refactor: Use dynamic versioning via importlib.metadata

- Replace hardcoded __version__ with dynamic version from package metadata
- Update version-check workflow to verify installed package version
- Eliminates need to manually sync __version__ with pyproject.toml

Now when you run 'uv version --bump patch', the __version__ in
__init__.py automatically reflects the new version.

Author: github-actions

.github/workflows/version-check.yml

@@ -34,13 +34,18 @@ jobs:
           PYPROJECT_VERSION=$(uv version | awk '{print $2}')
           echo "pyproject.toml version: $PYPROJECT_VERSION"
 
-          # Get version from __init__.py (match only the assignment line, not __all__)
-          INIT_VERSION=$(grep -E '^__version__ = ' src/ryandata_address_utils/__init__.py | sed 's/__version__ = "\(.*\)"/\1/')
-          echo "__init__.py version: $INIT_VERSION"
+          # Install package to verify dynamic version works
+          uv sync
+
+          # Get version from installed package (dynamic versioning)
+          PACKAGE_VERSION=$(uv run python -c "from ryandata_address_utils import __version__; print(__version__)")
+          echo "Package version: $PACKAGE_VERSION"
 
           # Compare versions
-          if [ "$PYPROJECT_VERSION" != "$INIT_VERSION" ]; then
+          if [ "$PYPROJECT_VERSION" != "$PACKAGE_VERSION" ]; then
             echo "❌ Version mismatch!"
+            echo "pyproject.toml: $PYPROJECT_VERSION"
+            echo "Package: $PACKAGE_VERSION"
             exit 1
           fi
 

src/ryandata_address_utils/__init__.py

@@ -106,7 +106,11 @@
 )
 from ryandata_address_utils.validation.base import RyanDataValidationBase, ValidationBase
 
-__version__ = "0.7.2"
+# Dynamic version from package metadata (set in pyproject.toml)
+# This eliminates the need to manually sync versions
+from importlib.metadata import version as _get_version
+
+__version__ = _get_version("ryandata-address-utils")
 __package_name__ = "ryandata-address-utils"
 
 __all__ = [