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/Text/TextNativeComponent.js

@@ -0,0 +1,81 @@
+/**
+ * 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
+ * @format
+ */
+
+import {createViewConfig} from '../NativeComponent/ViewConfig';
+import UIManager from '../ReactNative/UIManager';
+import createReactNativeComponentClass from '../Renderer/shims/createReactNativeComponentClass';
+import {type HostComponent} from '../Renderer/shims/ReactNativeTypes';
+import {type ProcessedColorValue} from '../StyleSheet/processColor';
+import {type PressEvent} from '../Types/CoreEventTypes';
+import {type TextProps} from './TextProps';
+
+type NativeTextProps = $ReadOnly<{
+  ...TextProps,
+  isHighlighted?: ?boolean,
+  selectionColor?: ?ProcessedColorValue,
+  onClick?: ?(event: PressEvent) => mixed,
+  // This is only needed for platforms that optimize text hit testing, e.g.,
+  // react-native-windows. It can be used to only hit test virtual text spans
+  // that have pressable events attached to them.
+  isPressable?: ?boolean,
+}>;
+
+const textViewConfig = {
+  validAttributes: {
+    isHighlighted: true,
+    isPressable: true,
+    numberOfLines: true,
+    ellipsizeMode: true,
+    allowFontScaling: true,
+    dynamicTypeRamp: true,
+    maxFontSizeMultiplier: true,
+    disabled: true,
+    selectable: true,
+    selectionColor: true,
+    adjustsFontSizeToFit: true,
+    minimumFontScale: true,
+    textBreakStrategy: true,
+    onTextLayout: true,
+    onInlineViewLayout: true,
+    dataDetectorType: true,
+    android_hyphenationFrequency: true,
+    lineBreakStrategyIOS: true,
+  },
+  directEventTypes: {
+    topTextLayout: {
+      registrationName: 'onTextLayout',
+    },
+    topInlineViewLayout: {
+      registrationName: 'onInlineViewLayout',
+    },
+  },
+  uiViewClassName: 'RCTText',
+};
+
+const virtualTextViewConfig = {
+  validAttributes: {
+    isHighlighted: true,
+    isPressable: true,
+    maxFontSizeMultiplier: true,
+  },
+  uiViewClassName: 'RCTVirtualText',
+};
+
+export const NativeText: HostComponent<NativeTextProps> =
+  (createReactNativeComponentClass('RCTText', () =>
+    createViewConfig(textViewConfig),
+  ): any);
+
+export const NativeVirtualText: HostComponent<NativeTextProps> =
+  !global.RN$Bridgeless && !UIManager.hasViewManagerConfig('RCTVirtualText')
+    ? NativeText
+    : (createReactNativeComponentClass('RCTVirtualText', () =>
+        createViewConfig(virtualTextViewConfig),
+      ): any);