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/Text/BaseText/RCTBaseTextViewManager.mm

@@ -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.
+ */
+
+#import <React/RCTBaseTextViewManager.h>
+
+@implementation RCTBaseTextViewManager
+
+RCT_EXPORT_MODULE(RCTBaseText)
+
+- (UIView *)view
+{
+  RCTAssert(NO, @"The `-[RCTBaseTextViewManager view]` property must be overridden in subclass.");
+  return nil;
+}
+
+- (RCTShadowView *)shadowView
+{
+  RCTAssert(NO, @"The `-[RCTBaseTextViewManager shadowView]` property must be overridden in subclass.");
+  return nil;
+}
+
+#pragma mark - Text Attributes
+
+// Color
+RCT_REMAP_SHADOW_PROPERTY(color, textAttributes.foregroundColor, UIColor)
+RCT_REMAP_SHADOW_PROPERTY(backgroundColor, textAttributes.backgroundColor, UIColor)
+RCT_REMAP_SHADOW_PROPERTY(opacity, textAttributes.opacity, CGFloat)
+// Font
+RCT_REMAP_SHADOW_PROPERTY(fontFamily, textAttributes.fontFamily, NSString)
+RCT_REMAP_SHADOW_PROPERTY(fontSize, textAttributes.fontSize, CGFloat)
+RCT_REMAP_SHADOW_PROPERTY(fontWeight, textAttributes.fontWeight, NSString)
+RCT_REMAP_SHADOW_PROPERTY(fontStyle, textAttributes.fontStyle, NSString)
+RCT_REMAP_SHADOW_PROPERTY(fontVariant, textAttributes.fontVariant, NSArray)
+RCT_REMAP_SHADOW_PROPERTY(allowFontScaling, textAttributes.allowFontScaling, BOOL)
+RCT_REMAP_SHADOW_PROPERTY(dynamicTypeRamp, textAttributes.dynamicTypeRamp, RCTDynamicTypeRamp)
+RCT_REMAP_SHADOW_PROPERTY(maxFontSizeMultiplier, textAttributes.maxFontSizeMultiplier, CGFloat)
+RCT_REMAP_SHADOW_PROPERTY(letterSpacing, textAttributes.letterSpacing, CGFloat)
+// Paragraph Styles
+RCT_REMAP_SHADOW_PROPERTY(lineHeight, textAttributes.lineHeight, CGFloat)
+RCT_REMAP_SHADOW_PROPERTY(textAlign, textAttributes.alignment, NSTextAlignment)
+RCT_REMAP_SHADOW_PROPERTY(writingDirection, textAttributes.baseWritingDirection, NSWritingDirection)
+RCT_REMAP_SHADOW_PROPERTY(lineBreakStrategyIOS, textAttributes.lineBreakStrategy, NSLineBreakStrategy)
+// Decoration
+RCT_REMAP_SHADOW_PROPERTY(textDecorationColor, textAttributes.textDecorationColor, UIColor)
+RCT_REMAP_SHADOW_PROPERTY(textDecorationStyle, textAttributes.textDecorationStyle, NSUnderlineStyle)
+RCT_REMAP_SHADOW_PROPERTY(textDecorationLine, textAttributes.textDecorationLine, RCTTextDecorationLineType)
+// Shadow
+RCT_REMAP_SHADOW_PROPERTY(textShadowOffset, textAttributes.textShadowOffset, CGSize)
+RCT_REMAP_SHADOW_PROPERTY(textShadowRadius, textAttributes.textShadowRadius, CGFloat)
+RCT_REMAP_SHADOW_PROPERTY(textShadowColor, textAttributes.textShadowColor, UIColor)
+// Special
+RCT_REMAP_SHADOW_PROPERTY(isHighlighted, textAttributes.isHighlighted, BOOL)
+RCT_REMAP_SHADOW_PROPERTY(textTransform, textAttributes.textTransform, RCTTextTransform)
+
+@end