GH-9988: Add FileExistsMode expression support#10019

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artembilan merged 6 commits intospring-projects:mainfrom

anthologia:GH-9988

May 15, 2025

Commits on May 13, 2025

Commits on May 14, 2025

Commits on May 15, 2025

Fix additional review feedback on FileExistsMode expression
anthologia
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