add test.md. · Pull Request !1 · Bytedance Inc./deer-flow

1. add test.md.
---

Fixes #

## Why

## What changed

## Surface area

- [ ] **Frontend UI** — page / component / setting / interaction under `frontend/`
- [ ] **Backend API** — endpoint / SSE event / request-response shape under `backend/app`
- [ ] **Agents / LangGraph** — agent node, graph wiring, `langgraph.json`, or prompt change
- [ ] **Sandbox** — `docker/` or sandboxed execution
- [ ] **Skills** — change under `skills/`
- [ ] **Dependencies** — new/upgraded entry in `backend/pyproject.toml` or `frontend/package.json` (say what it buys us)
- [ ] **Default behavior change** — changes existing behavior without the user opting in (default model, default setting, data shape)
- [ ] **Docs / tests / CI only** — no runtime behavior change

## Screenshots / Recording

## Bug fix verification

<!-- Skip (delete) this section if this PR is not a bug fix.

Bugs should be encoded as a failing test that goes red before the fix.
     Confirm:
       - Test path that reproduces the bug:
       - Did it go red on `main` and green on this branch? (yes / no)
       - If a red test wasn't cheap to write, explain why and what you did instead. -->

## Validation

## AI assistance

**Tool(s) used:**

**How you used it:**

- [ ] I've read and understand every line of this change and take responsibility for it — it's not unreviewed AI output.

类型	指派人员	状态
审查	长花天门冬	进行中 (0/1人)
测试	长花天门冬	进行中 (0/1人)

Bytedance Inc./deer-flow .gitee-modal { width: 500px !important; }

搜索帮助

Bytedance Inc./deer-flow