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/prompts/dist/dateparts/datepart.js

@@ -0,0 +1,39 @@
+'use strict';
+
+class DatePart {
+  constructor({
+    token,
+    date,
+    parts,
+    locales
+  }) {
+    this.token = token;
+    this.date = date || new Date();
+    this.parts = parts || [this];
+    this.locales = locales || {};
+  }
+
+  up() {}
+
+  down() {}
+
+  next() {
+    const currentIdx = this.parts.indexOf(this);
+    return this.parts.find((part, idx) => idx > currentIdx && part instanceof DatePart);
+  }
+
+  setTo(val) {}
+
+  prev() {
+    let parts = [].concat(this.parts).reverse();
+    const currentIdx = parts.indexOf(this);
+    return parts.find((part, idx) => idx > currentIdx && part instanceof DatePart);
+  }
+
+  toString() {
+    return String(this.date);
+  }
+
+}
+
+module.exports = DatePart;

smart-app-city/frontend/node_modules/prompts/dist/dateparts/day.js

@@ -0,0 +1,35 @@
+'use strict';
+
+const DatePart = require('./datepart');
+
+const pos = n => {
+  n = n % 10;
+  return n === 1 ? 'st' : n === 2 ? 'nd' : n === 3 ? 'rd' : 'th';
+};
+
+class Day extends DatePart {
+  constructor(opts = {}) {
+    super(opts);
+  }
+
+  up() {
+    this.date.setDate(this.date.getDate() + 1);
+  }
+
+  down() {
+    this.date.setDate(this.date.getDate() - 1);
+  }
+
+  setTo(val) {
+    this.date.setDate(parseInt(val.substr(-2)));
+  }
+
+  toString() {
+    let date = this.date.getDate();
+    let day = this.date.getDay();
+    return this.token === 'DD' ? String(date).padStart(2, '0') : this.token === 'Do' ? date + pos(date) : this.token === 'd' ? day + 1 : this.token === 'ddd' ? this.locales.weekdaysShort[day] : this.token === 'dddd' ? this.locales.weekdays[day] : date;
+  }
+
+}
+
+module.exports = Day;

smart-app-city/frontend/node_modules/prompts/dist/dateparts/hours.js

@@ -0,0 +1,30 @@
+'use strict';
+
+const DatePart = require('./datepart');
+
+class Hours extends DatePart {
+  constructor(opts = {}) {
+    super(opts);
+  }
+
+  up() {
+    this.date.setHours(this.date.getHours() + 1);
+  }
+
+  down() {
+    this.date.setHours(this.date.getHours() - 1);
+  }
+
+  setTo(val) {
+    this.date.setHours(parseInt(val.substr(-2)));
+  }
+
+  toString() {
+    let hours = this.date.getHours();
+    if (/h/.test(this.token)) hours = hours % 12 || 12;
+    return this.token.length > 1 ? String(hours).padStart(2, '0') : hours;
+  }
+
+}
+
+module.exports = Hours;

smart-app-city/frontend/node_modules/prompts/dist/dateparts/index.js

@@ -0,0 +1,13 @@
+'use strict';
+
+module.exports = {
+  DatePart: require('./datepart'),
+  Meridiem: require('./meridiem'),
+  Day: require('./day'),
+  Hours: require('./hours'),
+  Milliseconds: require('./milliseconds'),
+  Minutes: require('./minutes'),
+  Month: require('./month'),
+  Seconds: require('./seconds'),
+  Year: require('./year')
+};

smart-app-city/frontend/node_modules/prompts/dist/dateparts/meridiem.js

@@ -0,0 +1,25 @@
+'use strict';
+
+const DatePart = require('./datepart');
+
+class Meridiem extends DatePart {
+  constructor(opts = {}) {
+    super(opts);
+  }
+
+  up() {
+    this.date.setHours((this.date.getHours() + 12) % 24);
+  }
+
+  down() {
+    this.up();
+  }
+
+  toString() {
+    let meridiem = this.date.getHours() > 12 ? 'pm' : 'am';
+    return /\A/.test(this.token) ? meridiem.toUpperCase() : meridiem;
+  }
+
+}
+
+module.exports = Meridiem;

