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/ReactApple/Libraries/RCTFoundation/RCTDeprecation/Exported/RCTDeprecation.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.
+ */
+
+#ifndef RCT_DEPRECATED_DECLARATIONS
+#define RCT_DEPRECATED_DECLARATIONS 0
+#endif
+
+#if RCT_DEPRECATED_DECLARATIONS
+#define RCT_DEPRECATED __attribute__((deprecated))
+#else
+#define RCT_DEPRECATED
+#endif

smart-app-city/frontend/node_modules/react-native/ReactApple/Libraries/RCTFoundation/RCTDeprecation/RCTDeprecation.m

@@ -0,0 +1,8 @@
+/*
+ * 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.
+ */
+
+// Dummy file to make RCTDeprecation a valid framework.

smart-app-city/frontend/node_modules/react-native/ReactApple/Libraries/RCTFoundation/RCTDeprecation/RCTDeprecation.podspec

@@ -0,0 +1,25 @@
+# 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.
+
+require "json"
+
+package = JSON.parse(File.read(File.join(__dir__, "..", "..", "..", "..", "package.json")))
+version = package['version']
+
+Pod::Spec.new do |s|
+    s.name                   = "RCTDeprecation"
+    s.version                = version
+    s.author                 = "Meta Platforms, Inc. and its affiliates"
+    s.license                = package["license"]
+    s.homepage               = "https://reactnative.dev/"
+    s.source                 = { :git => 'https://github.com/facebook/react-native.git', :tag => 'v#{version}' }
+    s.summary                = "Macros for marking APIs as deprecated"
+    s.source_files           = ["Exported/*.h", "RCTDeprecation.m"]
+    s.pod_target_xcconfig    = {
+      "DEFINES_MODULE" => "YES",
+      "CLANG_CXX_LANGUAGE_STANDARD" => "c++20"
+    }
+    s.compiler_flags         = "-Wnullable-to-nonnull-conversion -Wnullability-completeness"
+  end

smart-app-city/frontend/node_modules/react-native/ReactApple/Libraries/RCTFoundation/RCTDeprecation/README.md

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+RCTDeprecation contains C macros to identify deprecated APIs at build-time.

smart-app-city/frontend/node_modules/react-native/ReactApple/Libraries/RCTFoundation/README.md

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+# RCTFoundation
+
+RCTFoundation is a collection of lightweight utility libraries.
+
+Rules for RCTFoundation libraries:
+- They must only depend on other RCTFoundation libraries.
+- Headers cannot contain C++.
+- They have modular set to true in BUCK.
+- They have complete_nullability set to true.
+- They have enabled Clang compiler warnings.
+- They have documentation.
+- They have unit tests.