Works the Drupal issue lifecycle — reviews prior work on an issue first, then creates / comments on / claims it, and checks out the issue fork + branch with three-way fork handling. Use when the user runs /drupal-ai-contrib:issue or asks to find, create, claim, or check out a Drupal issue or issue fork. Wraps drupalorg-cli for no-auth reads; delegates authenticated GitLab fork/push to the drupal-gitlab skill.
