[Hotfix Main]: fix(): Fix edge_split_layers implicit-default warning noise

[github-actions]

Hotfix of PR #1799 (#1799) to the main branch.
Hey @benflexcompute, please review this hotfix PR created from your original PR.

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Note

Low Risk
Small, narrowly-scoped change to params serialization/validation intended to reduce warning noise; risk is limited to accidentally omitting edge_split_layers in cases where it was meant to be treated as explicitly set.

Overview
Reduces spurious validation warnings for MeshingDefaults.edge_split_layers by treating the default value as non-user-set and stripping the implicitly serialized field from payloads.

Adds strip_implicit_edge_split_layers_inplace() and applies it before local validation (validate_params_with_context) and before draft uploads (Draft.update_simulation_params), while still emitting the existing non-beta warning when users explicitly set edge_split_layers (even to the default). Includes targeted unit tests covering both constructors/model-validate paths and upload/validation behavior.

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