Restrict sdist to package contents; ignore local tool config; 0.2.2 (#22)

The sdist now ships only the package, tests, and metadata (hatchling
only-include) instead of the full project tree.

Signed-off-by: Kovács Ádám <adaam.ko@gmail.com>

Author: adaamko

.gitignore

@@ -234,3 +234,6 @@ rules_*.html
 
 savings_report.html
 savings*.html
+
+# Local tool configuration
+.claude/

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "rulechef"
-version = "0.2.1"
+version = "0.2.2"
 description = "Learn rule-based models from examples and LLM interactions"
 requires-python = ">=3.10"
 readme = {file = "README.md", content-type = "text/markdown"}
@@ -84,6 +84,10 @@ rulechef = "rulechef.cli:main"
 rulechef-report = "rulechef.report:main"
 rulechef-savings = "rulechef.savings:main"
 
+[tool.hatch.build.targets.sdist]
+# Ship only the package and its metadata in the sdist.
+only-include = ["rulechef", "tests", "README.md", "LICENSE", "pyproject.toml"]
+
 [tool.hatch.build.targets.wheel]
 packages = ["rulechef"]