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/react-native/Libraries/WebSocket/NativeWebSocketModule.js

@@ -0,0 +1,13 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @flow strict-local
+ * @format
+ */
+
+export * from '../../src/private/specs/modules/NativeWebSocketModule';
+import NativeWebSocketModule from '../../src/private/specs/modules/NativeWebSocketModule';
+export default NativeWebSocketModule;

smart-app-city/frontend/node_modules/react-native/Libraries/WebSocket/RCTReconnectingWebSocket.h

@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#import <React/RCTDefines.h>
+
+#if RCT_DEV // Only supported in dev mode
+
+@class RCTReconnectingWebSocket;
+
+@protocol RCTReconnectingWebSocketDelegate
+- (void)reconnectingWebSocketDidOpen:(RCTReconnectingWebSocket *)webSocket;
+- (void)reconnectingWebSocket:(RCTReconnectingWebSocket *)webSocket didReceiveMessage:(id)message;
+/** Sent when the socket has closed due to error or clean shutdown. An automatic reconnect will start shortly. */
+- (void)reconnectingWebSocketDidClose:(RCTReconnectingWebSocket *)webSocket;
+@end
+
+@interface RCTReconnectingWebSocket : NSObject
+
+/** Delegate will be messaged on the given queue (required). */
+- (instancetype)initWithURL:(NSURL *)url queue:(dispatch_queue_t)queue;
+
+@property (nonatomic, weak) id<RCTReconnectingWebSocketDelegate> delegate;
+- (void)send:(id)data;
+- (void)start;
+- (void)stop;
+
+- (instancetype)initWithURL:(NSURL *)url __deprecated_msg("Use initWithURL:queue: instead");
+/** @brief Must be set before -start to have effect */
+@property (nonatomic, strong) dispatch_queue_t delegateDispatchQueue __deprecated_msg("Use initWithURL:queue: instead");
+
+@end
+
+#endif

smart-app-city/frontend/node_modules/react-native/Libraries/WebSocket/RCTReconnectingWebSocket.m

@@ -0,0 +1,109 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#import <React/RCTReconnectingWebSocket.h>
+
+#import <React/RCTConvert.h>
+#import <React/RCTDefines.h>
+
+#import <SocketRocket/SRWebSocket.h>
+
+#if RCT_DEV // Only supported in dev mode
+
+@interface RCTReconnectingWebSocket () <SRWebSocketDelegate>
+@end
+
+@implementation RCTReconnectingWebSocket {
+  NSURL *_url;
+  SRWebSocket *_socket;
+  BOOL _stopped;
+}
+
+- (instancetype)initWithURL:(NSURL *)url queue:(dispatch_queue_t)queue
+{
+  if (self = [super init]) {
+    _url = url;
+    _delegateDispatchQueue = queue;
+  }
+  return self;
+}
+
+- (instancetype)initWithURL:(NSURL *)url
+{
+  return [self initWithURL:url queue:dispatch_get_main_queue()];
+}
+
+- (void)send:(id)data
+{
+  [_socket sendData:data error:nil];
+}
+
+- (void)start
+{
+  [self stop];
+  _stopped = NO;
+  _socket = [[SRWebSocket alloc] initWithURL:_url];
+  _socket.delegate = self;
+  [_socket setDelegateDispatchQueue:_delegateDispatchQueue];
+  [_socket open];
+}
+
+- (void)stop
+{
+  _stopped = YES;
+  _socket.delegate = nil;
+  [_socket closeWithCode:1000 reason:@"Invalidated"];
+  _socket = nil;
+}
+
+- (void)webSocket:(SRWebSocket *)webSocket didReceiveMessage:(id)message
+{
+  [_delegate reconnectingWebSocket:self didReceiveMessage:message];
+}
+
+- (void)reconnect
+{
+  if (_stopped) {
+    return;
+  }
+
+  __weak SRWebSocket *socket = _socket;
+  __weak __typeof(self) weakSelf = self;
+
+  dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(2 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
+    [weakSelf start];
+    if (!socket) {
+      [weakSelf reconnect];
+    }
+  });
+}
+
+- (void)webSocketDidOpen:(SRWebSocket *)webSocket
+{
+  [_delegate reconnectingWebSocketDidOpen:self];
+}
+
+- (void)webSocket:(SRWebSocket *)webSocket didFailWithError:(NSError *)error
+{
+  [_delegate reconnectingWebSocketDidClose:self];
+  if ([error code] != ECONNREFUSED) {
+    [self reconnect];
+  }
+}
+
+- (void)webSocket:(SRWebSocket *)webSocket
+    didCloseWithCode:(NSInteger)code
+              reason:(NSString *)reason
+            wasClean:(BOOL)wasClean
+{
+  [_delegate reconnectingWebSocketDidClose:self];
+  [self reconnect];
+}
+
+@end
+
+#endif