smart-app-city/frontend/node_modules/prompts/dist/dateparts/milliseconds.js

@@ -0,0 +1,28 @@
+'use strict';
+
+const DatePart = require('./datepart');
+
+class Milliseconds extends DatePart {
+  constructor(opts = {}) {
+    super(opts);
+  }
+
+  up() {
+    this.date.setMilliseconds(this.date.getMilliseconds() + 1);
+  }
+
+  down() {
+    this.date.setMilliseconds(this.date.getMilliseconds() - 1);
+  }
+
+  setTo(val) {
+    this.date.setMilliseconds(parseInt(val.substr(-this.token.length)));
+  }
+
+  toString() {
+    return String(this.date.getMilliseconds()).padStart(4, '0').substr(0, this.token.length);
+  }
+
+}
+
+module.exports = Milliseconds;

smart-app-city/frontend/node_modules/prompts/dist/dateparts/minutes.js

@@ -0,0 +1,29 @@
+'use strict';
+
+const DatePart = require('./datepart');
+
+class Minutes extends DatePart {
+  constructor(opts = {}) {
+    super(opts);
+  }
+
+  up() {
+    this.date.setMinutes(this.date.getMinutes() + 1);
+  }
+
+  down() {
+    this.date.setMinutes(this.date.getMinutes() - 1);
+  }
+
+  setTo(val) {
+    this.date.setMinutes(parseInt(val.substr(-2)));
+  }
+
+  toString() {
+    let m = this.date.getMinutes();
+    return this.token.length > 1 ? String(m).padStart(2, '0') : m;
+  }
+
+}
+
+module.exports = Minutes;

smart-app-city/frontend/node_modules/prompts/dist/dateparts/month.js

@@ -0,0 +1,31 @@
+'use strict';
+
+const DatePart = require('./datepart');
+
+class Month extends DatePart {
+  constructor(opts = {}) {
+    super(opts);
+  }
+
+  up() {
+    this.date.setMonth(this.date.getMonth() + 1);
+  }
+
+  down() {
+    this.date.setMonth(this.date.getMonth() - 1);
+  }
+
+  setTo(val) {
+    val = parseInt(val.substr(-2)) - 1;
+    this.date.setMonth(val < 0 ? 0 : val);
+  }
+
+  toString() {
+    let month = this.date.getMonth();
+    let tl = this.token.length;
+    return tl === 2 ? String(month + 1).padStart(2, '0') : tl === 3 ? this.locales.monthsShort[month] : tl === 4 ? this.locales.months[month] : String(month + 1);
+  }
+
+}
+
+module.exports = Month;

smart-app-city/frontend/node_modules/prompts/dist/dateparts/seconds.js

@@ -0,0 +1,29 @@
+'use strict';
+
+const DatePart = require('./datepart');
+
+class Seconds extends DatePart {
+  constructor(opts = {}) {
+    super(opts);
+  }
+
+  up() {
+    this.date.setSeconds(this.date.getSeconds() + 1);
+  }
+
+  down() {
+    this.date.setSeconds(this.date.getSeconds() - 1);
+  }
+
+  setTo(val) {
+    this.date.setSeconds(parseInt(val.substr(-2)));
+  }
+
+  toString() {
+    let s = this.date.getSeconds();
+    return this.token.length > 1 ? String(s).padStart(2, '0') : s;
+  }
+
+}
+
+module.exports = Seconds;

smart-app-city/frontend/node_modules/prompts/dist/dateparts/year.js

@@ -0,0 +1,29 @@
+'use strict';
+
+const DatePart = require('./datepart');
+
+class Year extends DatePart {
+  constructor(opts = {}) {
+    super(opts);
+  }
+
+  up() {
+    this.date.setFullYear(this.date.getFullYear() + 1);
+  }
+
+  down() {
+    this.date.setFullYear(this.date.getFullYear() - 1);
+  }
+
+  setTo(val) {
+    this.date.setFullYear(val.substr(-4));
+  }
+
+  toString() {
+    let year = String(this.date.getFullYear()).padStart(4, '0');
+    return this.token.length === 2 ? year.substr(-2) : year;
+  }
+
+}
+
+module.exports = Year;