Privileged issue

• I am a LangGraph maintainer, or was asked directly by a LangGraph maintainer to create an issue here.

Issue Content

When interrupting with interrupt(value: str), users should be able to specify an InputSchema that enforces the format the interrupt can be resumed with.

Expected behaviors:

• If a resume map is provided and the response format does not match InputSchema, re-raise the interrupt
• If a null resume is provided and there is one pending interrupt, and the response format does not match, re-raise the interrupt
• If the response format does match InputSchema, resume the interrupt