<!-- swain-model-hint: sonnet, effort: low -- Update Swain Update the local installation of swain skills to the latest version, then reconcile governance configuration. Step 1 — Detect current installation Check whether contains any directories: If no swain skill directories are found, inform the user this appears to be a fresh install rather than an update, then continue anyway — the steps below work for both cases. Step 2 — Backup local modifications Before overwriting skill directories, check for user modifications that should be preserved. Detect modified files Compare local skill files a…