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, 89 insertions, 0 deletions

diff --git a/apps/mobile/lib/config.ts b/apps/mobile/lib/config.ts
new file mode 100644
index 0000000..70fce52
--- /dev/null
+++ b/apps/mobile/lib/config.ts
@@ -0,0 +1,89 @@
+import { Platform } from 'react-native';
+
+/**
+ * API configuration for Makima mobile app
+ * Supports different environments and platforms
+ */
+
+// Environment detection
+const isDevelopment = __DEV__;
+
+/**
+ * API base URLs for different environments
+ */
+export const API_CONFIG = {
+  local: 'http://localhost:8080',
+  // Use 10.0.2.2 for Android emulator to access host machine's localhost
+  localAndroid: 'http://10.0.2.2:8080',
+  production: 'https://api.makima.jp',
+} as const;
+
+/**
+ * Get the appropriate API base URL based on environment and platform
+ */
+export function getApiBaseUrl(): string {
+  // Check for environment variable override
+  const envUrl = process.env.EXPO_PUBLIC_API_URL;
+  if (envUrl) {
+    return envUrl;
+  }
+
+  // In production, use the production API
+  if (!isDevelopment) {
+    return API_CONFIG.production;
+  }
+
+  // In development, use local API with platform-specific URL
+  if (Platform.OS === 'android') {
+    return API_CONFIG.localAndroid;
+  }
+
+  return API_CONFIG.local;
+}
+
+/**
+ * App configuration object
+ */
+export const config = {
+  /**
+   * API base URL for making requests
+   */
+  apiBaseUrl: getApiBaseUrl(),
+
+  /**
+   * Whether the app is running in development mode
+   */
+  isDevelopment,
+
+  /**
+   * Supabase URL (from environment or default)
+   */
+  supabaseUrl: process.env.EXPO_PUBLIC_SUPABASE_URL || 'https://ynxyjytytmfwxjqxljzm.supabase.co',
+
+  /**
+   * App version
+   */
+  version: '1.0.0',
+
+  /**
+   * Support/help URL
+   */
+  supportUrl: 'https://makima.jp/support',
+
+  /**
+   * Privacy policy URL
+   */
+  privacyPolicyUrl: 'https://makima.jp/privacy',
+
+  /**
+   * Terms of service URL
+   */
+  termsOfServiceUrl: 'https://makima.jp/terms',
+
+  /**
+   * Forgot password URL (opens in browser)
+   */
+  forgotPasswordUrl: 'https://makima.jp/forgot-password',
+} as const;
+
+export type Config = typeof config;