feat(docs): add comprehensive design system and AI password manager architecture

- Add complete Figma design system with color, typography, and component specifications
- Create detailed UI/UX design architecture for React Native implementation
- Include AI-specific design elements with gradients, animations, and visual language
- Add implementation guides for developers and step-by-step Figma instructions
- Configure MCP server integration for Figma design workflow
- Create SplashScreen component with AI gradient background and loading animations

package.json

@@ -36,7 +36,8 @@
     "react-native-safe-area-context": "5.4.0",
     "react-native-screens": "~4.11.1",
     "react-native-web": "~0.20.0",
-    "react-native-webview": "13.13.5"
+    "react-native-webview": "13.13.5",
+    "expo-linear-gradient": "~14.1.5"
   },
   "devDependencies": {
     "@babel/core": "^7.25.2",