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/strict-uri-encode/index.js

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+'use strict';
+module.exports = str => encodeURIComponent(str).replace(/[!'()*]/g, x => `%${x.charCodeAt(0).toString(16).toUpperCase()}`);

smart-app-city/frontend/node_modules/strict-uri-encode/license

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+The MIT License (MIT)
+
+Copyright (c) Kevin Martensson <kevinmartensson@gmail.com> (github.com/kevva)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

smart-app-city/frontend/node_modules/strict-uri-encode/package.json

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+{
+  "name": "strict-uri-encode",
+  "version": "2.0.0",
+  "description": "A stricter URI encode adhering to RFC 3986",
+  "license": "MIT",
+  "repository": "kevva/strict-uri-encode",
+  "author": {
+    "name": "Kevin Mårtensson",
+    "email": "kevinmartensson@gmail.com",
+    "url": "github.com/kevva"
+  },
+  "engines": {
+    "node": ">=4"
+  },
+  "scripts": {
+    "test": "xo && ava"
+  },
+  "files": [
+    "index.js"
+  ],
+  "keywords": [
+    "component",
+    "encode",
+    "RFC3986",
+    "uri"
+  ],
+  "devDependencies": {
+    "ava": "*",
+    "xo": "*"
+  }
+}

smart-app-city/frontend/node_modules/strict-uri-encode/readme.md

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+# strict-uri-encode [![Build Status](https://travis-ci.org/kevva/strict-uri-encode.svg?branch=master)](https://travis-ci.org/kevva/strict-uri-encode)
+
+> A stricter URI encode adhering to [RFC 3986](http://tools.ietf.org/html/rfc3986)
+
+
+## Install
+
+```
+$ npm install --save strict-uri-encode
+```
+
+
+## Usage
+
+```js
+const strictUriEncode = require('strict-uri-encode');
+
+strictUriEncode('unicorn!foobar');
+//=> 'unicorn%21foobar'
+
+strictUriEncode('unicorn*foobar');
+//=> 'unicorn%2Afoobar'
+```
+
+
+## API
+
+### strictUriEncode(string)
+
+#### string
+
+Type: `string`, `number`
+
+String to URI encode.
+
+
+## License
+
+MIT © [Kevin Mårtensson](http://github.com/kevva)