bump version in workflows

.github/workflows/bump-version.yml

@@ -0,0 +1,56 @@
+name: Bump Patch Version on Merge to Main
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  bump-version:
+    runs-on: ubuntu-latest
+    # Skip if this push was itself the version bump commit (prevents infinite loop)
+    if: "!contains(github.event.head_commit.message, '[skip ci]')"
+
+    permissions:
+      contents: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          # Need full git history and ability to push
+          fetch-depth: 0
+          token: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Bump patch version in pyproject.toml
+        id: bump
+        run: |
+          # Read current version
+          CURRENT=$(grep '^version = ' pyproject.toml | sed 's/version = "\(.*\)"/\1/')
+          echo "Current version: $CURRENT"
+
+          # Split into parts and increment patch
+          MAJOR=$(echo $CURRENT | cut -d. -f1)
+          MINOR=$(echo $CURRENT | cut -d. -f2)
+          PATCH=$(echo $CURRENT | cut -d. -f3)
+          NEW_PATCH=$((PATCH + 1))
+          NEW_VERSION="$MAJOR.$MINOR.$NEW_PATCH"
+          echo "New version: $NEW_VERSION"
+
+          # Write back to pyproject.toml
+          sed -i "s/^version = \"$CURRENT\"/version = \"$NEW_VERSION\"/" pyproject.toml
+
+          # Export for later steps
+          echo "new_version=$NEW_VERSION" >> $GITHUB_OUTPUT
+
+      - name: Commit and push bumped version
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+          git add pyproject.toml
+          git commit -m "chore: bump version to ${{ steps.bump.outputs.new_version }} [skip ci]"
+          git push
+      - name: Tag the release
+        run: |
+          git tag "v${{ steps.bump.outputs.new_version }}"
+          git push origin "v${{ steps.bump.outputs.new_version }}"