smart-app-city/frontend/node_modules/react-native/Libraries/WebSocket/WebSocket.js

@@ -0,0 +1,297 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ * @flow
+ */
+
+import type {BlobData} from '../Blob/BlobTypes';
+import type {EventSubscription} from '../vendor/emitter/EventEmitter';
+
+import Blob from '../Blob/Blob';
+import BlobManager from '../Blob/BlobManager';
+import NativeEventEmitter from '../EventEmitter/NativeEventEmitter';
+import binaryToBase64 from '../Utilities/binaryToBase64';
+import Platform from '../Utilities/Platform';
+import NativeWebSocketModule from './NativeWebSocketModule';
+import WebSocketEvent from './WebSocketEvent';
+import base64 from 'base64-js';
+import EventTarget from 'event-target-shim';
+import invariant from 'invariant';
+
+type ArrayBufferView =
+  | Int8Array
+  | Uint8Array
+  | Uint8ClampedArray
+  | Int16Array
+  | Uint16Array
+  | Int32Array
+  | Uint32Array
+  | Float32Array
+  | Float64Array
+  | DataView;
+
+type BinaryType = 'blob' | 'arraybuffer';
+
+const CONNECTING = 0;
+const OPEN = 1;
+const CLOSING = 2;
+const CLOSED = 3;
+
+const CLOSE_NORMAL = 1000;
+
+// Abnormal closure where no code is provided in a control frame
+// https://www.rfc-editor.org/rfc/rfc6455.html#section-7.1.5
+const CLOSE_ABNORMAL = 1006;
+
+const WEBSOCKET_EVENTS = ['close', 'error', 'message', 'open'];
+
+let nextWebSocketId = 0;
+
+type WebSocketEventDefinitions = {
+  websocketOpen: [{id: number, protocol: string}],
+  websocketClosed: [{id: number, code: number, reason: string}],
+  websocketMessage: [
+    | {type: 'binary', id: number, data: string}
+    | {type: 'text', id: number, data: string}
+    | {type: 'blob', id: number, data: BlobData},
+  ],
+  websocketFailed: [{id: number, message: string}],
+};
+
+/**
+ * Browser-compatible WebSockets implementation.
+ *
+ * See https://developer.mozilla.org/en-US/docs/Web/API/WebSocket
+ * See https://github.com/websockets/ws
+ */
+class WebSocket extends (EventTarget(...WEBSOCKET_EVENTS): any) {
+  static CONNECTING: number = CONNECTING;
+  static OPEN: number = OPEN;
+  static CLOSING: number = CLOSING;
+  static CLOSED: number = CLOSED;
+
+  CONNECTING: number = CONNECTING;
+  OPEN: number = OPEN;
+  CLOSING: number = CLOSING;
+  CLOSED: number = CLOSED;
+
+  _socketId: number;
+  _eventEmitter: NativeEventEmitter<WebSocketEventDefinitions>;
+  _subscriptions: Array<EventSubscription>;
+  _binaryType: ?BinaryType;
+
+  onclose: ?Function;
+  onerror: ?Function;
+  onmessage: ?Function;
+  onopen: ?Function;
+
+  bufferedAmount: number;
+  extension: ?string;
+  protocol: ?string;
+  readyState: number = CONNECTING;
+  url: ?string;
+
+  constructor(
+    url: string,
+    protocols: ?string | ?Array<string>,
+    options: ?{headers?: {origin?: string, ...}, ...},
+  ) {
+    super();
+    this.url = url;
+    if (typeof protocols === 'string') {
+      protocols = [protocols];
+    }
+
+    const {headers = {}, ...unrecognized} = options || {};
+
+    // Preserve deprecated backwards compatibility for the 'origin' option
+    // $FlowFixMe[prop-missing]
