`clang-tidy`: resolve `bugprone-throwing-static-initialization`#472

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knoepfel merged 10 commits intomainfrom

maintenance/clang-tidy-fixes-2026-03-31

Apr 8, 2026

Commits on Apr 8, 2026

Resolve `bugprone-throwing-static-initialization` clang-tidy warnings
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Update test/data_cell_counting.cpp

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Return const& from for_output_only() to avoid dangling pointer

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Prevent unwanted empty entries for missing fundamental type access attempts
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Revert typeNameToLeafList to non-const with [] access; empty leaf list is intentional

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`cached_hash` should be `const`
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Report on `clang-tidy` fix progress
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`constexpr` -> `const`
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Add tests for filter_impl.cpp and data_layer_hierarchy.cpp coverage gaps

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Update test/data_cell_counting.cpp

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