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/4.api/2.composables/use-request-url.md

@@ -0,0 +1,41 @@
+---
+title: 'useRequestURL'
+description: 'Access the incoming request URL with the useRequestURL composable.'
+links:
+  - label: Source
+    icon: i-simple-icons-github
+    to: https://github.com/nuxt/nuxt/blob/main/packages/nuxt/src/app/composables/url.ts
+    size: xs
+---
+
+`useRequestURL` is a helper function that returns an [URL object](https://developer.mozilla.org/en-US/docs/Web/API/URL/URL) working on both server-side and client-side.
+
+::important
+When utilizing [Hybrid Rendering](/docs/4.x/guide/concepts/rendering#hybrid-rendering) with cache strategies, all incoming request headers are dropped when handling the cached responses via the [Nitro caching layer](https://nitro.build/guide/cache) (meaning `useRequestURL` will return `localhost` for the `host`).
+
+You can define the [`cache.varies` option](https://nitro.build/guide/cache#options) to specify headers that will be considered when caching and serving the responses, such as `host` and `x-forwarded-host` for multi-tenant environments.
+::
+
+::code-group
+
+```vue [app/pages/about.vue]
+<script setup lang="ts">
+const url = useRequestURL()
+</script>
+
+<template>
+  <p>URL is: {{ url }}</p>
+  <p>Path is: {{ url.pathname }}</p>
+</template>
+```
+
+```html [Result in development]
+<p>URL is: http://localhost:3000/about</p>
+<p>Path is: /about</p>
+```
+
+::
+
+::tip{icon="i-simple-icons-mdnwebdocs" to="https://developer.mozilla.org/en-US/docs/Web/API/URL#instance_properties" target="_blank"}
+Read about the URL instance properties on the MDN documentation.
+::