Add release script and release notes generation

.github/workflows/release.yml

@@ -52,3 +52,4 @@ jobs:
         uses: softprops/action-gh-release@v2
         with:
           files: dist/*
+          generate_release_notes: true

scripts/release.sh

@@ -0,0 +1,44 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+if [ $# -ne 1 ]; then
+  echo "Usage: $0 {major|minor|patch}"
+  exit 1
+fi
+
+PART=$1
+
+# Ensure clean working tree
+if ! git diff-index --quiet HEAD --; then
+  echo "Working tree is dirty. Commit or stash changes."
+  exit 1
+fi
+
+git checkout main
+git pull upstream main
+
+uv run bump-my-version bump "$PART"
+uv lock
+git add uv.lock
+git commit --amend --no-edit
+
+VERSION=$(uv run python - <<'EOF'
+import tomllib
+with open("pyproject.toml", "rb") as f:
+    print(tomllib.load(f)["project"]["version"])
+EOF
+)
+
+BRANCH="release-$VERSION"
+
+git checkout -b "$BRANCH"
+git push origin "$BRANCH"
+
+echo
+echo "Release branch created: $BRANCH"
+echo "Open a PR, merge it, then run:"
+echo
+echo "  git checkout main"
+echo "  git pull upstream main"
+echo "  git tag -a v$VERSION -m 'Release v$VERSION'"
+echo "  git push upstream v$VERSION"