Two knobs for the onboarding-burst quality work:
- TAPIR_ONBOARD_SUMMARIZER_MODEL (default iguana/gemma4-26b): the stronger model
the burst leads its chain with; empty collapses the burst onto the shared
processor (lookupOr, so explicit-empty disables).
- TAPIR_ONBOARD_MAX_VIDEO_SECONDS (default 14400/4h): upper duration bound for
burst picks; 0 disables, negative clamps to 0.
Table-driven tests cover defaults, explicit, disable, and invalid input.
mathias
679a163d3b