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/Libraries/AppDelegate/RCTRootViewFactory.mm

@@ -0,0 +1,268 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#import "RCTRootViewFactory.h"
+#import <React/RCTCxxBridgeDelegate.h>
+#import <React/RCTLog.h>
+#import <React/RCTRootView.h>
+#import <React/RCTSurfacePresenterBridgeAdapter.h>
+#import <React/RCTUtils.h>
+#import <react/renderer/runtimescheduler/RuntimeScheduler.h>
+#import "RCTAppDelegate.h"
+#import "RCTAppSetupUtils.h"
+
+#if RN_DISABLE_OSS_PLUGIN_HEADER
+#import <RCTTurboModulePlugin/RCTTurboModulePlugin.h>
+#else
+#import <React/CoreModulesPlugins.h>
+#endif
+#import <React/RCTBundleURLProvider.h>
+#import <React/RCTComponentViewFactory.h>
+#import <React/RCTComponentViewProtocol.h>
+#import <React/RCTFabricSurface.h>
+#import <React/RCTSurfaceHostingProxyRootView.h>
+#import <React/RCTSurfacePresenter.h>
+#import <ReactCommon/RCTContextContainerHandling.h>
+#if USE_HERMES
+#import <ReactCommon/RCTHermesInstance.h>
+#else
+#import <ReactCommon/RCTJscInstance.h>
+#endif
+#import <ReactCommon/RCTHost+Internal.h>
+#import <ReactCommon/RCTHost.h>
+#import <ReactCommon/RCTTurboModuleManager.h>
+#import <react/config/ReactNativeConfig.h>
+#import <react/renderer/runtimescheduler/RuntimeScheduler.h>
+#import <react/renderer/runtimescheduler/RuntimeSchedulerCallInvoker.h>
+#import <react/runtime/JSRuntimeFactory.h>
+
+static NSString *const kRNConcurrentRoot = @"concurrentRoot";
+
+static NSDictionary *updateInitialProps(NSDictionary *initialProps, BOOL isFabricEnabled)
+{
+  NSMutableDictionary *mutableProps = initialProps != NULL ? [initialProps mutableCopy] : [NSMutableDictionary new];
+  // Hardcoding the Concurrent Root as it it not recommended to
+  // have the concurrentRoot turned off when Fabric is enabled.
+  mutableProps[kRNConcurrentRoot] = @(isFabricEnabled);
+  return mutableProps;
+}
+
+@implementation RCTRootViewFactoryConfiguration
+
+- (instancetype)initWithBundleURL:(NSURL *)bundleURL
+                   newArchEnabled:(BOOL)newArchEnabled
+               turboModuleEnabled:(BOOL)turboModuleEnabled
+                bridgelessEnabled:(BOOL)bridgelessEnabled
+{
+  return [self
+      initWithBundleURLBlock:^{
+        return bundleURL;
+      }
+              newArchEnabled:newArchEnabled
+          turboModuleEnabled:turboModuleEnabled
+           bridgelessEnabled:bridgelessEnabled];
+}
+
+- (instancetype)initWithBundleURLBlock:(RCTBundleURLBlock)bundleURLBlock
+                        newArchEnabled:(BOOL)newArchEnabled
+                    turboModuleEnabled:(BOOL)turboModuleEnabled
+                     bridgelessEnabled:(BOOL)bridgelessEnabled
+{
+  if (self = [super init]) {
+    _bundleURLBlock = bundleURLBlock;
+    _fabricEnabled = newArchEnabled;
+    _turboModuleEnabled = turboModuleEnabled;
+    _bridgelessEnabled = bridgelessEnabled;
+  }
+  return self;
+}
+
+@end
+
+@interface RCTRootViewFactory () <RCTContextContainerHandling> {
+  std::shared_ptr<const facebook::react::ReactNativeConfig> _reactNativeConfig;
+  facebook::react::ContextContainer::Shared _contextContainer;
+}
+@end
+
+@interface RCTRootViewFactory () <RCTCxxBridgeDelegate> {
+  std::shared_ptr<facebook::react::RuntimeScheduler> _runtimeScheduler;
+}
+@end
+
+@implementation RCTRootViewFactory {
