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/third-party-podspecs/DoubleConversion.podspec

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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.
+
+Pod::Spec.new do |spec|
+  spec.name = 'DoubleConversion'
+  spec.version = '1.1.6'
+  spec.license = { :type => 'MIT' }
+  spec.homepage = 'https://github.com/google/double-conversion'
+  spec.summary = 'Efficient binary-decimal and decimal-binary conversion routines for IEEE doubles'
+  spec.authors = 'Google'
+  spec.prepare_command = 'mv src double-conversion'
+  spec.source = { :git => 'https://github.com/google/double-conversion.git',
+                  :tag => "v#{spec.version}" }
+  spec.module_name = 'DoubleConversion'
+  spec.header_dir = 'double-conversion'
+  spec.source_files = 'double-conversion/*.{h,cc}'
+  spec.compiler_flags = '-Wno-unreachable-code'
+
+  spec.user_target_xcconfig = { "HEADER_SEARCH_PATHS" => "\"$(PODS_ROOT)/DoubleConversion\"" }
+
+  spec.pod_target_xcconfig = {
+    "DEFINES_MODULE" => "YES",
+  }
+
+  # Pinning to the same version as React.podspec.
+  spec.platforms = min_supported_versions
+
+end

smart-app-city/frontend/node_modules/react-native/third-party-podspecs/RCT-Folly.podspec

@@ -0,0 +1,117 @@
+# 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.
+
+folly_config = get_folly_config()
+folly_compiler_flags = folly_config[:compiler_flags]
+folly_release_version = folly_config[:version]
+
+Pod::Spec.new do |spec|
+  spec.name = 'RCT-Folly'
+  # Patched to v2 to address https://github.com/react-native-community/releases/issues/251
+  spec.version = folly_release_version
+  spec.license = { :type => 'Apache License, Version 2.0' }
+  spec.homepage = 'https://github.com/facebook/folly'
+  spec.summary = 'An open-source C++ library developed and used at Facebook.'
+  spec.authors = 'Facebook'
+  spec.source = { :git => 'https://github.com/facebook/folly.git',
+                  :tag => "v#{folly_release_version}" }
+  spec.module_name = 'folly'
+  spec.header_mappings_dir = '.'
+  spec.dependency 'boost'
+  spec.dependency 'DoubleConversion'
+  spec.dependency 'glog'
+  spec.dependency "fmt", "9.1.0"
+  spec.compiler_flags = folly_compiler_flags + ' -DFOLLY_HAVE_PTHREAD=1 -Wno-documentation -faligned-new'
+  spec.source_files = 'folly/String.cpp',
+                      'folly/Conv.cpp',
+                      'folly/Demangle.cpp',
+                      'folly/FileUtil.cpp',
+                      'folly/Format.cpp',
+                      'folly/lang/SafeAssert.cpp',
+                      'folly/lang/ToAscii.cpp',
+                      'folly/ScopeGuard.cpp',
+                      'folly/Unicode.cpp',
+                      'folly/dynamic.cpp',
+                      'folly/json.cpp',
+                      'folly/json_pointer.cpp',
+                      'folly/container/detail/F14Table.cpp',
+                      'folly/detail/Demangle.cpp',
+                      'folly/detail/FileUtilDetail.cpp',
+                      'folly/detail/SplitStringSimd.cpp',
+                      'folly/detail/UniqueInstance.cpp',
+                      'folly/hash/SpookyHashV2.cpp',
+                      'folly/lang/Assume.cpp',
+                      'folly/lang/CString.cpp',
+                      'folly/lang/Exception.cpp',
+                      'folly/memory/detail/MallocImpl.cpp',
+                      'folly/net/NetOps.cpp',
+                      'folly/portability/SysUio.cpp',
+                      'folly/synchronization/SanitizeThread.cpp',
+                      'folly/system/AtFork.cpp',
+                      'folly/system/ThreadId.cpp',
+                      'folly/*.h',
+                      'folly/container/*.h',
+                      'folly/container/detail/*.h',
+                      'folly/detail/*.h',
+                      'folly/functional/*.h',
+                      'folly/hash/*.h',
+                      'folly/lang/*.h',
+                      'folly/memory/*.h',
+                      'folly/memory/detail/*.h',
+                      'folly/net/*.h',
+                      'folly/net/detail/*.h',
+                      'folly/portability/*.h',
+                      'folly/system/*.h',
+
+  # workaround for https://github.com/facebook/react-native/issues/14326
+  spec.preserve_paths = 'folly/*.h',
+                        'folly/container/*.h',
+                        'folly/container/detail/*.h',
+                        'folly/detail/*.h',
+                        'folly/functional/*.h',
+                        'folly/hash/*.h',
+                        'folly/lang/*.h',
+                        'folly/memory/*.h',
+                        'folly/memory/detail/*.h',
+                        'folly/net/*.h',
+                        'folly/net/detail/*.h',
+                        'folly/portability/*.h',
+                        'folly/system/*.h',
+  spec.libraries           = "c++abi" # NOTE Apple-only: Keep c++abi here due to https://github.com/react-native-community/releases/issues/251
+  spec.pod_target_xcconfig = { "USE_HEADERMAP" => "NO",
+                               "CLANG_CXX_LANGUAGE_STANDARD" => "c++20",
+                               "HEADER_SEARCH_PATHS" => "\"$(PODS_TARGET_SRCROOT)\" \"$(PODS_ROOT)/boost\" \"$(PODS_ROOT)/DoubleConversion\" \"$(PODS_ROOT)/fmt/include\"",
+                               # In dynamic framework (use_frameworks!) mode, ignore the unused and undefined boost symbols when generating the library.
+                               "OTHER_LDFLAGS" => "\"-Wl,-U,_jump_fcontext\" \"-Wl,-U,_make_fcontext\""
+                             }
+
+  # TODO: The boost spec should really be selecting these files so that dependents of Folly can also access the required headers.
+  spec.user_target_xcconfig = { "HEADER_SEARCH_PATHS" => "\"$(PODS_ROOT)/boost\"" }
+
+  spec.default_subspec = 'Default'
+
+  spec.subspec 'Default' do
+    # no-op
+  end
+
+  spec.subspec 'Fabric' do |fabric|
+    fabric.source_files = 'folly/SharedMutex.cpp',
+                          'folly/concurrency/CacheLocality.cpp',
+                          'folly/detail/Futex.cpp',
+                          'folly/synchronization/ParkingLot.cpp',
+                          'folly/portability/Malloc.cpp',
+                          'folly/concurrency/CacheLocality.h',
+                          'folly/synchronization/*.h',
+                          'folly/system/ThreadId.h'
+
+    fabric.preserve_paths = 'folly/concurrency/CacheLocality.h',
+                            'folly/synchronization/*.h',
+                            'folly/system/ThreadId.h'
+  end
+
+  # Folly has issues when compiled with iOS 10 set as deployment target
+  # See https://github.com/facebook/folly/issues/1470 for details
+  spec.platforms = min_supported_versions
+end

