Add React Native mobile app for Makima (#3)

* [WIP] Heartbeat checkpoint - 2026-01-18 02:58:27 UTC

* feat(mobile): complete mobile app integration and verification

- Add ThemeColors type export to Colors.ts for type safety
- Export SUPABASE_URL from supabase.ts and use environment variables
- Update .env.example with correct default URLs
- Add comprehensive README.md with setup instructions

Verified:
- TypeScript compiles without errors
- App exports successfully for iOS and Android
- All screens accessible (login, dashboard, tasks, settings, task detail)
- Auth flow working with Zustand store and Supabase

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* Task completion checkpoint

---------

Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>

1 files changed, 28 insertions, 0 deletions

diff --git a/apps/mobile/lib/supabase.ts b/apps/mobile/lib/supabase.ts
new file mode 100644
index 0000000..f7d005a
--- /dev/null
+++ b/apps/mobile/lib/supabase.ts
@@ -0,0 +1,28 @@
+import { createClient } from '@supabase/supabase-js';
+import * as SecureStore from 'expo-secure-store';
+
+// Supabase configuration from environment variables
+export const SUPABASE_URL = process.env.EXPO_PUBLIC_SUPABASE_URL || 'https://ynxyjytytmfwxjqxljzm.supabase.co';
+const SUPABASE_ANON_KEY = process.env.EXPO_PUBLIC_SUPABASE_ANON_KEY || 'your-anon-key';
+
+// Custom storage using expo-secure-store for React Native
+const ExpoSecureStoreAdapter = {
+  getItem: (key: string) => {
+    return SecureStore.getItemAsync(key);
+  },
+  setItem: (key: string, value: string) => {
+    return SecureStore.setItemAsync(key, value);
+  },
+  removeItem: (key: string) => {
+    return SecureStore.deleteItemAsync(key);
+  },
+};
+
+export const supabase = createClient(SUPABASE_URL, SUPABASE_ANON_KEY, {
+  auth: {
+    storage: ExpoSecureStoreAdapter,
+    autoRefreshToken: true,
+    persistSession: true,
+    detectSessionInUrl: false,
+  },
+});