finish-tasklisted

# Finish Task Reply in Russian. The server appends the PR link idempotently, completes the selected generic target, and adds a clickable task link to the PR body; clients never send credentials. 1. **Config.** Read `task_board` from `.review.yml`, otherwise `get_board_config()`. Use only `type`, `project`, `create_target`, `done_target`, and `options`. If no board is resolved, report a board-less no-op. 2. **Resolve key and PR.** Match `key_pattern` on the current branch, newest `briefs` file, or `gh pr view --json title,body`; otherwise ask. Resolve the PR URL with `gh pr view --json url -q .url` (or ask). Missing key or URL is a no-op. 3. **Discover.** Call `get_board_targets(board_type=<type>, project=<project>, provider_options=<task_board.options or {}>)`. Select `done_target` from `targets` with a done purpose. For each option with `required_for` containing `finish`, resolve its value from `choices`; if required metadata is missing, ask instead of guessing. 4. **Offer + confirm.** Show the PR link and the **resolved done target** by its label plus every selected option, and state that a task link will be prepended to the PR body. Ask whether to add an optional note. Write **only after explicit confirmation**; never write to the board silently. 5. **Write.** Call ``` finish_task(key=<key>, pr_url=<url>, note=<note or null>, board_type=<type>, target=<done_target or null>, provider_options=<task_board.options or {}>) ``