feat: add project scaffolding with pyproject.toml and src layout

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

pyproject.toml

@@ -0,0 +1,16 @@
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[project]
+name = "jianda-proxy"
+version = "0.1.0"
+description = "HTTP proxy for Gitea LFS — rewrites Host header to bypass ICP domain block"
+requires-python = ">=3.8"
+dependencies = []
+
+[project.scripts]
+jianda-proxy = "jianda_proxy.cli:main"
+
+[tool.hatch.build.targets.wheel]
+packages = ["src/jianda_proxy"]

src/jianda_proxy/__init__.py

@@ -0,0 +1 @@
+__version__ = "0.1.0"