feat: 위키 저장소 초기 커밋

- CLAUDE.md 운영 규칙
- wiki/ 정리된 지식 페이지 (Nuxt + Claude Code)
- raw/ 원본 자료
- reference/ Nuxt 4.x 공식 문서

Co-authored-by: Cursor <cursoragent@cursor.com>

reference/2.directory-structure/1.app/1.assets.md

@@ -0,0 +1,16 @@
+---
+title: "assets"
+description: "The assets/ directory is used to add all the website's assets that the build tool will process."
+head.title: "assets/"
+navigation.icon: i-vscode-icons-folder-type-asset
+---
+
+The directory usually contains the following types of files:
+
+- Stylesheets (CSS, SASS, etc.)
+- Fonts
+- Images that won't be served from the [`public/`](/docs/4.x/directory-structure/public) directory.
+
+If you want to serve assets from the server, we recommend taking a look at the [`public/`](/docs/4.x/directory-structure/public) directory.
+
+:read-more{to="/docs/4.x/getting-started/assets"}