feat(smart-app): implement complete mobile app MVP

- App.tsx: full navigation (Auth stack + Main tabs with 5 screens)
- Auth: LoginScreen, RegisterScreen, ForgotPasswordScreen
- HomeScreen: dashboard with IoT metrics, weather widget, alerts, quick actions, sensors
- MapScreen: interactive map with layer toggles (6 layers)
- MarketplaceScreen: categories (6), products (5), search
- ChatScreen: AI chat with quick prompts (4), bot responses
- ProfileScreen: user info, stats, menu (9 items), logout
- AlertsScreen: alert list with severity, acknowledge
- SensorsScreen: sensor list with type filters (6 types), search
- ZonesScreen: zone cards with stats
- SettingsScreen: language picker (FR/EN/ES/DE), privacy, about
- Stores: iotStore (sensors, zones, alerts), notificationStore, uiStore + i18n
- Hooks: useSensors, useAlerts, useNotifications, useLocation
- Components: Card, Button, LoadingSpinner, ErrorBoundary, Header
- Services: iotService, notificationService (with axios API client)
- Utils: formatters (temp, AQI, noise, dates), validators (email, password, IBAN)
- Theme: colors.ts with full design system (Blue Ocean palette)
- Ditto: fixed MongoDB connection, new JWT secrets, official gateway image

smart-app-city/frontend/node_modules/expo-asset/src/Asset.fx.ts

@@ -0,0 +1,20 @@
+import { Asset } from './Asset';
+import { IS_ENV_WITH_LOCAL_ASSETS } from './PlatformUtils';
+import { setCustomSourceTransformer } from './resolveAssetSource';
+
+// Override React Native's asset resolution for `Image` components in contexts where it matters
+if (IS_ENV_WITH_LOCAL_ASSETS) {
+  setCustomSourceTransformer((resolver) => {
+    try {
+      // Bundler is using the hashAssetFiles plugin if and only if the fileHashes property exists
+      if (resolver.asset.fileHashes) {
+        const asset = Asset.fromMetadata(resolver.asset);
+        return resolver.fromSource(asset.downloaded ? asset.localUri! : asset.uri);
+      } else {
+        return resolver.defaultAsset();
+      }
+    } catch {
+      return resolver.defaultAsset();
+    }
+  });
+}

