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/@babel/plugin-transform-runtime/src/get-runtime-path/browser.ts

@@ -0,0 +1,15 @@
+export default function (
+  moduleName: string,
+  dirname: string,
+  absoluteRuntime: string | boolean,
+) {
+  if (absoluteRuntime === false) return moduleName;
+
+  resolveFSPath();
+}
+
+export function resolveFSPath() {
+  throw new Error(
+    "The 'absoluteRuntime' option is not supported when using @babel/standalone.",
+  );
+}

smart-app-city/frontend/node_modules/@babel/plugin-transform-runtime/src/get-runtime-path/index.ts

@@ -0,0 +1,42 @@
+import path from "node:path";
+
+import { createRequire } from "node:module";
+const require = createRequire(import.meta.url);
+
+export default function (
+  moduleName: string,
+  dirname: string,
+  absoluteRuntime: string | boolean,
+) {
+  if (absoluteRuntime === false) return moduleName;
+
+  return resolveAbsoluteRuntime(
+    moduleName,
+    path.resolve(dirname, absoluteRuntime === true ? "." : absoluteRuntime),
+  );
+}
+
+function resolveAbsoluteRuntime(moduleName: string, dirname: string) {
+  try {
+    return path
+      .dirname(
+        require.resolve(`${moduleName}/package.json`, { paths: [dirname] }),
+      )
+      .replace(/\\/g, "/");
+  } catch (err) {
+    if (err.code !== "MODULE_NOT_FOUND") throw err;
+
+    throw Object.assign(
+      new Error(`Failed to resolve "${moduleName}" relative to "${dirname}"`),
+      {
+        code: "BABEL_RUNTIME_NOT_FOUND",
+        runtime: moduleName,
+        dirname,
+      },
+    );
+  }
+}
+
+export function resolveFSPath(path: string) {
+  return require.resolve(path).replace(/\\/g, "/");
+}