+    if (unrecognized && typeof unrecognized.origin === 'string') {
+      console.warn(
+        'Specifying `origin` as a WebSocket connection option is deprecated. Include it under `headers` instead.',
+      );
+      /* $FlowFixMe[prop-missing] (>=0.54.0 site=react_native_fb,react_native_
+       * oss) This comment suppresses an error found when Flow v0.54 was
+       * deployed. To see the error delete this comment and run Flow. */
+      headers.origin = unrecognized.origin;
+      /* $FlowFixMe[prop-missing] (>=0.54.0 site=react_native_fb,react_native_
+       * oss) This comment suppresses an error found when Flow v0.54 was
+       * deployed. To see the error delete this comment and run Flow. */
+      delete unrecognized.origin;
+    }
+
+    // Warn about and discard anything else
+    if (Object.keys(unrecognized).length > 0) {
+      console.warn(
+        'Unrecognized WebSocket connection option(s) `' +
+          Object.keys(unrecognized).join('`, `') +
+          '`. ' +
+          'Did you mean to put these under `headers`?',
+      );
+    }
+
+    if (!Array.isArray(protocols)) {
+      protocols = null;
+    }
+
+    this._eventEmitter = new NativeEventEmitter(
+      // T88715063: NativeEventEmitter only used this parameter on iOS. Now it uses it on all platforms, so this code was modified automatically to preserve its behavior
+      // If you want to use the native module on other platforms, please remove this condition and test its behavior
+      Platform.OS !== 'ios' ? null : NativeWebSocketModule,
+    );
+    this._socketId = nextWebSocketId++;
+    this._registerEvents();
+    NativeWebSocketModule.connect(url, protocols, {headers}, this._socketId);
+  }
+
+  get binaryType(): ?BinaryType {
+    return this._binaryType;
+  }
+
+  set binaryType(binaryType: BinaryType): void {
+    if (binaryType !== 'blob' && binaryType !== 'arraybuffer') {
+      throw new Error("binaryType must be either 'blob' or 'arraybuffer'");
+    }
+    if (this._binaryType === 'blob' || binaryType === 'blob') {
+      invariant(
+        BlobManager.isAvailable,
+        'Native module BlobModule is required for blob support',
+      );
+      if (binaryType === 'blob') {
+        BlobManager.addWebSocketHandler(this._socketId);
+      } else {
+        BlobManager.removeWebSocketHandler(this._socketId);
+      }
+    }
+    this._binaryType = binaryType;
+  }
+
+  close(code?: number, reason?: string): void {
+    if (this.readyState === this.CLOSING || this.readyState === this.CLOSED) {
+      return;
+    }
+
+    this.readyState = this.CLOSING;
+    this._close(code, reason);
+  }
+
+  send(data: string | ArrayBuffer | ArrayBufferView | Blob): void {
+    if (this.readyState === this.CONNECTING) {
+      throw new Error('INVALID_STATE_ERR');
+    }
+
+    if (data instanceof Blob) {
+      invariant(
+        BlobManager.isAvailable,
+        'Native module BlobModule is required for blob support',
+      );
+      BlobManager.sendOverSocket(data, this._socketId);
+      return;
+    }
+
+    if (typeof data === 'string') {
