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/3.utils/abort-navigation.md

@@ -0,0 +1,73 @@
+---
+title: 'abortNavigation'
+description: 'abortNavigation is a helper function that prevents navigation from taking place and throws an error if one is set as a parameter.'
+links:
+  - label: Source
+    icon: i-simple-icons-github
+    to: https://github.com/nuxt/nuxt/blob/main/packages/nuxt/src/app/composables/router.ts
+    size: xs
+---
+
+::warning
+`abortNavigation` is only usable inside a [route middleware handler](/docs/4.x/directory-structure/app/middleware).
+::
+
+## Type
+
+```ts [Signature]
+export function abortNavigation (err?: Error | string): false
+```
+
+## Parameters
+
+### `err`
+
+- **Type**: [`Error`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error) | `string`
+
+  Optional error to be thrown by `abortNavigation`.
+
+## Examples
+
+The example below shows how you can use `abortNavigation` in a route middleware to prevent unauthorized route access:
+
+```ts [app/middleware/auth.ts]
+export default defineNuxtRouteMiddleware((to, from) => {
+  const user = useState('user')
+
+  if (!user.value.isAuthorized) {
+    return abortNavigation()
+  }
+
+  if (to.path !== '/edit-post') {
+    return navigateTo('/edit-post')
+  }
+})
+```
+
+### `err` as a String
+
+You can pass the error as a string:
+
+```ts [app/middleware/auth.ts]
+export default defineNuxtRouteMiddleware((to, from) => {
+  const user = useState('user')
+
+  if (!user.value.isAuthorized) {
+    return abortNavigation('Insufficient permissions.')
+  }
+})
+```
+
+### `err` as an Error Object
+
+You can pass the error as an [`Error`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error) object, e.g. caught by the `catch`-block:
+
+```ts [app/middleware/auth.ts]
+export default defineNuxtRouteMiddleware((to, from) => {
+  try {
+    /* code that might throw an error */
+  } catch (err) {
+    return abortNavigation(err)
+  }
+})
+```