Address #3801#3802
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…hierarchies The fix introduced in ebc90e0 resolved TypeVariables only one level at a time: mapGenerics(beanType) read only the direct generic superclass, so for a chain like A extends B<String> / B<T> extends C<T>, processing C's fields produced an empty map, genericTypeMap.get(TypeVariable) returned null, propertyType became null, and AnnotationFields.readField threw an NPE calling prop.getPropertyType().isEnum(). Fix: build the full type-variable map once for the concrete bean type using TypeResolver.getTypeVariableMap, which walks the entire superclass/interface hierarchy and composes TypeVariable bindings transitively. The same map is passed at every level of the recursive createProperties walk, so any TypeVariable at any depth resolves correctly. Type-resolution helpers (resolveType, resolveToClass, resolveCollectionTarget, ResolvedParameterizedType) are consolidated in TypeReflectHelper so they are shared across callers and independently testable. Tests: TypeReflectHelperTest covers single and multi-level TypeVariable resolution and collection-element resolution. QProductWithGenericTest adds an integration regression test using a two-level generic chain (ProductWithGenericMiddle extends GenericMiddleModel<Long> extends GenericBaseModel<Long>).
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Address #3801