+  RCTHost *_reactHost;
+  RCTRootViewFactoryConfiguration *_configuration;
+  __weak id<RCTTurboModuleManagerDelegate> _turboModuleManagerDelegate;
+}
+
+- (instancetype)initWithConfiguration:(RCTRootViewFactoryConfiguration *)configuration
+        andTurboModuleManagerDelegate:(id<RCTTurboModuleManagerDelegate>)turboModuleManagerDelegate
+{
+  if (self = [super init]) {
+    _configuration = configuration;
+    _contextContainer = std::make_shared<facebook::react::ContextContainer const>();
+    _reactNativeConfig = std::make_shared<facebook::react::EmptyReactNativeConfig const>();
+    _contextContainer->insert("ReactNativeConfig", _reactNativeConfig);
+    _turboModuleManagerDelegate = turboModuleManagerDelegate;
+  }
+  return self;
+}
+
+- (UIView *)viewWithModuleName:(NSString *)moduleName initialProperties:(NSDictionary *)initialProperties
+{
+  return [self viewWithModuleName:moduleName initialProperties:initialProperties launchOptions:nil];
+}
+
+- (UIView *)viewWithModuleName:(NSString *)moduleName
+{
+  return [self viewWithModuleName:moduleName initialProperties:nil launchOptions:nil];
+}
+
+- (UIView *)viewWithModuleName:(NSString *)moduleName
+             initialProperties:(NSDictionary *)initialProperties
+                 launchOptions:(NSDictionary *)launchOptions
+{
+  NSDictionary *initProps = updateInitialProps(initialProperties, self->_configuration.fabricEnabled);
+
+  if (self->_configuration.bridgelessEnabled) {
+    // Enable native view config interop only if both bridgeless mode and Fabric is enabled.
+    RCTSetUseNativeViewConfigsInBridgelessMode(self->_configuration.fabricEnabled);
+
+    // Enable TurboModule interop by default in Bridgeless mode
+    RCTEnableTurboModuleInterop(YES);
+    RCTEnableTurboModuleInteropBridgeProxy(YES);
+
+    [self createReactHostIfNeeded:launchOptions];
+
+    RCTFabricSurface *surface = [_reactHost createSurfaceWithModuleName:moduleName initialProperties:initProps];
+
+    RCTSurfaceHostingProxyRootView *surfaceHostingProxyRootView = [[RCTSurfaceHostingProxyRootView alloc]
+        initWithSurface:surface
+        sizeMeasureMode:RCTSurfaceSizeMeasureModeWidthExact | RCTSurfaceSizeMeasureModeHeightExact];
+
+    return surfaceHostingProxyRootView;
+  }
+
+  [self createBridgeIfNeeded:launchOptions];
+  [self createBridgeAdapterIfNeeded];
+
+  if (self->_configuration.createRootViewWithBridge != nil) {
+    return self->_configuration.createRootViewWithBridge(self.bridge, moduleName, initProps);
+  }
+
+  return [self createRootViewWithBridge:self.bridge moduleName:moduleName initProps:initProps];
+}
+
+- (RCTBridge *)createBridgeWithDelegate:(id<RCTBridgeDelegate>)delegate launchOptions:(NSDictionary *)launchOptions
+{
+  return [[RCTBridge alloc] initWithDelegate:delegate launchOptions:launchOptions];
+}
+
+- (UIView *)createRootViewWithBridge:(RCTBridge *)bridge
+                          moduleName:(NSString *)moduleName
+                           initProps:(NSDictionary *)initProps
+{
+  BOOL enableFabric = self->_configuration.fabricEnabled;
+  UIView *rootView = RCTAppSetupDefaultRootView(bridge, moduleName, initProps, enableFabric);
+
+  rootView.backgroundColor = [UIColor systemBackgroundColor];
+
+  return rootView;
+}
+
+#pragma mark - RCTCxxBridgeDelegate
