实现第一版内存清洗核心

落实不可变数据契约、组件基类、原子修改执行器与顺序流水线。补充稳定性复查、审计记录、测试和当前机制文档。

pyproject.toml

@@ -0,0 +1,37 @@
+[build-system]
+requires = ["hatchling>=1.27,<2"]
+build-backend = "hatchling.build"
+
+[project]
+name = "mdpolish"
+version = "0.1.0"
+description = "Deterministic in-memory core for composing Markdown cleaning components"
+requires-python = ">=3.11"
+dependencies = []
+
+[project.optional-dependencies]
+dev = [
+    "mypy>=1.15,<2",
+    "pytest>=8.3,<10",
+    "ruff>=0.11,<1",
+]
+
+[tool.hatch.build.targets.wheel]
+packages = ["src/mdpolish"]
+
+[tool.pytest.ini_options]
+addopts = "-ra"
+testpaths = ["tests"]
+
+[tool.ruff]
+target-version = "py311"
+line-length = 120
+extend-exclude = ["data", "reference"]
+
+[tool.ruff.lint]
+select = ["B", "E", "F", "I", "RUF", "UP"]
+ignore = ["RUF001"]
+
+[tool.mypy]
+python_version = "3.11"
+strict = true