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/jest-worker/build/base/BaseWorkerPool.js

@@ -0,0 +1,156 @@
+'use strict';
+
+Object.defineProperty(exports, '__esModule', {
+  value: true
+});
+exports.default = void 0;
+function _mergeStream() {
+  const data = _interopRequireDefault(require('merge-stream'));
+  _mergeStream = function () {
+    return data;
+  };
+  return data;
+}
+var _types = require('../types');
+function _interopRequireDefault(obj) {
+  return obj && obj.__esModule ? obj : {default: obj};
+}
+/**
+ * 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.
+ */
+
+// How long to wait for the child process to terminate
+// after CHILD_MESSAGE_END before sending force exiting.
+const FORCE_EXIT_DELAY = 500;
+
+/* istanbul ignore next */
+// eslint-disable-next-line @typescript-eslint/no-empty-function
+const emptyMethod = () => {};
+class BaseWorkerPool {
+  _stderr;
+  _stdout;
+  _options;
+  _workers;
+  _workerPath;
+  constructor(workerPath, options) {
+    this._options = options;
+    this._workerPath = workerPath;
+    this._workers = new Array(options.numWorkers);
+    const stdout = (0, _mergeStream().default)();
+    const stderr = (0, _mergeStream().default)();
+    const {forkOptions, maxRetries, resourceLimits, setupArgs} = options;
+    for (let i = 0; i < options.numWorkers; i++) {
+      const workerOptions = {
+        forkOptions,
+        idleMemoryLimit: this._options.idleMemoryLimit,
+        maxRetries,
+        resourceLimits,
+        setupArgs,
+        workerId: i,
+        workerPath
+      };
+      const worker = this.createWorker(workerOptions);
+      const workerStdout = worker.getStdout();
+      const workerStderr = worker.getStderr();
+      if (workerStdout) {
+        stdout.add(workerStdout);
+      }
+      if (workerStderr) {
+        stderr.add(workerStderr);
+      }
+      this._workers[i] = worker;
+    }
+    this._stdout = stdout;
+    this._stderr = stderr;
+  }
+  getStderr() {
+    return this._stderr;
+  }
+  getStdout() {
+    return this._stdout;
+  }
+  getWorkers() {
+    return this._workers;
+  }
+  getWorkerById(workerId) {
+    return this._workers[workerId];
+  }
+  restartWorkerIfShutDown(workerId) {
+    if (this._workers[workerId].state === _types.WorkerStates.SHUT_DOWN) {
+      const {forkOptions, maxRetries, resourceLimits, setupArgs} =
+        this._options;
+      const workerOptions = {
+        forkOptions,
+        idleMemoryLimit: this._options.idleMemoryLimit,
+        maxRetries,
+        resourceLimits,
+        setupArgs,
+        workerId,
+        workerPath: this._workerPath
+      };
+      const worker = this.createWorker(workerOptions);
+      this._workers[workerId] = worker;
+    }
+  }
+  createWorker(_workerOptions) {
+    throw Error('Missing method createWorker in WorkerPool');
+  }
+  async start() {
+    await Promise.all(
+      this._workers.map(async worker => {
+        await worker.waitForWorkerReady();
+        await new Promise((resolve, reject) => {
+          worker.send(
+            [_types.CHILD_MESSAGE_CALL_SETUP],
+            emptyMethod,
+            error => {
+              if (error) {
+                reject(error);
+              } else {
+                resolve();
+              }
+            },
+            emptyMethod
+          );
+        });
+      })
+    );
+  }
+  async end() {
+    // We do not cache the request object here. If so, it would only be only
+    // processed by one of the workers, and we want them all to close.
+    const workerExitPromises = this._workers.map(async worker => {
+      worker.send(
+        [_types.CHILD_MESSAGE_END, false],
+        emptyMethod,
+        emptyMethod,
+        emptyMethod
+      );
+
+      // Schedule a force exit in case worker fails to exit gracefully so
+      // await worker.waitForExit() never takes longer than FORCE_EXIT_DELAY
+      let forceExited = false;
+      const forceExitTimeout = setTimeout(() => {
+        worker.forceExit();
+        forceExited = true;
+      }, FORCE_EXIT_DELAY);
+      await worker.waitForExit();
+      // Worker ideally exited gracefully, don't send force exit then
+      clearTimeout(forceExitTimeout);
+      return forceExited;
+    });
+    const workerExits = await Promise.all(workerExitPromises);
+    return workerExits.reduce(
+      (result, forceExited) => ({
+        forceExited: result.forceExited || forceExited
+      }),
+      {
+        forceExited: false
+      }
+    );
+  }
+}
+exports.default = BaseWorkerPool;