wol-soft / php-json-schema-model-generator / 22780353222

Pull #115

github

Transfer if/then/else branch properties to parent schema with correct union types

- if/then/else composition now transfers all branch properties (if, then, else)
  to the parent schema, making them accessible as typed properties on the model
- ConditionalPropertyValidator distinguishes composed properties (all branches,
  for transfer) from data branches (then/else only, for widening checks), so
  the if condition block is never treated as a competing data branch when
  computing type-widening eligibility
- Cross-typed then/else branches produce union type hints (int | string | null),
  consistent with anyOf/oneOf behaviour
- then-only branches produce nullable hints (?int) since the branch may not apply
- Fix PropertyMerger readonly constructor promotion (PHP 8.1 only) to plain
  private for PHP 8.0 compatibility
- Add PHP version compatibility rule to CLAUDE.md
- Document cross-typed if/then/else union type behaviour in docs/source/combinedSchemas/if.rst

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