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JSON 校验与修复：定位语法错误行列，自动修复注释/尾逗号/单引号
istone校验 JSON 语法并定位错误，自动修复常见格式错误（注释/尾逗号/单引号）。纯 Node 实现。
| 工具 | 作用 |
|---|---|
| validate_json | 校验 + 错误定位（行列） |
| fix_json | 修复注释/尾逗号/单引号 |
dsh plugin add dsh-json-validate安装后在 profile 的 package.json 的 dsh.profile.bundles 中加入 "dsh-json-validate"。
这段 JSON 报错了，帮我看看哪里有问题
→ 调用 validate_json(text="...")