优化项目结构

pyproject.toml

@@ -14,6 +14,16 @@ dependencies = [
     "uvicorn[standard]>=0.32.0",
 ]
 
+[build-system]
+requires = ["setuptools>=68.0"]
+build-backend = "setuptools.build_meta"
+
+[tool.setuptools]
+package-dir = {"" = "src"}
+
+[tool.setuptools.packages.find]
+where = ["src"]
+
 [dependency-groups]
 dev = [
     "pytest>=8.3.0",
@@ -21,4 +31,4 @@ dev = [
 
 [tool.pytest.ini_options]
 testpaths = ["tests"]
-pythonpath = ["."]
+pythonpath = ["src"]