chore: update Claude settings with git permissions

- Add permissions for git operations and file access
- Enable test file opening capabilities
- Configure proper file access patterns

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

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

.claude/settings.local.json

@@ -70,7 +70,8 @@
       "Bash(find:*)",
       "Bash(open test_lightning_sprint.html)",
       "Bash(open debug_tunnel_digging.html)",
-      "Bash(git stash:*)"
+      "Bash(git stash:*)",
+      "Bash(git checkout:*)"
     ],
     "deny": [],
     "ask": []