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-navigation/elements/lib/commonjs/Screen.js

@@ -0,0 +1,76 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = Screen;
+var _native = require("@react-navigation/native");
+var React = _interopRequireWildcard(require("react"));
+var _reactNative = require("react-native");
+var _reactNativeSafeAreaContext = require("react-native-safe-area-context");
+var _Background = _interopRequireDefault(require("./Background"));
+var _getDefaultHeaderHeight = _interopRequireDefault(require("./Header/getDefaultHeaderHeight"));
+var _HeaderHeightContext = _interopRequireDefault(require("./Header/HeaderHeightContext"));
+var _HeaderShownContext = _interopRequireDefault(require("./Header/HeaderShownContext"));
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function (nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }
+function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
+function Screen(props) {
+  const dimensions = (0, _reactNativeSafeAreaContext.useSafeAreaFrame)();
+  const insets = (0, _reactNativeSafeAreaContext.useSafeAreaInsets)();
+  const isParentHeaderShown = React.useContext(_HeaderShownContext.default);
+  const parentHeaderHeight = React.useContext(_HeaderHeightContext.default);
+  const {
+    focused,
+    modal = false,
+    header,
+    headerShown = true,
+    headerTransparent,
+    headerStatusBarHeight = isParentHeaderShown ? 0 : insets.top,
+    navigation,
+    route,
+    children,
+    style
+  } = props;
+  const [headerHeight, setHeaderHeight] = React.useState(() => (0, _getDefaultHeaderHeight.default)(dimensions, modal, headerStatusBarHeight));
+  return /*#__PURE__*/React.createElement(_Background.default, {
+    accessibilityElementsHidden: !focused,
+    importantForAccessibility: focused ? 'auto' : 'no-hide-descendants',
+    style: [styles.container, style]
+  }, /*#__PURE__*/React.createElement(_reactNative.View, {
+    style: styles.content
+  }, /*#__PURE__*/React.createElement(_HeaderShownContext.default.Provider, {
+    value: isParentHeaderShown || headerShown !== false
+  }, /*#__PURE__*/React.createElement(_HeaderHeightContext.default.Provider, {
+    value: headerShown ? headerHeight : parentHeaderHeight ?? 0
+  }, children))), headerShown ? /*#__PURE__*/React.createElement(_native.NavigationContext.Provider, {
+    value: navigation
+  }, /*#__PURE__*/React.createElement(_native.NavigationRouteContext.Provider, {
+    value: route
+  }, /*#__PURE__*/React.createElement(_reactNative.View, {
+    onLayout: e => {
+      const {
+        height
+      } = e.nativeEvent.layout;
+      setHeaderHeight(height);
+    },
+    style: headerTransparent ? styles.absolute : null
+  }, header))) : null);
+}
+const styles = _reactNative.StyleSheet.create({
+  container: {
+    flex: 1,
+    flexDirection: 'column-reverse'
+  },
+  // This is necessary to avoid applying 'column-reverse' to screen content
+  content: {
+    flex: 1
+  },
+  absolute: {
+    position: 'absolute',
+    top: 0,
+    left: 0,
+    right: 0
+  }
+});
+//# sourceMappingURL=Screen.js.map