chore: gitignore .claude/ directory

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: Frank Guo

.claude/skills/rekal/SKILL.md

@@ -22,6 +22,7 @@
 # Local config (optional; uncomment if you don't want to track)
 # .config/
 .rekal/
+.claude/
 
 # Build dependencies (llama.cpp)
 .deps/