smart-app-city/frontend/node_modules/expo-asset/src/Asset.ts

@@ -0,0 +1,271 @@
+import { getAssetByID } from '@react-native/assets-registry/registry';
+import { Platform } from 'expo-modules-core';
+
+import { AssetMetadata, selectAssetSource } from './AssetSources';
+import * as AssetUris from './AssetUris';
+import { downloadAsync } from './ExpoAsset';
+import * as ImageAssets from './ImageAssets';
+import { getLocalAssetUri } from './LocalAssets';
+import { IS_ENV_WITH_LOCAL_ASSETS } from './PlatformUtils';
+import resolveAssetSource from './resolveAssetSource';
+
+// @docsMissing
+export type AssetDescriptor = {
+  name: string;
+  type: string;
+  hash?: string | null;
+  uri: string;
+  width?: number | null;
+  height?: number | null;
+};
+
+type DownloadPromiseCallbacks = {
+  resolve: () => void;
+  reject: (error: Error) => void;
+};
+
+export { AssetMetadata };
+
+/**
+ * The `Asset` class represents an asset in your app. It gives metadata about the asset (such as its
+ * name and type) and provides facilities to load the asset data.
+ */
+export class Asset {
+  private static byHash = {};
+  private static byUri = {};
+
+  /**
+   * The name of the asset file without the extension. Also without the part from `@` onward in the
+   * filename (used to specify scale factor for images).
+   */
+  public name: string;
+  /**
+   * The extension of the asset filename.
+   */
+  public readonly type: string;
+  /**
+   * The MD5 hash of the asset's data.
+   */
+  public readonly hash: string | null = null;
+  /**
+   * A URI that points to the asset's data on the remote server. When running the published version
+   * of your app, this refers to the location on Expo's asset server where Expo has stored your
+   * asset. When running the app from Expo CLI during development, this URI points to Expo CLI's
+   * server running on your computer and the asset is served directly from your computer. If you
+   * are not using Classic Updates (legacy), this field should be ignored as we ensure your assets
+   * are on device before before running your application logic.
+   */
+  public readonly uri: string;
+  /**
+   * If the asset has been downloaded (by calling [`downloadAsync()`](#downloadasync)), the
+   * `file://` URI pointing to the local file on the device that contains the asset data.
+   */
+  public localUri: string | null = null;
+  /**
+   * If the asset is an image, the width of the image data divided by the scale factor. The scale
+   * factor is the number after `@` in the filename, or `1` if not present.
+   */
+  public width: number | null = null;
+  /**
+   * If the asset is an image, the height of the image data divided by the scale factor. The scale factor is the number after `@` in the filename, or `1` if not present.
+   */
+  public height: number | null = null;
+
+  private downloading: boolean = false;
+
+  /**
+   * Whether the asset has finished downloading from a call to [`downloadAsync()`](#downloadasync).
+   */
+  public downloaded: boolean = false;
+
+  private _downloadCallbacks: DownloadPromiseCallbacks[] = [];
+
+  constructor({ name, type, hash = null, uri, width, height }: AssetDescriptor) {
+    this.name = name;
+    this.type = type;
+    this.hash = hash;
+    this.uri = uri;
+
+    if (typeof width === 'number') {
+      this.width = width;
+    }
+    if (typeof height === 'number') {
+      this.height = height;
+    }
+
+    if (hash) {
+      this.localUri = getLocalAssetUri(hash, type);
+      if (this.localUri) {
+        this.downloaded = true;
+      }
+    }
+
+    if (Platform.OS === 'web') {
+      if (!name) {
+        this.name = AssetUris.getFilename(uri);
+      }
+      if (!type) {
+        this.type = AssetUris.getFileExtension(uri);
+      }
+    }
+  }
+
+  // @needsAudit
+  /**
+   * A helper that wraps `Asset.fromModule(module).downloadAsync` for convenience.
+   * @param moduleId An array of `require('path/to/file')` or external network URLs. Can also be
+   * just one module or URL without an Array.
+   * @return Returns a Promise that fulfills with an array of `Asset`s when the asset(s) has been
+   * saved to disk.
+   * @example
+   * ```ts
+   * const [{ localUri }] = await Asset.loadAsync(require('./assets/snack-icon.png'));
+   * ```
+   */
+  static loadAsync(moduleId: number | number[] | string | string[]): Promise<Asset[]> {
+    const moduleIds = Array.isArray(moduleId) ? moduleId : [moduleId];
+    return Promise.all(moduleIds.map((moduleId) => Asset.fromModule(moduleId).downloadAsync()));
+  }
+
+  // @needsAudit
+  /**
+   * Returns the [`Asset`](#asset) instance representing an asset given its module or URL.
+   * @param virtualAssetModule The value of `require('path/to/file')` for the asset or external
+   * network URL
+   * @return The [`Asset`](#asset) instance for the asset.
+   */
+  static fromModule(virtualAssetModule: number | string): Asset {
+    if (typeof virtualAssetModule === 'string') {
+      return Asset.fromURI(virtualAssetModule);
+    }
+
+    const meta = getAssetByID(virtualAssetModule);
+    if (!meta) {
+      throw new Error(`Module "${virtualAssetModule}" is missing from the asset registry`);
+    }
+
+    // Outside of the managed env we need the moduleId to initialize the asset
+    // because resolveAssetSource depends on it
+    if (!IS_ENV_WITH_LOCAL_ASSETS) {
+      // null-check is performed above with `getAssetByID`.
+      const { uri } = resolveAssetSource(virtualAssetModule)!;
+
+      const asset = new Asset({
+        name: meta.name,
+        type: meta.type,
+        hash: meta.hash,
+        uri,
+        width: meta.width,
+        height: meta.height,
+      });
+
+      // For images backward compatibility,
+      // keeps localUri the same as uri for React Native's Image that
+      // works fine with drawable resource names.
+      if (Platform.OS === 'android' && !uri.includes(':') && (meta.width || meta.height)) {
+        asset.localUri = asset.uri;
+        asset.downloaded = true;
+      }
+
+      Asset.byHash[meta.hash] = asset;
+      return asset;
+    }
+
+    return Asset.fromMetadata(meta);
+  }
+
+  // @docsMissing
+  static fromMetadata(meta: AssetMetadata): Asset {
+    // The hash of the whole asset, not to be confused with the hash of a specific file returned
+    // from `selectAssetSource`
+    const metaHash = meta.hash;
+    if (Asset.byHash[metaHash]) {
+      return Asset.byHash[metaHash];
+    }
+
+    const { uri, hash } = selectAssetSource(meta);
+    const asset = new Asset({
+      name: meta.name,
+      type: meta.type,
+      hash,
+      uri,
+      width: meta.width,
+      height: meta.height,
+    });
+    Asset.byHash[metaHash] = asset;
+    return asset;
+  }
+
+  // @docsMissing
+  static fromURI(uri: string): Asset {
+    if (Asset.byUri[uri]) {
+      return Asset.byUri[uri];
+    }
+
+    // Possibly a Base64-encoded URI
+    let type = '';
+    if (uri.indexOf(';base64') > -1) {
+      type = uri.split(';')[0].split('/')[1];
+    } else {
+      const extension = AssetUris.getFileExtension(uri);
+      type = extension.startsWith('.') ? extension.substring(1) : extension;
+    }
+
+    const asset = new Asset({
+      name: '',
+      type,
+      hash: null,
+      uri,
+    });
+
+    Asset.byUri[uri] = asset;
+
+    return asset;
+  }
+
+  // @needsAudit
+  /**
+   * Downloads the asset data to a local file in the device's cache directory. Once the returned
+   * promise is fulfilled without error, the [`localUri`](#localuri) field of this asset points
+   * to a local file containing the asset data. The asset is only downloaded if an up-to-date local
+   * file for the asset isn't already present due to an earlier download. The downloaded `Asset`
+   * will be returned when the promise is resolved.
+   * @return Returns a Promise which fulfills with an `Asset` instance.
+   */
+  async downloadAsync(): Promise<this> {
+    if (this.downloaded) {
+      return this;
+    }
+    if (this.downloading) {
+      await new Promise<void>((resolve, reject) => {
+        this._downloadCallbacks.push({ resolve, reject });
+      });
+      return this;
+    }
+    this.downloading = true;
+
+    try {
+      if (Platform.OS === 'web') {
+        if (ImageAssets.isImageType(this.type)) {
+          const { width, height, name } = await ImageAssets.getImageInfoAsync(this.uri);
+          this.width = width;
+          this.height = height;
+          this.name = name;
+        } else {
+          this.name = AssetUris.getFilename(this.uri);
+        }
+      }
+      this.localUri = await downloadAsync(this.uri, this.hash, this.type);
+
+      this.downloaded = true;
+      this._downloadCallbacks.forEach(({ resolve }) => resolve());
+    } catch (e) {
+      this._downloadCallbacks.forEach(({ reject }) => reject(e));
+      throw e;
+    } finally {
+      this.downloading = false;
+      this._downloadCallbacks = [];
+    }
+    return this;
+  }
+}

