feat: add rec scheduler master and engine for rec framework[3/8]. #557
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DragonFive
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This PR is a follow-up to #440 and continues the work by introducing the orchestration layer for the generative recommendation scenario.
What’s included
Rec Engine Master: the control-plane component that coordinates the rec process.
Scheduler: scheduling logic to dispatch/coordinate recommendation tasks.
Out of scope (planned follow-ups)
The following pieces are intentionally not included in this PR and will be delivered incrementally:
Next PR: Rec Worker + input/output processors (for request ingestion and result emission).
Future PR: OneRec model implementation + ATB graph building/integration.
Later PR: Pure NPU inference path
Roadmap checklist
RecTypeplumbing + rec batch input builder layering feat: add rec_type and onerec batch input builder for rec framework[4/8]. #565