GitLab

* [Enhancement] Improve layout inference in Copy operation (#426)

* Updated the Copy operation to infer layouts at multiple levels (kCommon, kStrict, kFree) for enhanced flexibility in layout optimization.
* Added detailed documentation for layout inference levels in ParallelOp, clarifying their purposes and use cases.
* Refactored layout inference logic to accommodate new levels, improving overall robustness and performance in parallel operations.

* lint fix