuthData(token: string, uuid: string) {
+  const s = await getStore()
+  await s.set('token', token)
+  await s.set('uuid', uuid)
+  await s.save()
+}
+
+export async function clearAuthData() {
+  const s = await getStore()
+  await s.delete('token')
+  await s.delete('uuid')
+  await s.save()
+}
+
+export async function setLastRoom(uuid: string) {
+  if (!uuid || uuid === 'none') return
+  const s = await getStore()
+  await s.set('last_room_uuid', uuid)
+  await s.save()
+}
+
+export async function getLastRoom(): Promise<string | null> {
+  const s = await getStore()
+  return (await s.get<string>('last_room_uuid')) ?? null
+}