Add PyPI release workflow triggered on version tag

.github/workflows/release.yml

@@ -0,0 +1,54 @@
+name: Publish to PyPI
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+jobs:
+  build:
+    name: Build distribution
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install uv
+        uses: astral-sh/setup-uv@v5
+
+      - name: Verify tag matches pyproject.toml version
+        run: |
+          TAG_VERSION="${GITHUB_REF_NAME#v}"
+          PROJECT_VERSION=$(grep -m1 '^version = ' pyproject.toml | sed -E 's/version = "(.*)"/\1/')
+          if [ "$TAG_VERSION" != "$PROJECT_VERSION" ]; then
+            echo "Tag v$TAG_VERSION does not match pyproject.toml version $PROJECT_VERSION"
+            exit 1
+          fi
+          echo "Version check passed: $PROJECT_VERSION"
+
+      - name: Build sdist and wheel
+        run: uv build
+
+      - name: Upload distribution artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: dist
+          path: dist/
+
+  publish:
+    name: Publish to PyPI
+    needs: build
+    runs-on: ubuntu-latest
+    environment:
+      name: pypi
+      url: https://pypi.org/p/orca_core
+    permissions:
+      id-token: write
+    steps:
+      - name: Download distribution artifacts
+        uses: actions/download-artifact@v4
+        with:
+          name: dist
+          path: dist/
+
+      - name: Publish to PyPI
+        uses: pypa/gh-action-pypi-publish@release/v1