smart-app-city/frontend/node_modules/expo-asset/src/AssetHooks.ts

@@ -0,0 +1,35 @@
+import { useEffect, useState } from 'react';
+
+import { Asset } from './Asset';
+
+// @needsAudit
+/**
+ * Downloads and stores one or more assets locally.
+ * After the assets are loaded, this hook returns a list of asset instances.
+ * If something went wrong when loading the assets, an error is returned.
+ *
+ * > Note, the assets are not "reloaded" when you dynamically change the asset list.
+ *
+ * @return Returns an array containing:
+ * - on the first position, a list of all loaded assets. If they aren't loaded yet, this value is
+ *   `undefined`.
+ * - on the second position, an error which encountered when loading the assets. If there was no
+ *   error, this value is `undefined`.
+ *
+ * @example
+ * ```tsx
+ * const [assets, error] = useAssets([require('path/to/asset.jpg'), require('path/to/other.png')]);
+ *
+ * return assets ? <Image source={assets[0]} /> : null;
+ * ```
+ */
+export function useAssets(moduleIds: number | number[]): [Asset[] | undefined, Error | undefined] {
+  const [assets, setAssets] = useState<Asset[]>();
+  const [error, setError] = useState<Error>();
+
+  useEffect(() => {
+    Asset.loadAsync(moduleIds).then(setAssets).catch(setError);
+  }, []);
+
+  return [assets, error];
+}

smart-app-city/frontend/node_modules/expo-asset/src/AssetSourceResolver.native.ts

