[652-603]: Yasson ignores @JsonbTypeAdapter on class level of object in Collection/Map

[raushan606]

#652 & #603

📝 Implementation Notes

Two main things resolved here:

1. ObjectTypeSerializer Caching Problem:

• When objects were first encountered through collections, they were cached with collection-level customization
• This ignored class-level @JsonbTypeAdapter annotations
• Subsequent serializations reused the incorrectly cached serializer

2. Customization Context Mismatch:

• Collection serialization used property/context customization
• Class-level adapter annotations existed in class customization
• The two customization contexts weren't properly merged