+      NativeWebSocketModule.send(data, this._socketId);
+      return;
+    }
+
+    if (data instanceof ArrayBuffer || ArrayBuffer.isView(data)) {
+      NativeWebSocketModule.sendBinary(binaryToBase64(data), this._socketId);
+      return;
+    }
+
+    throw new Error('Unsupported data type');
+  }
+
+  ping(): void {
+    if (this.readyState === this.CONNECTING) {
+      throw new Error('INVALID_STATE_ERR');
+    }
+
+    NativeWebSocketModule.ping(this._socketId);
+  }
+
+  _close(code?: number, reason?: string): void {
+    // See https://developer.mozilla.org/en-US/docs/Web/API/CloseEvent
+    const statusCode = typeof code === 'number' ? code : CLOSE_NORMAL;
+    const closeReason = typeof reason === 'string' ? reason : '';
+    NativeWebSocketModule.close(statusCode, closeReason, this._socketId);
+
+    if (BlobManager.isAvailable && this._binaryType === 'blob') {
+      BlobManager.removeWebSocketHandler(this._socketId);
+    }
+  }
+
+  _unregisterEvents(): void {
+    this._subscriptions.forEach(e => e.remove());
+    this._subscriptions = [];
+  }
+
+  _registerEvents(): void {
+    this._subscriptions = [
+      this._eventEmitter.addListener('websocketMessage', ev => {
+        if (ev.id !== this._socketId) {
+          return;
+        }
+        let data: Blob | BlobData | ArrayBuffer | string = ev.data;
+        switch (ev.type) {
+          case 'binary':
+            data = base64.toByteArray(ev.data).buffer;
+            break;
+          case 'blob':
+            data = BlobManager.createFromOptions(ev.data);
+            break;
+        }
+        this.dispatchEvent(new WebSocketEvent('message', {data}));
+      }),
+      this._eventEmitter.addListener('websocketOpen', ev => {
+        if (ev.id !== this._socketId) {
+          return;
+        }
+        this.readyState = this.OPEN;
+        this.protocol = ev.protocol;
+        this.dispatchEvent(new WebSocketEvent('open'));
+      }),
+      this._eventEmitter.addListener('websocketClosed', ev => {
+        if (ev.id !== this._socketId) {
+          return;
+        }
+        this.readyState = this.CLOSED;
+        this.dispatchEvent(
+          new WebSocketEvent('close', {
+            code: ev.code,
+            reason: ev.reason,
+            // TODO: missing `wasClean` (exposed on iOS as `clean` but missing on Android)
+          }),
+        );
+        this._unregisterEvents();
+        this.close();
+      }),
+      this._eventEmitter.addListener('websocketFailed', ev => {
+        if (ev.id !== this._socketId) {
+          return;
+        }
+        this.readyState = this.CLOSED;
+        this.dispatchEvent(
+          new WebSocketEvent('error', {
+            message: ev.message,
+          }),
+        );
+        this.dispatchEvent(
+          new WebSocketEvent('close', {
+            code: CLOSE_ABNORMAL,
+            reason: ev.message,
+            // TODO: Expose `wasClean`
+          }),
+        );
+        this._unregisterEvents();
+        this.close();
+      }),
+    ];
+  }
+}
+
+module.exports = WebSocket;

