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/scripts/cocoapods/codegen.rb

@@ -0,0 +1,59 @@
+# 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_relative './helpers.rb'
+
+# It builds the codegen CLI if it is not present
+#
+# Parameters:
+# - react_native_path: the path to the react native installation
+# - relative_installation_root: the path to the relative installation root of the pods
+# - dir_manager: a class that implements the `Dir` interface. Defaults to `Dir`, the Dependency can be injected for testing purposes.
+# @throws an error if it could not find the codegen folder.
+def build_codegen!(react_native_path, relative_installation_root, dir_manager: Dir)
+  codegen_repo_path = "#{basePath(react_native_path, relative_installation_root)}/../react-native-codegen"
+  return unless dir_manager.exist?(codegen_repo_path) && !dir_manager.exist?("#{codegen_repo_path}/lib")
+
+  Pod::UI.puts "[Codegen] building #{codegen_repo_path}"
+  system("#{codegen_repo_path}/scripts/oss/build.sh")
+end
+
+# keeping the run_codegen! method for testing purposes
+def run_codegen!(
+  app_path,
+  config_file_dir,
+  new_arch_enabled: false,
+  disable_codegen: false,
+  react_native_path: "../node_modules/react-native",
+  fabric_enabled: false,
+  hermes_enabled: true,
+  codegen_output_dir: 'build/generated/ios',
+  config_key: 'codegenConfig',
+  package_json_file: '~/app/package.json',
+  folly_version: Helpers::Constants.folly_config()[:version],
+  codegen_utils: CodegenUtils.new()
+  )
+
+  codegen_utils.use_react_native_codegen_discovery!(
+    disable_codegen,
+    app_path,
+    :react_native_path => react_native_path,
+    :fabric_enabled => fabric_enabled,
+    :hermes_enabled => hermes_enabled,
+    :config_file_dir => config_file_dir,
+    :codegen_output_dir => codegen_output_dir,
+    :config_key => config_key,
+    :folly_version => folly_version
+  )
+end
+
+def basePath(react_native_path, relative_installation_root)
+  expanded_path = File.expand_path(react_native_path)
+  if expanded_path == react_native_path
+    react_native_path
+  else
+    File.join(relative_installation_root.to_s, react_native_path)
+  end
+end