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/Wrapper/Example/RCTWrapperExampleView.h

@@ -0,0 +1,16 @@
+/*
+ * 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 <UIKit/UIKit.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface RCTWrapperExampleView : UIView
+
+@end
+
+NS_ASSUME_NONNULL_END

smart-app-city/frontend/node_modules/react-native/Libraries/Wrapper/Example/RCTWrapperExampleView.m

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+/*
+ * 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 "RCTWrapperExampleView.h"
+
+#import <RCTWrapper/RCTWrapper.h>
+
+@implementation RCTWrapperExampleView {
+  NSTimer *_timer;
+  CGSize _intrinsicContentSize;
+}
+
+- (instancetype)initWithFrame:(CGRect)frame
+{
+  if (self = [super initWithFrame:frame]) {
+    self.backgroundColor = [UIColor whiteColor];
+
+    _intrinsicContentSize = CGSizeMake(64, 64);
+    _timer = [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(tick) userInfo:nil repeats:YES];
+
+    UITapGestureRecognizer *gestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self
+                                                                                        action:@selector(tick)];
+    [self addGestureRecognizer:gestureRecognizer];
+  }
+  return self;
+}
+
+- (void)tick
+{
+  _intrinsicContentSize.width = 32 + arc4random() % 128;
+  _intrinsicContentSize.height = 32 + arc4random() % 128;
+
+  [self invalidateIntrinsicContentSize];
+  [self.superview setNeedsLayout];
+}
+
+- (CGSize)intrinsicContentSize
+{
+  return _intrinsicContentSize;
+}
+
+- (CGSize)sizeThatFits:(CGSize)size
+{
+  return CGSizeMake(MIN(size.width, _intrinsicContentSize.width), MIN(size.height, _intrinsicContentSize.height));
+}
+
+@end
+
+RCT_WRAPPER_FOR_VIEW(RCTWrapperExampleView)

smart-app-city/frontend/node_modules/react-native/Libraries/Wrapper/Example/RCTWrapperExampleViewController.h

@@ -0,0 +1,16 @@
+/*
+ * 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 <UIKit/UIKit.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface RCTWrapperExampleViewController : UIViewController
+
+@end
+
+NS_ASSUME_NONNULL_END

smart-app-city/frontend/node_modules/react-native/Libraries/Wrapper/Example/RCTWrapperExampleViewController.m

@@ -0,0 +1,23 @@
+/*
+ * 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 "RCTWrapperExampleViewController.h"
+
+#import <RCTWrapper/RCTWrapper.h>
+
+#import "RCTWrapperExampleView.h"
+
+@implementation RCTWrapperExampleViewController
+
+- (void)loadView
+{
+  self.view = [RCTWrapperExampleView new];
+}
+
+@end
+
+RCT_WRAPPER_FOR_VIEW_CONTROLLER(RCTWrapperExampleViewController)

smart-app-city/frontend/node_modules/react-native/Libraries/Wrapper/Example/RCTWrapperReactRootViewController.h

@@ -0,0 +1,20 @@
+/*
+ * 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 <UIKit/UIKit.h>
+
+@class RCTBridge;
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface RCTWrapperReactRootViewController : UIViewController
+
+- (instancetype)initWithBridge:(RCTBridge *)bridge;
+
+@end
+
+NS_ASSUME_NONNULL_END

smart-app-city/frontend/node_modules/react-native/Libraries/Wrapper/Example/RCTWrapperReactRootViewController.m

@@ -0,0 +1,46 @@
+/*
+ * 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 "RCTWrapperReactRootViewController.h"
+
+#import <RCTWrapper/RCTWrapper.h>
+#import <React/RCTBridge.h>
+#import <React/RCTRootView.h>
+
+#import "RCTWrapperExampleView.h"
+
+@implementation RCTWrapperReactRootViewController {
+  RCTBridge *_bridge;
+}
+
+- (instancetype)initWithBridge:(RCTBridge *)bridge
+{
+  if (self = [super initWithNibName:nil bundle:nil]) {
+    _bridge = bridge;
+  }
+
+  return self;
+}
+
+- (void)loadView
+{
+  RCTRootView *rootView = [[RCTRootView alloc] initWithBridge:_bridge
+                                                   moduleName:@"WrapperExample"
+                                            initialProperties:@{}];
+
+  rootView.backgroundColor = [UIColor whiteColor];
+
+  UIActivityIndicatorView *progressIndicatorView =
+      [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];
+  [progressIndicatorView startAnimating];
+  rootView.loadingView = progressIndicatorView;
+
+  rootView.sizeFlexibility = RCTRootViewSizeFlexibilityWidthAndHeight;
+  self.view = rootView;
+}
+
+@end

smart-app-city/frontend/node_modules/react-native/Libraries/Wrapper/Example/RCTWrapperReactRootViewManager.h

@@ -0,0 +1,18 @@
+/*
+ * 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 <UIKit/UIKit.h>
+
+#import <RCTWrapper/RCTWrapperViewManager.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface RCTWrapperReactRootViewManager : RCTWrapperViewManager
+
+@end
+
+NS_ASSUME_NONNULL_END

smart-app-city/frontend/node_modules/react-native/Libraries/Wrapper/Example/RCTWrapperReactRootViewManager.m

@@ -0,0 +1,31 @@
+/*
+ * 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 "RCTWrapperReactRootViewManager.h"
+
+#import <RCTWrapper/RCTWrapperView.h>
+#import <RCTWrapper/RCTWrapperViewControllerHostingView.h>
+
+#import "RCTWrapperReactRootViewController.h"
+
+@implementation RCTWrapperReactRootViewManager
+
+RCT_EXPORT_MODULE()
+
+- (UIView *)view
+{
+  RCTWrapperViewControllerHostingView *contentViewControllerHostingView = [RCTWrapperViewControllerHostingView new];
+
+  contentViewControllerHostingView.contentViewController =
+      [[RCTWrapperReactRootViewController alloc] initWithBridge:self.bridge];
+
+  RCTWrapperView *wrapperView = [super view];
+  wrapperView.contentView = contentViewControllerHostingView;
+  return wrapperView;
+}
+
+@end