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/es-abstract/2025/GetViewByteLength.js

@@ -0,0 +1,47 @@
+'use strict';
+
+var $TypeError = require('es-errors/type');
+
+var IsFixedLengthArrayBuffer = require('./IsFixedLengthArrayBuffer');
+var IsViewOutOfBounds = require('./IsViewOutOfBounds');
+
+var isDataViewWithBufferWitnessRecord = require('../helpers/records/data-view-with-buffer-witness-record');
+
+var dataViewBuffer = require('data-view-buffer');
+var dataViewByteLength = require('data-view-byte-length');
+var dataViewByteOffset = require('data-view-byte-offset');
+
+// https://262.ecma-international.org/15.0/#sec-getviewbytelength
+
+module.exports = function GetViewByteLength(viewRecord) {
+	if (!isDataViewWithBufferWitnessRecord(viewRecord)) {
+		throw new $TypeError('Assertion failed: `viewRecord` must be a DataView with Buffer Witness Record');
+	}
+
+	if (IsViewOutOfBounds(viewRecord)) {
+		throw new $TypeError('Assertion failed: `viewRecord` is out of bounds'); // step 1
+	}
+
+	var view = viewRecord['[[Object]]']; // step 2
+
+	var isFixed = IsFixedLengthArrayBuffer(dataViewBuffer(view));
+
+	var viewByteLength = isFixed ? dataViewByteLength(view) : 'AUTO'; // view.[[ByteLength]]
+	if (viewByteLength !== 'AUTO') {
+		return viewByteLength; // step 3
+	}
+
+	if (isFixed) {
+		throw new $TypeError('Assertion failed: DataView’s ArrayBuffer is not fixed length'); // step 4
+	}
+
+	var byteOffset = dataViewByteOffset(view); // step 5
+
+	var byteLength = viewRecord['[[CachedBufferByteLength]]']; // step 6
+
+	if (byteLength === 'DETACHED') {
+		throw new $TypeError('Assertion failed: DataView’s ArrayBuffer is detached'); // step 7
+	}
+
+	return byteLength - byteOffset; // step 8
+};