Lighten up JSON Schema

[samchon]

The JSON schema generated by the typia.json.application<Types>() function was quite extensive and lax. The first reason is that when IJsonSchema.IAttribute properties are union or array types, they are assigned equally to nested types. And the second reason is the special properties of typia that starts with x-typia-.

Until now, there was no reason for the JSON Schema generated by typia to be lightweight. However, recently, as LLM models with ChatGPT as a topic have become popular, and they have started to use a model that charges by token (word), a problem has arisen. JSON Schema is entered into the ChatGPT (LLM) API and utilized to create various AI-enabled services, but these characteristics of the typia.json.application<Types>() function ultimately resulted in excessive token charges.

Accordingly, this PR first prevented IJsonSchema.IAttribute from being excessively allocated. Second, a new generic argument Surplus was added to the typia.json.application<Types, Purpose, Surplus>() function that can determine whether to use additional properties starting with x-typia-. Of course, the default value for this is false.

/**
 * JSON Schema Application.
 *
 * Creates a JSON schema application which contains both main JSON schemas and
 * components. Note that, all of the named types are stored in the
 * {@link IJsonApplication.components} property for the `$ref` referencing.
 *
 * Also, `typia.json.application()` has two additional generic arguments.
 *
 * The 1st *Purpose* means the purpose determines the JSON schema definition spec.
 * For an example, `ajv` has an extra property "$recursiveRef"  that are not
 * exists in the standard JSON schema definition spec. Otherwise, `swagger`
 * can't identify the tuple definition.
 *
 * The next *Surplus* means whether to allow surplus properties starting with
 * `x-typia-` or not. If `true`, the surplus properties like `x-typia-jsDocTags`
 * would be registered into the JSON schema, otherwise, not.
 *
 * @template Types Tuple of target types
 * @template Purpose Purpose of the JSON schema
 * @template Surplus Allow surplus properties starting with `x-typia-` or not
 * @return JSON schema application
 *
 * @author Jeongho Nam - https://github.com/samchon
 */
export function application<
  Types extends unknown[],
  Purpose extends "ajv" | "swagger" = "swagger",
  Surplus extends boolean = false,
>(): IJsonApplication;

[samchon]

Succeeded to pass every test programs.