[Feature]: Cross context operation access check

还没有人认领这个 Issue。

### What would you like?

Add a check to ensure an operation is accessed (calling `.get`) only in the context where it's created.

This would disallow the access to an operation in
- its grandparent context
- its sibling context
- etc

There is an exception - `parallel` operation, in which the branches are always used in its grandparent context.

This check currently exists in TypeScript SDK but not implemented in Java SDK

### Possible Implementation

It's straightforward. The context id of the current thread is in thread local object. We can check that with the operation's context id.

### Is this a breaking change?

#### Yes

### Does this require an RFC?

No

### Additional Context

_No response_

首先找到 TypeScript SDK 中现有的跨上下文访问检查，然后跟踪 Java `.get` 路径和线程本地的当前上下文 ID。为父上下文、兄弟上下文和其他上下文实现等效检查，同时保留所述的 `parallel` 例外，并验证有效的同上下文访问仍然正常工作。

由索引模型根据 Issue 内容生成。