Add CLAUDE.md to .gitignore

Exclude CLAUDE.md from version control as it's a development aid
file specific to Claude Code usage and not part of the core project.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

Signed-off-by: k0x <[email protected]>

Author: KapilJ22

.gitignore

@@ -42,3 +42,6 @@ src/applications/bmqbrkr/etc/etc
 
 # 'sim_cpp11_features.pl' backups
 *.bak
+
+# Claude Code files
+CLAUDE.md