[codex] Forward LangGraph submit run options

[blove]

Summary

• Forward LangGraph run options from agent.submit() through the stream manager and HTTP transport.
• Normalize resume convenience options into command.resume so documented resume flows use the SDK command payload.
• Expand submit option types and update docs/generated agent API docs for checkpoint/time-travel usage.

Root Cause

The public docs showed checkpoint and resume submit options, but the framework only accepted/forwarded signal and multitaskStrategy. Checkpoint, command, metadata, durability, interrupt, and stream options were dropped before reaching the LangGraph SDK.

Validation

• npx vitest run --config vite.config.mts libs/langgraph/src/lib/transport/fetch-stream.transport.spec.ts --reporter=verbose
• npx nx test langgraph
• npx nx lint langgraph (0 errors, existing warnings remain)
• npx nx build langgraph
• npx nx lint website
• npx nx build website
• git diff --check

[vercel]

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Project	Deployment	Actions	Updated (UTC)
cacheplane	Ready	Preview, Comment	May 2, 2026 5:00am