[BREAKING][rollout, trainer, algo] feat: comprehensive rollout importance sampling implementation#3694

Merged

vermouth1992 merged 15 commits intoverl-project:mainfrom

szrlee:yingru/handle-mismatch

Oct 13, 2025

Commits on Oct 7, 2025

feat: replace TIS with comprehensive rollout importance sampling
szrlee
committed

Commits on Oct 8, 2025

refactor: optimize rollout IS architecture and remove unnecessary params
szrlee
committed

Commits on Oct 11, 2025

docs(rollout_is): fix metric prefix and add sequence-level example
szrlee
committed

Commits on Oct 12, 2025

refactor(rollout_is): move config to algorithm, add metrics-only mode
szrlee
committed