refactor(array-tracer): 移除泛型默认值并重命名参数

- 移除 `T extends JsonValue = JsonValue` 中的默认类型参数
- 将接口中的 `item` 参数重命名为 `element` 以提高可读性
- 删除被注释掉的调试代码 `console.log`

tracers.ts/src/tracers/array-tracer.ts

@@ -1,17 +1,17 @@
 import { getTracerContext } from '../context';
 import type { JsonValue } from '../types';
 
-interface ArrayTracerCreateOptions<T extends JsonValue> {
+interface ArrayTracerCreateOptions<T> {
   description?: string;
   initial?: T[];
-  walker?: (builder: { add: (item: T) => void }) => void;
+  walker?: (builder: { add: (element: T) => void }) => void;
 }
 
 interface ArrayTracerMetadata {
   length: number;
 }
 
-export const createArrayTracer = <T extends JsonValue = JsonValue>(
+export const createArrayTracer = <T extends JsonValue>(
   options: ArrayTracerCreateOptions<T>,
 ) => {
   const { description, initial, walker } = options;
@@ -37,8 +37,6 @@ export const createArrayTracer = <T extends JsonValue = JsonValue>(
     return [];
   };
 
-  // console.log(_initial);
-
   const { command } = getTracerContext();
 
   const validateIndex = (index: number) => {