@@ -0,0 +1,3 @@
+import AssetSourceResolver from 'react-native/Libraries/Image/AssetSourceResolver';
+export default AssetSourceResolver;
+export * from 'react-native/Libraries/Image/AssetSourceResolver';

smart-app-city/frontend/node_modules/expo-asset/src/AssetSourceResolver.ts

@@ -0,0 +1,88 @@
+import type { PackagerAsset } from '@react-native/assets-registry/registry';
+import { Platform } from 'expo-modules-core';
+import { PixelRatio } from 'react-native';
+
+export type ResolvedAssetSource = {
+  __packager_asset: boolean;
+  width?: number;
+  height?: number;
+  uri: string;
+  scale: number;
+};
+
+// Returns the Metro dev server-specific asset location.
+function getScaledAssetPath(asset): string {
+  const scale = AssetSourceResolver.pickScale(asset.scales, PixelRatio.get());
+  const scaleSuffix = scale === 1 ? '' : '@' + scale + 'x';
+  const type = !asset.type ? '' : `.${asset.type}`;
+  if (__DEV__) {
+    return asset.httpServerLocation + '/' + asset.name + scaleSuffix + type;
+  } else {
+    return asset.httpServerLocation.replace(/\.\.\//g, '_') + '/' + asset.name + scaleSuffix + type;
+  }
+}
+
+export default class AssetSourceResolver {
+  private readonly serverUrl: string;
+  // where the jsbundle is being run from
+  // NOTE(EvanBacon): Never defined on web.
+  private readonly jsbundleUrl: string | undefined | null;
+  // the asset to resolve
+  public readonly asset: PackagerAsset;
+
+  constructor(
+    serverUrl: string | undefined | null,
+    jsbundleUrl: string | undefined | null,
+    asset: PackagerAsset
+  ) {
+    this.serverUrl = serverUrl || 'https://expo.dev';
+    this.jsbundleUrl = null;
+    this.asset = asset;
+  }
+
+  // Always true for web runtimes
+  isLoadedFromServer(): boolean {
+    return true;
+  }
+
+  // Always false for web runtimes
+  isLoadedFromFileSystem(): boolean {
+    return false;
+  }
+
+  defaultAsset(): ResolvedAssetSource {
+    return this.assetServerURL();
+  }
+
+  /**
+   * @returns absolute remote URL for the hosted asset.
+   */
+  assetServerURL(): ResolvedAssetSource {
+    const fromUrl = new URL(getScaledAssetPath(this.asset), this.serverUrl);
+    fromUrl.searchParams.set('platform', Platform.OS);
+    fromUrl.searchParams.set('hash', this.asset.hash);
+    return this.fromSource(
+      // Relative on web
+      fromUrl.toString().replace(fromUrl.origin, '')
+    );
+  }
+
+  fromSource(source: string): ResolvedAssetSource {
+    return {
+      __packager_asset: true,
+      width: this.asset.width ?? undefined,
+      height: this.asset.height ?? undefined,
+      uri: source,
+      scale: AssetSourceResolver.pickScale(this.asset.scales, PixelRatio.get()),
+    };
+  }
+
+  static pickScale(scales: number[], deviceScale: number): number {
+    for (let i = 0; i < scales.length; i++) {
+      if (scales[i] >= deviceScale) {
+        return scales[i];
+      }
+    }
+    return scales[scales.length - 1] || 1;
+  }
+}