smart-app-city/frontend/node_modules/react-native/Libraries/WebSocket/WebSocketEvent.js

@@ -0,0 +1,27 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ */
+
+'use strict';
+
+/**
+ * Event object passed to the `onopen`, `onclose`, `onmessage`, `onerror`
+ * callbacks of `WebSocket`.
+ *
+ * The `type` property is "open", "close", "message", "error" respectively.
+ *
+ * In case of "message", the `data` property contains the incoming data.
+ */
+class WebSocketEvent {
+  constructor(type, eventInitDict) {
+    this.type = type.toString();
+    Object.assign(this, eventInitDict);
+  }
+}
+
+module.exports = WebSocketEvent;

smart-app-city/frontend/node_modules/react-native/Libraries/WebSocket/WebSocketInterceptor.js

@@ -0,0 +1,229 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ */
+
+import NativeEventEmitter from '../EventEmitter/NativeEventEmitter';
+import Platform from '../Utilities/Platform';
+import NativeWebSocketModule from './NativeWebSocketModule';
+import base64 from 'base64-js';
+
+const originalRCTWebSocketConnect = NativeWebSocketModule.connect;
+const originalRCTWebSocketSend = NativeWebSocketModule.send;
+const originalRCTWebSocketSendBinary = NativeWebSocketModule.sendBinary;
+const originalRCTWebSocketClose = NativeWebSocketModule.close;
+
+let eventEmitter;
+let subscriptions;
+
+let closeCallback;
+let sendCallback;
+let connectCallback;
+let onOpenCallback;
+let onMessageCallback;
+let onErrorCallback;
+let onCloseCallback;
+
+let isInterceptorEnabled = false;
+
+/**
+ * A network interceptor which monkey-patches RCTWebSocketModule methods
+ * to gather all websocket network requests/responses, in order to show
+ * their information in the React Native inspector development tool.
+ */
+
+const WebSocketInterceptor = {
+  /**
+   * Invoked when RCTWebSocketModule.close(...) is called.
+   */
+  setCloseCallback(callback) {
+    closeCallback = callback;
+  },
+
+  /**
+   * Invoked when RCTWebSocketModule.send(...) or sendBinary(...) is called.
+   */
+  setSendCallback(callback) {
+    sendCallback = callback;
+  },
+
+  /**
+   * Invoked when RCTWebSocketModule.connect(...) is called.
+   */
+  setConnectCallback(callback) {
+    connectCallback = callback;
+  },
+
+  /**
+   * Invoked when event "websocketOpen" happens.
+   */
+  setOnOpenCallback(callback) {
+    onOpenCallback = callback;
+  },
+
+  /**
+   * Invoked when event "websocketMessage" happens.
+   */
+  setOnMessageCallback(callback) {
+    onMessageCallback = callback;
+  },
+
+  /**
+   * Invoked when event "websocketFailed" happens.
+   */
+  setOnErrorCallback(callback) {
+    onErrorCallback = callback;
+  },
+
+  /**
+   * Invoked when event "websocketClosed" happens.
+   */
+  setOnCloseCallback(callback) {
+    onCloseCallback = callback;
+  },
+
+  isInterceptorEnabled() {
+    return isInterceptorEnabled;
+  },
+
+  _unregisterEvents() {
+    subscriptions.forEach(e => e.remove());
+    subscriptions = [];
+  },
+
+  /**
+   * Add listeners to the RCTWebSocketModule events to intercept them.
+   */
+  _registerEvents() {
+    subscriptions = [
+      eventEmitter.addListener('websocketMessage', ev => {
+        if (onMessageCallback) {
+          onMessageCallback(
+            ev.id,
+            ev.type === 'binary'
+              ? WebSocketInterceptor._arrayBufferToString(ev.data)
+              : ev.data,
+          );
+        }
+      }),
+      eventEmitter.addListener('websocketOpen', ev => {
+        if (onOpenCallback) {
+          onOpenCallback(ev.id);
+        }
+      }),
+      eventEmitter.addListener('websocketClosed', ev => {
+        if (onCloseCallback) {
+          onCloseCallback(ev.id, {code: ev.code, reason: ev.reason});
+        }
+      }),
+      eventEmitter.addListener('websocketFailed', ev => {
+        if (onErrorCallback) {
+          onErrorCallback(ev.id, {message: ev.message});
+        }
+      }),
+    ];
+  },
+
+  enableInterception() {
+    if (isInterceptorEnabled) {
+      return;
+    }
