chore: gitignore claude worktrees

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: ovitrif

.gitignore

@@ -11,6 +11,7 @@
 local.properties
 # AI
 .ai
+.claude/worktrees
 *.local.*
 !*.local.template*
 # Secrets