chore: add risk disclaimer, CI pipeline, pytest coverage config

- Add risk warning after backtest demo output (survivorship bias, overfitting)
- Add disclaimer section at README end
- Add slippage comment to backtest demo command
- Add CI workflow (test + lint + mypy) for PR/push to main
- Add pytest config with coverage threshold (fail_under=50, current=56%)

.github/workflows/ci.yml

@@ -0,0 +1,33 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.10", "3.12", "3.13"]
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+      - run: pip install -e ".[dev]"
+      - run: python -m pytest tests/unit/ -v --tb=short
+      - run: ruff check src/ tests/
+      - run: ruff format --check src/ tests/
+
+  mypy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.13"
+      - run: pip install -e ".[dev]"
+      - run: mypy src/

README.md

@@ -275,6 +275,7 @@ easy-tdx chanlun SZ 000001 --period 30MIN
 
 ```bash
 easy-tdx backtest SZ 300308 --strategy-file strategies/expma_cross.py --count 2000 --cash 1000000 --adjust QFQ --table
+# 推荐加上 --slippage 0.01 模拟真实滑点（元/股），使回测更贴近实盘
 ```
 
 输出示例：
@@ -289,6 +290,10 @@ easy-tdx backtest SZ 300308 --strategy-file strategies/expma_cross.py --count 20
 交易次数: 24
 ```
 
+> ⚠️ **回测 ≠ 实盘**。以上收益率为历史数据回测结果，包含幸存者偏差和过拟合风险，
+> 不构成投资建议。实际交易需考虑滑点、流动性、涨跌停无法成交等因素。
+> 请在充分理解策略逻辑后谨慎使用。
+
 **全策略批量对比（CLI）：**
 
 `easy-tdx run-all` 一行命令跑完 `strategies/` 下所有策略并排名：
@@ -1431,3 +1436,8 @@ ruff format --check src/ tests/                              # format check
 - 首个正式版本
 - TdxClient / AsyncTdxClient 标准协议客户端
 - K 线、实时报价、分时、逐笔成交、财务数据
+
+## 免责声明
+
+本工具仅供学习和技术研究使用，不构成任何投资建议。使用者应自行承担投资决策的全部风险。
+作者不对因使用本工具导致的任何直接或间接损失负责。

pyproject.toml

@@ -29,3 +29,15 @@ line-length = 100
 
 [tool.ruff.lint]
 select = ["E", "F", "I", "UP"]
+
+[tool.pytest.ini_options]
+testpaths = ["tests"]
+addopts = "--tb=short"
+
+[tool.coverage.run]
+source = ["easy_tdx"]
+omit = ["tests/*"]
+
+[tool.coverage.report]
+fail_under = 50
+show_missing = true