[QUESTION] 动态类型及annotation单独maven包

### 请描述您的问题
*询问有关本项目的使用和其他方面的相关问题。*

怎么支持动态类型，要求不能写出class数据，要保证redis/数据库/前端的数据一模一样，jackson写法如下：

```java
@JsonTypeInfo(use = JsonTypeInfo.Id.NAME, include = JsonTypeInfo.As.EXISTING_PROPERTY, property = "type", visible = true)
@JsonSubTypes({
@JsonSubTypes.Type(value = NumberInputFieldScheme.class, name = "number"),
@JsonSubTypes.Type(value = TextInputFieldScheme.class, name = "text"),
@JsonSubTypes.Type(value = OptionFieldScheme.class, name = "option"),
@JsonSubTypes.Type(value = UserFieldScheme.class, name = "user"),
@JsonSubTypes.Type(value = DeptFieldScheme.class, name = "dept"),
@JsonSubTypes.Type(value = DateFieldScheme.class, name = "date"),
})
@JsonNaming(LowerCamelCaseStrategy.class)
@JsonInclude(Include.NON_NULL)
class FieldScheme {}
```

另外还有个问题，fastjson2是否有考虑把annotation独立一个maven包，有时候maven分模块的时候，定义model类型时只想引入annotation，而不是引入全量。

The issue names no repository files, tests, or entry points. Begin by reviewing fastjson2's current annotation definitions and Maven module layout, then clarify the expected dynamic-type behavior and the desired annotation-only dependency boundary. Done requires a maintainer-approved scope for both requests, with documented compatibility expectations.

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