smart-app-city/frontend/node_modules/react-native/third-party-podspecs/boost.podspec

@@ -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.
+
+Pod::Spec.new do |spec|
+  spec.name = 'boost'
+  spec.version = '1.83.0'
+  spec.license = { :type => 'Boost Software License', :file => "LICENSE_1_0.txt" }
+  spec.homepage = 'http://www.boost.org'
+  spec.summary = 'Boost provides free peer-reviewed portable C++ source libraries.'
+  spec.authors = 'Rene Rivera'
+  spec.source = { :http => 'https://archives.boost.io/release/1.83.0/source/boost_1_83_0.tar.bz2',
+                  :sha256 => '6478edfe2f3305127cffe8caf73ea0176c53769f4bf1585be237eb30798c3b8e' }
+
+  # Pinning to the same version as React.podspec.
+  spec.platforms = min_supported_versions
+  spec.requires_arc = false
+
+  spec.module_name = 'boost'
+  spec.header_dir = 'boost'
+  spec.preserve_path = 'boost'
+end

smart-app-city/frontend/node_modules/react-native/third-party-podspecs/fmt.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.
+
+Pod::Spec.new do |spec|
+  spec.name = "fmt"
+  spec.version = "9.1.0"
+  spec.license = { :type => "MIT" }
+  spec.homepage = "https://github.com/fmtlib/fmt"
+  spec.summary = "{fmt} is an open-source formatting library for C++. It can be used as a safe and fast alternative to (s)printf and iostreams."
+  spec.authors = "The fmt contributors"
+  spec.source = {
+    :git => "https://github.com/fmtlib/fmt.git",
+    :tag => "9.1.0"
+  }
+  spec.pod_target_xcconfig = {
+    "CLANG_CXX_LANGUAGE_STANDARD" => "c++20",
+  }
+  spec.platforms = min_supported_versions
+  spec.libraries = "c++"
+  spec.public_header_files = "include/fmt/*.h"
+  spec.header_mappings_dir = "include"
+  spec.source_files = ["include/fmt/*.h", "src/format.cc"]
+end

smart-app-city/frontend/node_modules/react-native/third-party-podspecs/glog.podspec

@@ -0,0 +1,54 @@
+# 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.
+
+Pod::Spec.new do |spec|
+  spec.name = 'glog'
+  spec.version = '0.3.5'
+  spec.license = { :type => 'Google', :file => 'COPYING' }
+  spec.homepage = 'https://github.com/google/glog'
+  spec.summary = 'Google logging module'
+  spec.authors = 'Google'
+
+  spec.prepare_command = File.read("../scripts/ios-configure-glog.sh")
+  spec.source = { :git => 'https://github.com/google/glog.git',
+                  :tag => "v#{spec.version}" }
+  spec.module_name = 'glog'
+  spec.header_dir = 'glog'
+  spec.source_files = 'src/glog/*.h',
+                      'src/demangle.cc',
+                      'src/logging.cc',
+                      'src/raw_logging.cc',
+                      'src/signalhandler.cc',
+                      'src/symbolize.cc',
+                      'src/utilities.cc',
+                      'src/vlog_is_on.cc'
+  # workaround for https://github.com/facebook/react-native/issues/14326
+  spec.preserve_paths = 'src/*.h',
+                        'src/base/*.h'
+  spec.exclude_files       = "src/windows/**/*"
+  spec.compiler_flags      = '-Wno-shorten-64-to-32'
+
+  # TODO: T167482718 Remove this code after April 2024, when Apple will
+  # push the lower version of Xcode required to upload apps to the Store.
+  xcode_path = `xcodebuild -version` # This return the current version of Xcode
+
+  match = xcode_path.match(/Xcode (\d+)\.(\d+)/)
+  major_version = match[1].to_i
+  minor_version = match[2].to_i
+  is_greater_than_15 = major_version >= 15
+  is_greater_than_14_3 = major_version == 14 && minor_version >= 3
+  should_define_modules = is_greater_than_15 ? "YES" : is_greater_than_14_3 ? "YES" : "NO"
+  # End TODO.
+
+  spec.pod_target_xcconfig = {
+    "USE_HEADERMAP" => "NO",
+    "HEADER_SEARCH_PATHS" => "$(PODS_TARGET_SRCROOT)/src",
+    "DEFINES_MODULE" => should_define_modules # When the workaround is removed, set this var to "YES"
+  }
+
+  # Pinning to the same version as React.podspec.
+  spec.platforms = min_supported_versions
+
+end