fix: add setuptools package discovery config to pyproject.toml

Newer setuptools (Linux) raises error when multiple top-level dirs are found.
Explicitly include only rag_eval/apps/webapp and exclude runtime data dirs.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

pyproject.toml

@@ -17,3 +17,8 @@ dependencies = [
     "pydantic-settings>=2.14.1",
     "ragas==0.4.3",
 ]
+
+[tool.setuptools.packages.find]
+# 只打包源码目录，排除运行时产生的数据目录
+include = ["rag_eval*", "apps*", "webapp*"]
+exclude = ["logs*", "outputs*", "datasets*", "configs*", "scenarios*", "scripts*", "tests*"]