preferred — Ordered list of provider IDs to try first. Providers not in
this list are excluded. When omitted the full available list is used.
weights — Optional weight map for weighted random selection. Providers
not listed default to weight 1.
blocked — Provider IDs to unconditionally exclude. Applied after the
preferred filter so a provider can be both preferred and blocked (the
block wins).
Per-modality provider preference configuration.
preferred— Ordered list of provider IDs to try first. Providers not in this list are excluded. When omitted the full available list is used.weights— Optional weight map for weighted random selection. Providers not listed default to weight1.blocked— Provider IDs to unconditionally exclude. Applied after the preferred filter so a provider can be both preferred and blocked (the block wins).