feat(mobile): replace starter template with dashboard-driven app flow

MobileApp/src/config.ts

@@ -0,0 +1,30 @@
+import Constants from 'expo-constants';
+import { Platform } from 'react-native';
+
+const normalizeBaseUrl = (value: string): string => value.replace(/\/+$/, '');
+
+const hostFromExpo = (): string | null => {
+  const hostUri =
+    Constants.expoConfig?.hostUri ??
+    (Constants as unknown as { manifest2?: { extra?: { expoClient?: { hostUri?: string } } } }).manifest2?.extra
+      ?.expoClient?.hostUri;
+
+  if (!hostUri) return null;
+  const host = hostUri.split(':')[0]?.trim();
+  return host || null;
+};
+
+const detectDefaultBaseUrl = (): string => {
+  const host = hostFromExpo();
+  if (host && host !== 'localhost') {
+    return `http://${host}:3000`;
+  }
+
+  if (Platform.OS === 'android') {
+    return 'http://10.0.2.2:3000';
+  }
+
+  return 'http://localhost:3000';
+};
+
+export const API_BASE_URL = normalizeBaseUrl(process.env.EXPO_PUBLIC_API_BASE_URL || detectDefaultBaseUrl());