Sonarr/Radarr root folders created via API (201). Lidarr/Readarr deferred to
first-run wizard (v1 validators demand quality-profile ids that don't exist
yet). Root cause of the write failures: LSIO PUID=1000 under rootless podman
maps to host uid 101000 — a phantom user owning nothing; PUID=0 maps to the
host user that owns every media dir.