Renamed flooding_cell_size to min_passage_size

[NasserFlexCompute]

Note

Low Risk
Pure parameter rename/validation/translation whitelist update with no algorithmic changes; main risk is backward-compatibility for configs still using flooding_cell_size.

Overview
Renames the Geometry-AI-only meshing default flooding_cell_size to min_passage_size, updates its description to reflect hidden-geometry passage detection semantics, and keeps it gated behind remove_hidden_geometry.

Updates GAI surface-meshing JSON filtering/whitelisting to emit min_passage_size, and adjusts validation/tests to enforce the new field name and error message.

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[Copilot]

Pull request overview

This pull request renames the flooding_cell_size parameter to min_passage_size in the meshing configuration. The rename affects the field name, description, validation logic, error messages, and corresponding tests. The new name min_passage_size better reflects that this parameter represents the minimum passage size resolved by the flood-fill exterior classification algorithm, rather than a cell size.

Changes:

• Renamed flooding_cell_size field to min_passage_size in the MeshingDefaults model
• Updated the field description to clarify it represents "minimum passage size" rather than "minimum cell size"
• Updated validation function and error message to reference the new field name
• Updated all test cases to use the new parameter name

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
flow360/component/simulation/meshing_param/meshing_specs.py	Renamed field from flooding_cell_size to min_passage_size, updated description and validation logic
flow360/component/simulation/translator/surface_meshing_translator.py	Updated whitelist dictionary to include min_passage_size instead of flooding_cell_size
tests/simulation/params/meshing_validation/test_meshing_param_validation.py	Updated test function name, docstrings, comments, assertions, and parameter usage to reflect the rename

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