BPMNAdapter: sanitize XML name attributes during import to preserve special-character labels

[Copilot]

BPMN shape labels containing raw special characters (<, >, &) could break XML parsing in BPMNAdapter, causing names to fail to round-trip on import. This aligns bpmn-elements-adapter behavior with the previously fixed adapter path by sanitizing name attributes before parsing.

• Change: import-side sanitization in bpmn-elements-adapter

  • Added sanitizeNameAttributes(xml: string) in packages/extension/src/bpmn-elements-adapter/index.ts.
  • Applied sanitization in adapterXmlIn when input is an XML string, before lfXml2Json(...).
  • Only name="..." attribute values are normalized; existing entities remain intact.

• Change: focused regression coverage

  • Updated packages/extension/src/bpmn-elements-adapter/__tests__/adapter_in.test.js with cases for:
    • raw special chars in names (e.g. A < B & C)
    • mixed escaped/unescaped content (e.g. A &amp; B < C)
  • Assertions verify node text restores correctly after BPMN import.

private sanitizeNameAttributes(xml: string): string {
  return xml.replace(/name="([^"]*)"/g, (_, val) => {
    const safe = val
      .replace(/&(?!#?\w+;)/g, '&')
      .replace(/</g, '&lt;')
      .replace(/>/g, '&gt;')
    return `name="${safe}"`
  })
}

Original prompt

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This section details on the original issue you should resolve

<issue_title>[Bug Report]: BPMNAdapter中各shape的名称中有特殊字符bpmn无法回显问题</issue_title>
<issue_description>### 发生了什么？

[Bug Report]: bpmn流程中各shape的名称中有特殊字符bpmn无法回显bug #2269
#2269

之前报过上面的bug，等上面的bug修复后，本地拉去测试多个版本发现bug仍在存在。经过与VX管理员沟通得到如下信息，按照要求报个BPMNAdapter修复的bug。

BPMNAdapter还没加上这个逻辑，目前只给bpmnAdpter加了，可以提个issue记录一下，节后发个版给BPMNAdapter也支持上

之前用过bpmn.js，相比之下logicflow非常好用，非常感谢！

logicflow/core版本

2.1.5+

logicflow/extension版本

2.1.5+

logicflow/engine版本

No response

浏览器&环境

Chrome</issue_description>

<agent_instructions>现在存在的问题是bpmn里面的转化调用的是bpmnAdapter 按照之前的一次改动已经把节点里面的内容特殊字符转义了，现在要想在bpmnAdapter也进行转义应该在哪里写，现在所有的BPMN里面的内容都在extension包中</agent_instructions>

Comments on the Issue (you are @copilot in this section)

• Fixes [Bug Report]: BPMNAdapter中各shape的名称中有特殊字符bpmn无法回显问题 #2375

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