React Native Expo app — full mobile client

- Expo SDK 54, expo-router, NativeWind
- 7 screens: login, tasks, calendar, goals, chat, settings, tabs
- API client (api.hasdo.info), SecureStore auth, AuthContext
- Tab navigation: Ukoly, Kalendar, Cile, Chat, Nastaveni
- Pull-to-refresh, FAB, group colors, priority dots
- Calendar grid with task dots
- AI chat with keyboard avoiding
- Web export verified (780 modules, 1.5MB bundle)
- Bundle ID: info.hasdo.taskteam

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

mobile/lib/auth.ts

@@ -0,0 +1,60 @@
+import * as SecureStore from 'expo-secure-store';
+import { Platform } from 'react-native';
+
+const TOKEN_KEY = 'taskteam_token';
+const USER_KEY = 'taskteam_user';
+
+export async function getToken(): Promise<string | null> {
+  if (Platform.OS === 'web') {
+    return localStorage.getItem(TOKEN_KEY);
+  }
+  return SecureStore.getItemAsync(TOKEN_KEY);
+}
+
+export async function setToken(token: string): Promise<void> {
+  if (Platform.OS === 'web') {
+    localStorage.setItem(TOKEN_KEY, token);
+    return;
+  }
+  await SecureStore.setItemAsync(TOKEN_KEY, token);
+}
+
+export async function removeToken(): Promise<void> {
+  if (Platform.OS === 'web') {
+    localStorage.removeItem(TOKEN_KEY);
+    return;
+  }
+  await SecureStore.deleteItemAsync(TOKEN_KEY);
+}
+
+export async function getUser(): Promise<any | null> {
+  let raw: string | null;
+  if (Platform.OS === 'web') {
+    raw = localStorage.getItem(USER_KEY);
+  } else {
+    raw = await SecureStore.getItemAsync(USER_KEY);
+  }
+  if (!raw) return null;
+  try {
+    return JSON.parse(raw);
+  } catch {
+    return null;
+  }
+}
+
+export async function setUser(user: any): Promise<void> {
+  const raw = JSON.stringify(user);
+  if (Platform.OS === 'web') {
+    localStorage.setItem(USER_KEY, raw);
+    return;
+  }
+  await SecureStore.setItemAsync(USER_KEY, raw);
+}
+
+export async function removeUser(): Promise<void> {
+  if (Platform.OS === 'web') {
+    localStorage.removeItem(USER_KEY);
+    return;
+  }
+  await SecureStore.deleteItemAsync(USER_KEY);
+}