smart-app-city/frontend/node_modules/expo-asset/src/AssetSources.ts

@@ -0,0 +1,121 @@
+import type { PackagerAsset } from '@react-native/assets-registry/registry';
+import { Platform } from 'expo-modules-core';
+import { PixelRatio, NativeModules } from 'react-native';
+
+import AssetSourceResolver from './AssetSourceResolver';
+import { getManifest2, manifestBaseUrl } from './PlatformUtils';
+
+// @docsMissing
+export type AssetMetadata = Pick<
+  PackagerAsset,
+  'httpServerLocation' | 'name' | 'hash' | 'type' | 'scales' | 'width' | 'height'
+> & {
+  uri?: string;
+  fileHashes?: string[];
+  fileUris?: string[];
+};
+
+export type AssetSource = {
+  uri: string;
+  hash: string;
+};
+
+/**
+ * Selects the best file for the given asset (ex: choosing the best scale for images) and returns
+ * a { uri, hash } pair for the specific asset file.
+ *
+ * If the asset isn't an image with multiple scales, the first file is selected.
+ */
+export function selectAssetSource(meta: AssetMetadata): AssetSource {
+  // This logic is based on that of AssetSourceResolver, with additional support for file hashes and
+  // explicitly provided URIs
+  const scale = AssetSourceResolver.pickScale(meta.scales, PixelRatio.get());
+  const index = meta.scales.findIndex((s) => s === scale);
+  const hash = meta.fileHashes ? meta.fileHashes[index] ?? meta.fileHashes[0] : meta.hash;
+
+  // Allow asset processors to directly provide the URL to load
+  const uri = meta.fileUris ? meta.fileUris[index] ?? meta.fileUris[0] : meta.uri;
+  if (uri) {
+    return { uri: resolveUri(uri), hash };
+  }
+
+  const fileScale = scale === 1 ? '' : `@${scale}x`;
+  const fileExtension = meta.type ? `.${encodeURIComponent(meta.type)}` : '';
+  const suffix = `/${encodeURIComponent(meta.name)}${fileScale}${fileExtension}`;
+  const params = new URLSearchParams({
+    platform: Platform.OS,
+    hash: meta.hash,
+  });
+
+  // For assets with a specified absolute URL, we use the existing origin instead of prepending the
+  // development server or production CDN URL origin
+  if (/^https?:\/\//.test(meta.httpServerLocation)) {
+    const uri = meta.httpServerLocation + suffix + '?' + params;
+    return { uri, hash };
+  }
+
+  // For assets during development using manifest2, we use the development server's URL origin
+  const manifest2 = getManifest2();
+
+  const devServerUrl = manifest2?.extra?.expoGo?.developer
+    ? 'http://' + manifest2.extra.expoGo.debuggerHost
+    : null;
+  if (devServerUrl) {
+    const baseUrl = new URL(meta.httpServerLocation + suffix, devServerUrl);
+
+    baseUrl.searchParams.set('platform', Platform.OS);
+    baseUrl.searchParams.set('hash', meta.hash);
+    return {
+      uri: baseUrl.href,
+      hash,
+    };
+  }
+
+  // Temporary fallback for loading assets in Expo Go home
+  if (NativeModules.ExponentKernel) {
+    return { uri: `https://classic-assets.eascdn.net/~assets/${encodeURIComponent(hash)}`, hash };
+  }
+
+  // In correctly configured apps, we arrive here if the asset is locally available on disk due to
+  // being managed by expo-updates, and `getLocalAssetUri(hash)` must return a local URI for this
+  // hash. Since the asset is local, we don't have a remote URL and specify an invalid URL (an empty
+  // string) as a placeholder.
+  return { uri: '', hash };
+}
+
+/**
+ * Resolves the given URI to an absolute URI. If the given URI is already an absolute URI, it is
+ * simply returned. Otherwise, if it is a relative URI, it is resolved relative to the manifest's
+ * base URI.
+ */
+export function resolveUri(uri: string): string {
+  // `manifestBaseUrl` is always an absolute URL or `null`.
+  return manifestBaseUrl ? new URL(uri, manifestBaseUrl).href : uri;
+}
+
+// A very cheap path canonicalization like path.join but without depending on a `path` polyfill.
+export function pathJoin(...paths: string[]): string {
+  // Start by simply combining paths, without worrying about ".." or "."
+  const combined = paths
+    .map((part, index) => {
+      if (index === 0) {
+        return part.trim().replace(/\/*$/, '');
+      }
+      return part.trim().replace(/(^\/*|\/*$)/g, '');
+    })
+    .filter((part) => part.length > 0)
+    .join('/')
+    .split('/');
+
+  // Handle ".." and "." in paths
+  const resolved: string[] = [];
+  for (const part of combined) {
+    if (part === '..') {
+      resolved.pop(); // Remove the last element from the result
+    } else if (part !== '.') {
+      resolved.push(part);
+    }
+  }
+
+  return resolved.join('/');
+}

