Create frozen v0.1.1 release

.github/workflows/release-v0.1.1.yml

@@ -0,0 +1,72 @@
+name: Release v0.1.1
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - ".github/workflows/release-v0.1.1.yml"
+
+permissions:
+  contents: write
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check out the frozen release commit
+        uses: actions/checkout@v4
+        with:
+          ref: 86851d9ed92a8f6a0850e347ddf1c2d9ae4fdbbc
+          fetch-depth: 0
+
+      - name: Verify the frozen target
+        run: test "$(git rev-parse HEAD)" = "86851d9ed92a8f6a0850e347ddf1c2d9ae4fdbbc"
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+
+      - name: Install build tools
+        run: python -m pip install --upgrade build pytest
+
+      - name: Run complete test suite
+        run: python -m pytest -q
+
+      - name: Build wheel and source archive
+        run: python -m build
+
+      - name: Install and verify built wheel
+        run: |
+          python -m pip install --force-reinstall dist/*.whl
+          cd "${RUNNER_TEMP}"
+          python - <<'PY'
+          from commit_gate_core import CommitGate, __version__
+          from commit_gate_core.scenario_runner import run_scenario_001
+
+          assert CommitGate.__name__ == "CommitGate"
+          assert __version__ == "0.1.1"
+          assert run_scenario_001()["downstream_send"] is False
+          print("Release package: PASS")
+          PY
+
+      - name: Create frozen tag and GitHub release
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          if gh api "repos/${GITHUB_REPOSITORY}/git/ref/tags/v0.1.1" >/dev/null 2>&1; then
+            echo "Tag v0.1.1 already exists; refusing to overwrite."
+            exit 1
+          fi
+          if gh release view v0.1.1 >/dev/null 2>&1; then
+            echo "Release v0.1.1 already exists; refusing to overwrite."
+            exit 1
+          fi
+          git tag v0.1.1 86851d9ed92a8f6a0850e347ddf1c2d9ae4fdbbc
+          git push origin refs/tags/v0.1.1
+          gh release create v0.1.1 dist/* \
+            --verify-tag \
+            --title "commit-gate-core v0.1.1" \
+            --notes-file RELEASE_NOTES.md