fix(csharp): use numeric JSON operations for integer enum converters#22917

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alexaka1 wants to merge 9 commits intoOpenAPITools:masterfrom

alexaka1:copilot/fix-enum-string-generation

Commits on Feb 7, 2026

fix(csharp): use numeric JSON operations for integer enum converters in C# generichost

alexaka1
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fix: handle double/float/decimal enums correctly in JSON converters

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alexaka1
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test: use actual int64 values for LongEnum test spec

Copilot
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alexaka1
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fix: eliminate extra blank lines in generated enum converters

Copilot
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alexaka1
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fix: validate integer/long enum values during deserialization

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alexaka1
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fix: remove InvariantCulture from enum ToString calls in Read methods

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alexaka1
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fix: nullable enum converters - use WriteNullValue() and handle null token in Read

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alexaka1
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fix: emit `: long` for int64 enum declarations and add test assertions

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alexaka1
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fix: add space before colon in enum type declaration per C# convention

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alexaka1
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