feat: Add PH2164 analyzer to enforce StringComparer for string-keyed collections#1029

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Copilot wants to merge 6 commits intomainfrom

copilot/fix-c7d2013d-89a8-4bb1-99d8-cc9989285f29

Commits on Oct 7, 2025

Merge branch 'main' into copilot/fix-c7d2013d-89a8-4bb1-99d8-cc9989285f29
Brian Collamore (bcollamore)
authored

Commits on Oct 13, 2025

Address review feedback: change severity to Error, enable by default, merge nested if statements, simplify tests

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Brian Collamore (bcollamore)
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