smart-app-city/frontend/node_modules/expo-asset/src/AssetUris.ts

@@ -0,0 +1,63 @@
+export function getFilename(url: string): string {
+  const { pathname, searchParams } = new URL(url, 'https://e');
+
+  // When attached to a dev server, we use `unstable_path` to represent the file path. This ensures
+  // the file name is not canonicalized by the browser.
+  // NOTE(EvanBacon): This is technically not tied to `__DEV__` as it's possible to use this while bundling in production
+  // mode.
+  if (__DEV__) {
+    if (searchParams.has('unstable_path')) {
+      const encodedFilePath = decodeURIComponent(searchParams.get('unstable_path')!);
+      return getBasename(encodedFilePath);
+    }
+  }
+
+  return getBasename(pathname);
+}
+
+function getBasename(pathname: string): string {
+  return pathname.substring(pathname.lastIndexOf('/') + 1);
+}
+
+export function getFileExtension(url: string): string {
+  const filename = getFilename(url);
+  const dotIndex = filename.lastIndexOf('.');
+  // Ignore leading dots for hidden files
+  return dotIndex > 0 ? filename.substring(dotIndex) : '';
+}
+
+/**
+ * Returns the base URL from a manifest's URL. For example, given a manifest hosted at
+ * https://example.com/app/manifest.json, the base URL would be https://example.com/app/. Query
+ * parameters and fragments also are removed.
+ *
+ * For an Expo-hosted project with a manifest hosted at https://exp.host/@user/project/index.exp, the
+ * base URL would be https://exp.host/@user/project.
+ *
+ * We also normalize the "exp" protocol to "http" to handle internal URLs with the Expo schemes used
+ * to tell the OS to open the URLs in the the Expo client.
+ */
+export function getManifestBaseUrl(manifestUrl: string): string {
+  const urlObject = new URL(manifestUrl);
+
+  let nextProtocol = urlObject.protocol;
+  // Change the scheme to http(s) if it is exp(s)
+  if (nextProtocol === 'exp:') {
+    nextProtocol = 'http:';
+  } else if (nextProtocol === 'exps:') {
+    nextProtocol = 'https:';
+  }
+  urlObject.protocol = nextProtocol;
+
+  // Trim filename, query parameters, and fragment, if any
+  const directory = urlObject.pathname.substring(0, urlObject.pathname.lastIndexOf('/') + 1);
+  urlObject.pathname = directory;
+  urlObject.search = '';
+  urlObject.hash = '';
+
+  // The URL spec doesn't allow for changing the protocol to `http` or `https`
+  // without a port set so instead, we'll just swap the protocol manually.
+  return urlObject.protocol !== nextProtocol
+    ? urlObject.href.replace(urlObject.protocol, nextProtocol)
+    : urlObject.href;
+}

smart-app-city/frontend/node_modules/expo-asset/src/ExpoAsset.ts

@@ -0,0 +1,20 @@
+import { requireNativeModule } from 'expo-modules-core';
+
+const AssetModule = requireNativeModule('ExpoAsset');
+
+/**
+ * Downloads the asset from the given URL to a local cache and returns the local URL of the cached
+ * file.
+ *
+ * If there is already a locally cached file and its MD5 hash matches the given `md5Hash` parameter,
+ * if present, the remote asset is not downloaded. The `hash` property is included in Metro's asset
+ * metadata objects when this module's `hashAssetFiles` plugin is used, which is the typical way the
+ * `md5Hash` parameter of this function is provided.
+ */
+export async function downloadAsync(
+  url: string,
+  md5Hash: string | null,
+  type: string
+): Promise<string> {
+  return AssetModule.downloadAsync(url, md5Hash, type);
+}

smart-app-city/frontend/node_modules/expo-asset/src/ExpoAsset.web.ts

@@ -0,0 +1,7 @@
+export async function downloadAsync(
+  url: string,
+  _hash: string | null,
+  _type: string
+): Promise<string> {
+  return url;
+}

