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

.kilocode/mcp.json

@@ -0,0 +1,15 @@
+{
+  "mcpServers": {
+    "figma-dev-mode": {
+      "type": "sse",
+      "url": "http://127.0.0.1:3845/sse",
+      "alwaysAllow": [
+        "get_image",
+        "create_design_system_rules",
+        "get_code",
+        "get_variable_defs",
+        "get_code_connect_map"
+      ]
+    }
+  }
+}