chore(claude/settings): allow git branch command

Add git branch to the list of auto-allowed Bash commands so Claude
can inspect and manage branches without prompting for permission.

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

claude/settings.json

@@ -22,6 +22,7 @@
       "Bash(gh pr view:*)",
       "Bash(gh repo view:*)",
       "Bash(git add:*)",
+      "Bash(git branch:*)",
       "Bash(git diff:*)",
       "Bash(git fetch:*)",
       "Bash(git log:*)",