[REA-5060] Add the managed distributed video model adapter - #176
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## Why Model authors should declare their worker and typed video output without reimplementing threading, session bookkeeping, and cleanup around WorkerGroup. This layer supplies that managed authoring path without introducing an engine-host dependency. ## What Changed Adds the experimental DistributedVideoModel adapter with worker configuration, control snapshots, frame-to-output mapping, pause/restart, and worker cleanup. Authoring and configuration tests cover the adapter contract, while the dependent example PR exercises the complete run-loop lifecycle. The scope remains single-node, single-session uint8 video, not arbitrary structured outputs or multi-session scheduling. Local Python 3.12 unit/contract tests, lint, and type checking pass. Signed-off-by: Kavya <58096384+maxmb1@users.noreply.github.com>
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This was referenced Sep 9, 2026
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Why
Model authors should declare their worker and typed video output without reimplementing threading, session bookkeeping, and cleanup around WorkerGroup. This layer supplies that managed authoring path without introducing an engine-host dependency.
What Changed
Adds the experimental DistributedVideoModel adapter with worker configuration, control snapshots, frame-to-output mapping, pause/restart, and worker cleanup. Authoring and configuration tests cover the adapter contract, while the dependent example PR exercises the complete run-loop lifecycle. The scope remains single-node, single-session uint8 video, not arbitrary structured outputs or multi-session scheduling. Local Python 3.12 unit/contract tests, lint, and type checking pass.