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/regjsgen/README.md

@@ -0,0 +1,41 @@
+# regjsgen [![Build status][ci-img]][ci] [![Code coverage status][codecov-img]][codecov]
+
+Generate regular expressions from [regjsparser][regjsparser]’s AST.
+
+## Installation
+
+```sh
+npm i regjsgen
+```
+
+## API
+
+### `regjsgen.generate(ast)`
+
+This function accepts an abstract syntax tree representing a regular expression (see [regjsparser][regjsparser]), and returns the generated regular expression string.
+
+```js
+const regjsparser = require('regjsparser');
+const regjsgen = require('regjsgen');
+
+// Generate an AST with `regjsparser`.
+let ast = regjsparser.parse(regex);
+
+// Modify AST
+// …
+
+// Generate `RegExp` string with `regjsgen`.
+let regex = regjsgen.generate(ast);
+```
+
+## Support
+
+Tested on Node.js 16 and 18.<br>
+Compatible with regjsparser v0.10.0’s AST.
+
+
+[ci]: https://github.com/bnjmnt4n/regjsgen/actions
+[ci-img]: https://github.com/bnjmnt4n/regjsgen/workflows/Node.js%20CI/badge.svg
+[codecov]: https://codecov.io/gh/bnjmnt4n/regjsgen
+[codecov-img]: https://codecov.io/gh/bnjmnt4n/regjsgen/branch/main/graph/badge.svg
+[regjsparser]: https://github.com/jviereck/regjsparser