feat: Introduce a comprehensive set of AI agent skills, agents, and workflows, along with new UI components and application structure.

constants/theme.ts

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+/**
+ * ManusAI Theme - Monochromatic/Minimalist
+ * 
+ * Design System:
+ * - Primary: White (#ffffff)
+ * - Background: Deep Matte Black (#09090b)
+ * - Surface: Zinc-900 (#18181b)
+ * - Border: Zinc-700 (#3f3f46)
+ * - Text: Zinc-50 (#fafafa)
+ */
+
+import { Platform } from 'react-native';
+
+const ManusColors = {
+  // Base
+  black: '#09090b',
+  zinc900: '#18181b',
+  zinc800: '#27272a',
+  zinc700: '#3f3f46',
+  zinc400: '#a1a1aa',
+  zinc50: '#fafafa',
+  white: '#ffffff',
+
+  // Semantic
+  background: '#09090b',
+  surface: '#18181b',
+  surfaceHighlight: '#27272a',
+  primary: '#ffffff',
+  border: '#3f3f46',
+  text: '#fafafa',
+  textSecondary: '#a1a1aa',
+  error: '#ef4444',
+};
+
+export const Colors = {
+  light: {
+    text: ManusColors.black,
+    background: ManusColors.white,
+    tint: ManusColors.black,
+    icon: ManusColors.zinc700,
+    tabIconDefault: ManusColors.zinc400,
+    tabIconSelected: ManusColors.black,
+    // Manus Specific
+    surface: '#f4f4f5', // Zinc-100
+    surfaceHighlight: '#e4e4e7', // Zinc-200
+    border: '#d4d4d8', // Zinc-300
+    textSecondary: ManusColors.zinc700,
+    primary: ManusColors.black,
+  },
+  dark: {
+    text: ManusColors.text,
+    background: ManusColors.background,
+    tint: ManusColors.primary,
+    icon: ManusColors.zinc400,
+    tabIconDefault: ManusColors.zinc400,
+    tabIconSelected: ManusColors.primary,
+    // Manus Specific
+    surface: ManusColors.surface,
+    surfaceHighlight: ManusColors.surfaceHighlight,
+    border: ManusColors.border,
+    textSecondary: ManusColors.textSecondary,
+    primary: ManusColors.primary,
+  },
+  // Unified access for components that ignore system theme
+  manus: ManusColors,
+};
+
+export const Fonts = Platform.select({
+  ios: {
+    sans: 'system-ui',
+    serif: 'ui-serif',
+    rounded: 'ui-rounded',
+    mono: 'ui-monospace',
+  },
+  android: {
+    sans: 'sans-serif',
+    serif: 'serif',
+    rounded: 'sans-serif-medium',
+    mono: 'monospace',
+  },
+  default: {
+    sans: 'system-ui',
+    serif: 'serif',
+    rounded: 'system-ui',
+    mono: 'monospace',
+  },
+});