Finishing A Development Branch

When your feature branch is done and tests are green, this walks you through the four main options: merge locally, push and create a PR, keep it as is, or discard the work. It runs your test suite first and won't let you proceed if anything fails, then presents a clean decision menu. The smart bit is it handles the worktree cleanup automatically for local merges and discards but leaves it intact when you're creating a PR or explicitly keeping the branch around. Requires typed confirmation before deleting work. Designed to be called by subagent-driven-development and executing-plans skills when they finish their work.