smart-app-city/frontend/node_modules/expo-asset/src/ImageAssets.ts

@@ -0,0 +1,32 @@
+/* eslint-env browser */
+import { Platform } from 'expo-modules-core';
+
+import { getFilename } from './AssetUris';
+
+type ImageInfo = {
+  name: string;
+  width: number;
+  height: number;
+};
+
+export function isImageType(type: string): boolean {
+  return /^(jpeg|jpg|gif|png|bmp|webp|heic)$/i.test(type);
+}
+
+export function getImageInfoAsync(url: string): Promise<ImageInfo> {
+  if (!Platform.isDOMAvailable) {
+    return Promise.resolve({ name: getFilename(url), width: 0, height: 0 });
+  }
+  return new Promise((resolve, reject) => {
+    const img = new Image();
+    img.onerror = reject;
+    img.onload = () => {
+      resolve({
+        name: getFilename(url),
+        width: img.naturalWidth,
+        height: img.naturalHeight,
+      });
+    };
+    img.src = url;
+  });
+}

smart-app-city/frontend/node_modules/expo-asset/src/LocalAssets.ts

@@ -0,0 +1,24 @@
+import { getLocalAssets } from './PlatformUtils';
+
+// localAssets are provided by the expo-updates module
+const localAssets = getLocalAssets();
+
+/**
+ * Returns the URI of a local asset from its hash, or null if the asset is not available locally
+ */
+export function getLocalAssetUri(hash: string, type: string | null): string | null {
+  const localAssetsKey = hash;
+  const legacyLocalAssetsKey = `${hash}.${type ?? ''}`;
+
+  switch (true) {
+    case localAssetsKey in localAssets: {
+      return localAssets[localAssetsKey];
+    }
+    case legacyLocalAssetsKey in localAssets: {
+      // legacy updates store assets with an extension
+      return localAssets[legacyLocalAssetsKey];
+    }
+    default:
+      return null;
+  }
+}

smart-app-city/frontend/node_modules/expo-asset/src/LocalAssets.web.ts

@@ -0,0 +1,4 @@
+export function getLocalAssetUri(hash: string, type: string | null): string | null {
+  // noop on web
+  return null;
+}

smart-app-city/frontend/node_modules/expo-asset/src/PlatformUtils.ts

@@ -0,0 +1,39 @@
+import Constants, { AppOwnership } from 'expo-constants';
+import { requireOptionalNativeModule } from 'expo-modules-core';
+// @ts-ignore -- optional interface, will gracefully degrade to `any` if not installed
+import type { ExpoUpdatesModule } from 'expo-updates';
+
+import { getManifestBaseUrl } from './AssetUris';
+
+const ExpoUpdates = requireOptionalNativeModule<ExpoUpdatesModule>('ExpoUpdates');
+
+const isRunningInExpoGo = Constants.appOwnership === AppOwnership.Expo;
+
+// expo-updates (and Expo Go expo-updates override) manages assets from updates and exposes
+// the ExpoUpdates.localAssets constant containing information about the assets.
+const expoUpdatesIsInstalledAndEnabled = !!ExpoUpdates?.isEnabled;
+const expoUpdatesIsUsingEmbeddedAssets = ExpoUpdates?.isUsingEmbeddedAssets;
+
+// if expo-updates is installed but we're running directly from the embedded bundle, we don't want
+// to override the AssetSourceResolver.
+const shouldUseUpdatesAssetResolution =
+  expoUpdatesIsInstalledAndEnabled && !expoUpdatesIsUsingEmbeddedAssets;
+
+// Expo Go always uses the updates module for asset resolution (local assets) since it
+// overrides the expo-updates module.
+export const IS_ENV_WITH_LOCAL_ASSETS = isRunningInExpoGo || shouldUseUpdatesAssetResolution;
+
+// Get the localAssets property from the ExpoUpdates native module so that we do
+// not need to include expo-updates as a dependency of expo-asset
+export function getLocalAssets(): Record<string, string> {
+  return ExpoUpdates?.localAssets ?? {};
+}
+
+export function getManifest2(): typeof Constants.__unsafeNoWarnManifest2 {
+  return Constants.__unsafeNoWarnManifest2;
+}
+
+// Compute manifest base URL if available
+export const manifestBaseUrl = Constants.experienceUrl
+  ? getManifestBaseUrl(Constants.experienceUrl)
+  : null;

