[chiragjangiir]

Closes #114

Problem

As reported in #114, the test/ directory and its fixtures were missing from the published PyPI source distribution (sdist), causing pytest runs directly from the sdist tarball (e.g., in downstream package maintainer pipelines) to collect 0 items and fail.

Solution

Configured poetry's include table in pyproject.toml to package test into sdist distributions:

[tool.poetry]
include = [
    { path = "test", format = "sdist" },
]

Verification

1. Built sdist with python3 -m build --sdist:
   • Verified with tar -tzf dist/mediafile-*.tar.gz that test/__init__.py, test/_common.py, and all test/rsrc/* media fixtures are present.
2. Built wheel with python3 -m build --wheel:
   • Verified with unzip -l dist/*.whl that the binary wheel remains lean and contains only mediafile package code, license, and metadata without test bloat.