better claude ignore

Signed-off-by: Matteo Collina <hello@matteocollina.com>

Author: mcollina

.gitignore

@@ -88,4 +88,7 @@ undici-fetch.js
 
 # File generated by /test/request-timeout.js
 test/request-timeout.10mb.bin
+
+# Claude files
 CLAUDE.md
+.claude