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/react-native-reanimated/Common/cpp/hidden_headers/Logger.h

@@ -0,0 +1,24 @@
+#pragma once
+
+#include <memory>
+#include <stdexcept>
+
+#include "./LoggerInterface.h"
+
+namespace reanimated {
+
+class Logger {
+ public:
+  template <typename T>
+  static void log(T value) {
+    if (instance == nullptr) {
+      throw std::runtime_error("[Reanimated] No logger specified.");
+    }
+    instance->log(value);
+  }
+
+ private:
+  static std::unique_ptr<LoggerInterface> instance;
+};
+
+} // namespace reanimated

smart-app-city/frontend/node_modules/react-native-reanimated/Common/cpp/hidden_headers/LoggerInterface.h

@@ -0,0 +1,17 @@
+#pragma once
+
+#include <string>
+
+namespace reanimated {
+
+class LoggerInterface {
+ public:
+  virtual void log(const char *str) = 0;
+  virtual void log(const std::string &str) = 0;
+  virtual void log(double d) = 0;
+  virtual void log(int i) = 0;
+  virtual void log(bool b) = 0;
+  virtual ~LoggerInterface() = default;
+};
+
+} // namespace reanimated

smart-app-city/frontend/node_modules/react-native-reanimated/Common/cpp/hidden_headers/SpeedChecker.h

@@ -0,0 +1,29 @@
+#pragma once
+
+#define CHECK_SPEED 1
+
+#include <chrono>
+#include <functional>
+#include <memory>
+#include <string>
+#include "./Logger.h"
+
+namespace reanimated {
+
+class SpeedChecker {
+ public:
+  static void checkSpeed(std::string tag, std::function<void()> fun) {
+#if CHECK_SPEED
+    auto start = std::chrono::system_clock::now();
+#endif
+    fun();
+#if CHECK_SPEED
+    auto end = std::chrono::system_clock::now();
+    std::chrono::duration<double> elapsed_seconds = end - start;
+    tag += " " + std::to_string(elapsed_seconds.count()) + "s";
+    Logger::log(tag.c_str());
+#endif
+  }
+};
+
+} // namespace reanimated