[kotlin-spring] Add sealed class polymorphism support#23400

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rvlasveld:feature/kotlin-spring-polymorphism

Commits on Mar 31, 2026

[kotlin-spring] Add sealed class polymorphism support via useSealedDiscriminatorClasses option

rvlasveld
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claude
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Fix review issues: parent constructor call and hasVars/hasRequired flags

rvlasveld
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claude
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