Dev-parity-only local playback Plug for Rindle.Storage.Local.
This Plug exists to give browser playback a correct HTTP path in local
development when the storage adapter is Rindle.Storage.Local. It is not the
production delivery posture for Rindle; production delivery stays on
redirect/native object-store byte serving.
Local responses reuse the same explicit, sanitized filename/disposition policy
as redirect delivery by consuming the normalized
Rindle.Delivery.ContentDisposition payload.
Telemetry contract:
[:rindle, :delivery, :range_request]measurements:%{system_time: integer(), offset: non_neg_integer(), length: pos_integer(), file_size: pos_integer()}metadata:%{profile: module(), adapter: module(), key: String.t(), actor_subject: String.t()}