smart-app-city/frontend/node_modules/expo-asset/src/PlatformUtils.web.ts

@@ -0,0 +1,12 @@
+export const IS_ENV_WITH_LOCAL_ASSETS = false;
+
+export function getLocalAssets(): Record<string, string> {
+  return {};
+}
+
+export function getManifest2() {
+  return {};
+}
+
+// Compute manifest base URL if available
+export const manifestBaseUrl = null;

smart-app-city/frontend/node_modules/expo-asset/src/index.ts

@@ -0,0 +1,4 @@
+import './Asset.fx';
+
+export * from './Asset';
+export * from './AssetHooks';

smart-app-city/frontend/node_modules/expo-asset/src/resolveAssetSource.native.ts

@@ -0,0 +1,3 @@
+import resolveAssetSource from 'react-native/Libraries/Image/resolveAssetSource';
+export default resolveAssetSource;
+export * from 'react-native/Libraries/Image/resolveAssetSource'; // eslint-disable-line import/export

smart-app-city/frontend/node_modules/expo-asset/src/resolveAssetSource.ts

@@ -0,0 +1,45 @@
+import { getAssetByID } from '@react-native/assets-registry/registry';
+
+import AssetSourceResolver, { ResolvedAssetSource } from './AssetSourceResolver';
+
+let _customSourceTransformer: (resolver: AssetSourceResolver) => ResolvedAssetSource;
+
+export function setCustomSourceTransformer(
+  transformer: (resolver: AssetSourceResolver) => ResolvedAssetSource
+): void {
+  _customSourceTransformer = transformer;
+}
+
+/**
+ * `source` is either a number (opaque type returned by require('./foo.png'))
+ * or an `ImageSource` like { uri: '<http location || file path>' }
+ */
+export default function resolveAssetSource(source: any): ResolvedAssetSource | null {
+  if (typeof source === 'object') {
+    return source;
+  }
+
+  const asset = getAssetByID(source);
+  if (!asset) {
+    return null;
+  }
+
+  const resolver = new AssetSourceResolver(
+    // Doesn't matter since this is removed on web
+    'https://expo.dev',
+    null,
+    asset
+  );
+  if (_customSourceTransformer) {
+    return _customSourceTransformer(resolver);
+  }
+  return resolver.defaultAsset();
+}
+
+Object.defineProperty(resolveAssetSource, 'setCustomSourceTransformer', {
+  get() {
+    return setCustomSourceTransformer;
+  },
+});
+
+export const { pickScale } = AssetSourceResolver;

smart-app-city/frontend/node_modules/expo-asset/src/ts-declarations/react-native-assets.d.ts

@@ -0,0 +1,43 @@
+declare module 'react-native/Libraries/Image/AssetSourceResolver' {
+  import { PackagerAsset } from '@react-native/assets/registry';
+
+  export type ResolvedAssetSource = {
+    __packager_asset: boolean;
+    width: number | null;
+    height: number | null;
+    uri: string;
+    scale: number;
+  };
+
+  export default class AssetSourceResolver {
+    serverUrl: string | null;
+    jsbundleUrl: string | null;
+    asset: PackagerAsset & { fileHashes?: string[] };
+
+    constructor(serverUrl: string | null, jsbundleUrl: string | null, asset: PackagerAsset);
+
+    isLoadedFromServer(): boolean;
+    isLoadedFromFileSystem(): boolean;
+    defaultAsset(): ResolvedAssetSource;
+    assetServerURL(): ResolvedAssetSource;
+    scaledAssetPath(): ResolvedAssetSource;
+    scaledAssetURLNearBundle(): ResolvedAssetSource;
+    resourceIdentifierWithoutScale(): ResolvedAssetSource;
+    drawableFolderInBundle(): ResolvedAssetSource;
+    fromSource(source: string): ResolvedAssetSource;
+
+    static pickScale(scales: number[], deviceScale: number): number;
+  }
+}
+
+declare module 'react-native/Libraries/Image/resolveAssetSource' {
+  import AssetSourceResolver, {
+    ResolvedAssetSource,
+  } from 'react-native/Libraries/Image/AssetSourceResolver';
+
+  export default function resolveAssetSource(source: any): ResolvedAssetSource | null;
+
+  export function setCustomSourceTransformer(
+    transformer: (resolver: AssetSourceResolver) => ResolvedAssetSource
+  ): void;
+}