feat: add domain models and repositories for user, spool presets, and filaments

- Introduced SpoolPreset and User domain models with necessary DTOs and utility functions.
- Created AuthRepository, FilamentRepository, and SpoolPresetRepository interfaces for authentication and data management.
- Implemented UI components for filament display, including ColorSwatch, FilamentCard, and StockBar.
- Developed layout components such as Header and Screen for consistent app structure.
- Added reusable UI components like Badge, Button, Card, and Input for better user interaction.
- Established global constants and theme settings for consistent styling across the application.
- Implemented utility functions for filament calculations and formatting.
- Created Zustand stores for managing authentication, filament, and preset states.
- Configured TypeScript settings for improved development experience.

mobile/src/presentation/components/ui/Card.tsx

@@ -0,0 +1,28 @@
+import React from 'react';
+import { View, StyleSheet, type ViewProps } from 'react-native';
+import { colors, radius, spacing } from '@shared/theme';
+
+interface CardProps extends ViewProps {
+  children: React.ReactNode;
+  padding?: number;
+}
+
+/**
+ * Container card com fundo surface e borda sutil.
+ */
+export function Card({ children, padding = spacing[4], style, ...props }: CardProps): React.ReactElement {
+  return (
+    <View style={[styles.card, { padding }, style]} {...props}>
+      {children}
+    </View>
+  );
+}
+
+const styles = StyleSheet.create({
+  card: {
+    backgroundColor: colors.bgSurface,
+    borderRadius: radius.lg,
+    borderWidth: 1,
+    borderColor: colors.border,
+  },
+});