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/unicode-match-property-value-ecmascript/README.md

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+# unicode-match-property-value-ecmascript [![unicode-match-property-value-ecmascript on npm](https://img.shields.io/npm/v/unicode-match-property-value-ecmascript)](https://www.npmjs.com/package/unicode-match-property-value-ecmascript)
+
+_unicode-match-property-value-ecmascript_ matches a given Unicode property value or [property value alias](https://github.com/mathiasbynens/unicode-property-value-aliases) to its canonical property value without applying [loose matching](https://github.com/mathiasbynens/unicode-loose-match), per the algorithm used for [RegExp Unicode property escapes in ECMAScript](https://github.com/tc39/proposal-regexp-unicode-property-escapes). Consider it a strict alternative to loose matching.
+
+## Installation
+
+To use _unicode-match-property-value-ecmascript_ programmatically, install it as a dependency via [npm](https://www.npmjs.com/):
+
+```bash
+$ npm install unicode-match-property-value-ecmascript
+```
+
+Then, `require` it:
+
+```js
+const matchPropertyValue = require('unicode-match-property-value-ecmascript');
+```
+
+## API
+
+This module exports a single function named `matchPropertyValue`.
+
+### `matchPropertyValue(property, value)`
+
+This function takes a string `property` that is a canonical/unaliased Unicode property name, and a string `value`. It attemps to  match `value` to a canonical Unicode property value for the given property. If there’s a match, it returns the canonical property value. Otherwise, it throws an exception.
+
+```js
+// Find the canonical property value:
+matchPropertyValue('Script_Extensions', 'Aghb')
+// → 'Caucasian_Albanian'
+
+matchPropertyValue('Script_Extensions', 'Caucasian_Albanian')
+// → 'Caucasian_Albanian'
+
+matchPropertyValue('script_extensions', 'Caucasian_Albanian') // Note: incorrect casing.
+// → throws
+
+matchPropertyValue('Script_Extensions', 'caucasian_albanian') // Note: incorrect casing.
+// → throws
+```
+
+## For maintainers
+
+### How to publish a new release
+
+1. On the `main` branch, bump the version number in `package.json`:
+
+    ```sh
+    npm version patch -m 'Release v%s'
+    ```
+
+    Instead of `patch`, use `minor` or `major` [as needed](https://semver.org/).
+
+    Note that this produces a Git commit + tag.
+
+1. Push the release commit and tag:
+
+    ```sh
+    git push && git push --tags
+    ```
+
+    Our CI then automatically publishes the new release to npm.
+
+## Author
+
+| [![twitter/mathias](https://gravatar.com/avatar/24e08a9ea84deb17ae121074d0f17125?s=70)](https://twitter.com/mathias "Follow @mathias on Twitter") |
+|---|
+| [Mathias Bynens](https://mathiasbynens.be/) |
+
+## License
+
+_unicode-match-property-value-ecmascript_ is available under the [MIT](https://mths.be/mit) license.