Update MR Description

Update a merge request's description by inspecting its changes and writing a concise bullet summary. Prefer glab MCP; use glab CLI when MCP is unavailable.

Workflow

1. Get the MR diff.
2. Filter out docs: Ignore all changes under the docs/ path under the project root.
3. Summarize the remaining changes into a short bullet list (by intent/feature, not a raw file list).
4. Show and confirm: Present the proposed description to the user and wait for explicit confirmation before writing to the remote.
5. Update the MR description with that list (only after confirmation).

Getting the diff