fix(docs): exclude CLAUDE.md files from VitePress build

- add srcExclude: ['**/CLAUDE.md'] to prevent dead link errors
- CLAUDE.md files are AI context docs, not user-facing pages

Author: fishxcode

docs/.vitepress/config.mts

@@ -20,6 +20,7 @@ export default withPwa(
     description: SITE_DESC,
     lastUpdated: true,
     cleanUrls: true,
+    srcExclude: ["**/CLAUDE.md"],
     rewrites: {
       "zh-CN/:path": ":path",
     },