[Bug Report]: `vueNodesMap` is a global singleton, causing component overwrite in nested LogicFlow scenarios

[EralChen]

What happened?

Reproduction

Bug

vueNodesMap in registry.ts is a module-level global object, but register() accepts a per-instance lf parameter. When the same node type is registered for multiple LogicFlow instances (e.g., nested sub-flows), the later register() call overwrites the earlier entry in vueNodesMap.

// registry.ts (current)
export const vueNodesMap = {} // ← global singleton

export function register(config, lf) {
  vueNodesMap[type] = { component, effect } // ← global overwrite!
  lf.register({ type, view, model })        // ← per-instance (correct)
}

lf.register() correctly scopes the Model/View to the specific LogicFlow instance, bu

1. Create an outer LogicFlow instance, register node type A — its Vue component captures context A
2. Create an inner (nested) LogicFlow instance, register the same type A — its Vue component captures context B, and overwrites vueNodesMap['A']
3. Delete/destroy the inner LogicFlow instance — context B is now stale/empty
4. Add a new node of type A to the outer LogicFlow
5. Result: The outer LogicFlow creates the node using the stale component from the destroyed inner instance (context B), instead of the original component (context A)

Concrete scenario

This happens with a Loop Node that embeds a sub-flow (inner LogicFlow). The loop's sub-flow registers the same node types as the outer flow. When the loop node is deleted from the canvas, all new nodes created afterward use the orphaned inner components — breaking rendering (e.g., missing icons, empty slot data).

Expected Behavior

Each LogicFlow instance should maintain its own component mapping, or register() should not overwrite existing entries when called from a nested/child context.

Core Version

2.1.x

Extension Version

1.x.x

Engine Version

No response

What browsers are you seeing the problem on?

No response

[github-actions]

由于所提供信息的不充分，该 issue 被暂时关闭了。请修改 issue 以提供最小可复现示例(可以通过以下方式：1. 在任意在线编码平台如 codesanbox 编写示例。将其保存到自己空间，然后贴上链接。2. 在自己 github 中创建一个最简单的示例，然后贴上 github 链接。3. 删除项目中的 node_modules 部分，打包项目，并拖拽到 issue 输入框中上传（或提供远程可下载地址）)来重启 issue。