+    eventEmitter = new NativeEventEmitter(
+      // T88715063: NativeEventEmitter only used this parameter on iOS. Now it uses it on all platforms, so this code was modified automatically to preserve its behavior
+      // If you want to use the native module on other platforms, please remove this condition and test its behavior
+      Platform.OS !== 'ios' ? null : NativeWebSocketModule,
+    );
+    WebSocketInterceptor._registerEvents();
+
+    // Override `connect` method for all RCTWebSocketModule requests
+    // to intercept the request url, protocols, options and socketId,
+    // then pass them through the `connectCallback`.
+    NativeWebSocketModule.connect = function (
+      url,
+      protocols,
+      options,
+      socketId,
+    ) {
+      if (connectCallback) {
+        connectCallback(url, protocols, options, socketId);
+      }
+      originalRCTWebSocketConnect.apply(this, arguments);
+    };
+
+    // Override `send` method for all RCTWebSocketModule requests to intercept
+    // the data sent, then pass them through the `sendCallback`.
+    NativeWebSocketModule.send = function (data, socketId) {
+      if (sendCallback) {
+        sendCallback(data, socketId);
+      }
+      originalRCTWebSocketSend.apply(this, arguments);
+    };
+
+    // Override `sendBinary` method for all RCTWebSocketModule requests to
+    // intercept the data sent, then pass them through the `sendCallback`.
+    NativeWebSocketModule.sendBinary = function (data, socketId) {
+      if (sendCallback) {
+        sendCallback(WebSocketInterceptor._arrayBufferToString(data), socketId);
+      }
+      originalRCTWebSocketSendBinary.apply(this, arguments);
+    };
+
+    // Override `close` method for all RCTWebSocketModule requests to intercept
+    // the close information, then pass them through the `closeCallback`.
+    NativeWebSocketModule.close = function () {
+      if (closeCallback) {
+        if (arguments.length === 3) {
+          closeCallback(arguments[0], arguments[1], arguments[2]);
+        } else {
+          closeCallback(null, null, arguments[0]);
+        }
+      }
+      originalRCTWebSocketClose.apply(this, arguments);
+    };
+
+    isInterceptorEnabled = true;
+  },
+
+  _arrayBufferToString(data) {
+    const value = base64.toByteArray(data).buffer;
+    if (value === undefined || value === null) {
+      return '(no value)';
+    }
+    if (
+      typeof ArrayBuffer !== 'undefined' &&
+      typeof Uint8Array !== 'undefined' &&
+      value instanceof ArrayBuffer
+    ) {
+      return `ArrayBuffer {${String(Array.from(new Uint8Array(value)))}}`;
+    }
+    return value;
+  },
+
+  // Unpatch RCTWebSocketModule methods and remove the callbacks.
+  disableInterception() {
+    if (!isInterceptorEnabled) {
+      return;
+    }
+    isInterceptorEnabled = false;
+    NativeWebSocketModule.send = originalRCTWebSocketSend;
+    NativeWebSocketModule.sendBinary = originalRCTWebSocketSendBinary;
+    NativeWebSocketModule.close = originalRCTWebSocketClose;
+    NativeWebSocketModule.connect = originalRCTWebSocketConnect;
+
+    connectCallback = null;
+    closeCallback = null;
+    sendCallback = null;
+    onOpenCallback = null;
+    onMessageCallback = null;
+    onCloseCallback = null;
+    onErrorCallback = null;
+
+    WebSocketInterceptor._unregisterEvents();
+  },
+};
+
+module.exports = WebSocketInterceptor;

smart-app-city/frontend/node_modules/react-native/Libraries/WebSocket/__mocks__/event-target-shim.js

@@ -0,0 +1,27 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ */
+
+// Jest fatals for the following statement (minimal repro case)
+//
+//   exports.something = Symbol;
+//
+// Until it is fixed, mocking the entire node module makes the
+// problem go away.
+
+'use strict';
+
+function EventTarget() {
+  // Support both EventTarget and EventTarget(...)
+  // as a super class, just like the original module does.
+  if (arguments.length > 0) {
+    return EventTarget;
+  }
+}
+
+module.exports = EventTarget;