The artist page + external-links payload (/api/artist/{name}/page, /links,
/links/refresh) plus their exclusive helpers (_artist_links_payload,
_artist_links_from_mb, the URL-slot table) move to lib/routers/artist.py. Bodies
verbatim except @app->@router and the seam reads (meta_db->appstate.meta_db,
CONFIG_DIR->appstate.config_dir, _default_settings->appstate.default_settings).
MB link enrichment is reached as enrichment.X; the URL-safety validator is
imported from lib/library_registry.py. No new seams.
server.py: 2,507 -> 2,413 (-94).
Verified: pyflakes clean; route set unchanged (143); full pytest 2395 passed.
eslint 0.
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>