+- (std::unique_ptr<facebook::react::JSExecutorFactory>)jsExecutorFactoryForBridge:(RCTBridge *)bridge
+{
+  _runtimeScheduler = std::make_shared<facebook::react::RuntimeScheduler>(RCTRuntimeExecutorFromBridge(bridge));
+  if (RCTIsNewArchEnabled()) {
+    std::shared_ptr<facebook::react::CallInvoker> callInvoker =
+        std::make_shared<facebook::react::RuntimeSchedulerCallInvoker>(_runtimeScheduler);
+    RCTTurboModuleManager *turboModuleManager =
+        [[RCTTurboModuleManager alloc] initWithBridge:bridge
+                                             delegate:_turboModuleManagerDelegate
+                                            jsInvoker:callInvoker];
+    _contextContainer->erase("RuntimeScheduler");
+    _contextContainer->insert("RuntimeScheduler", _runtimeScheduler);
+    return RCTAppSetupDefaultJsExecutorFactory(bridge, turboModuleManager, _runtimeScheduler);
+  } else {
+    return RCTAppSetupJsExecutorFactoryForOldArch(bridge, _runtimeScheduler);
+  }
+}
+
+- (void)createBridgeIfNeeded:(NSDictionary *)launchOptions
+{
+  if (self.bridge != nil) {
+    return;
+  }
+
+  if (self->_configuration.createBridgeWithDelegate != nil) {
+    self.bridge = self->_configuration.createBridgeWithDelegate(self, launchOptions);
+  } else {
+    self.bridge = [self createBridgeWithDelegate:self launchOptions:launchOptions];
+  }
+}
+
+- (void)createBridgeAdapterIfNeeded
+{
+  if (!self->_configuration.fabricEnabled || self.bridgeAdapter) {
+    return;
+  }
+
+  self.bridgeAdapter = [[RCTSurfacePresenterBridgeAdapter alloc] initWithBridge:self.bridge
+                                                               contextContainer:_contextContainer];
+  self.bridge.surfacePresenter = self.bridgeAdapter.surfacePresenter;
+}
+
+#pragma mark - New Arch Utilities
+
+- (void)createReactHostIfNeeded:(NSDictionary *)launchOptions
+{
+  if (_reactHost) {
+    return;
+  }
+
+  __weak __typeof(self) weakSelf = self;
+  _reactHost = [[RCTHost alloc] initWithBundleURLProvider:self->_configuration.bundleURLBlock
+                                             hostDelegate:nil
+                               turboModuleManagerDelegate:_turboModuleManagerDelegate
+                                         jsEngineProvider:^std::shared_ptr<facebook::react::JSRuntimeFactory>() {
+                                           return [weakSelf createJSRuntimeFactory];
+                                         }
+                                            launchOptions:launchOptions];
+  [_reactHost setBundleURLProvider:^NSURL *() {
+    return [weakSelf bundleURL];
+  }];
+  [_reactHost setContextContainerHandler:self];
+  [_reactHost start];
+}
+
+- (std::shared_ptr<facebook::react::JSRuntimeFactory>)createJSRuntimeFactory
+{
+#if USE_HERMES
+  return std::make_shared<facebook::react::RCTHermesInstance>(_reactNativeConfig, nullptr);
+#else
+  return std::make_shared<facebook::react::RCTJscInstance>();
+#endif
+}
+
+- (void)didCreateContextContainer:(std::shared_ptr<facebook::react::ContextContainer>)contextContainer
+{
+  contextContainer->insert("ReactNativeConfig", _reactNativeConfig);
+}
+
+- (NSURL *)sourceURLForBridge:(RCTBridge *)bridge
+{
+  return [self bundleURL];
+}
+
+- (NSURL *)bundleURL
+{
+  return self->_configuration.bundleURLBlock();
+}
+
+@end