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-response-header.md

@@ -0,0 +1,47 @@
+---
+title: "useResponseHeader"
+description: "Use useResponseHeader to set a server response header."
+links:
+  - label: Source
+    icon: i-simple-icons-github
+    to: https://github.com/nuxt/nuxt/blob/main/packages/nuxt/src/app/composables/ssr.ts
+    size: xs
+---
+
+::important
+This composable is available in Nuxt v3.14+.
+::
+
+You can use the built-in [`useResponseHeader`](/docs/4.x/api/composables/use-response-header) composable to set any server response header within your pages, components, and plugins.
+
+```ts
+// Set a custom response header
+const header = useResponseHeader('X-My-Header')
+header.value = 'my-value'
+```
+
+## Example
+
+We can use `useResponseHeader` to easily set a response header on a per-page basis.
+
+```vue [app/pages/test.vue]
+<script setup>
+// pages/test.vue
+const header = useResponseHeader('X-My-Header')
+header.value = 'my-value'
+</script>
+
+<template>
+  <h1>Test page with custom header</h1>
+  <p>The response from the server for this "/test" page will have a custom "X-My-Header" header.</p>
+</template>
+```
+
+We can use `useResponseHeader` for example in Nuxt [middleware](/docs/4.x/directory-structure/app/middleware) to set a response header for all pages.
+
+```ts [app/middleware/my-header-middleware.ts]
+export default defineNuxtRouteMiddleware((to, from) => {
+  const header = useResponseHeader('X-My-Always-Header')
+  header.value = `I'm Always here!`
+})
+```