ci: add CI (ruff/mypy/pytest) + tag-driven PyPI release workflows

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: vosesoft

.github/workflows/ci.yml

@@ -0,0 +1,32 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+permissions: {}
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.11", "3.12"]
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install uv
+        uses: astral-sh/setup-uv@v5
+        with:
+          enable-cache: true
+      - name: Set up Python ${{ matrix.python-version }}
+        run: uv python install ${{ matrix.python-version }}
+      - name: Sync (with dev extras)
+        run: uv sync --extra dev
+      - name: Ruff
+        run: uv run ruff check src tests
+      - name: Mypy
+        run: uv run mypy src
+      - name: Pytest
+        run: uv run pytest -q

.github/workflows/release.yml

@@ -0,0 +1,59 @@
+# Release pipeline. On a version tag (v*), build the wheel + sdist,
+# publish to PyPI via trusted publishing, and cut a GitHub release.
+#
+# One-time setup before the first tag:
+#   1. Create the PyPI project's trusted publisher
+#      (https://pypi.org/manage/account/publishing/) pointing at this
+#      repo + this workflow under the environment name "pypi". No tokens.
+name: Release
+
+on:
+  push:
+    tags:
+      - "v*"
+
+permissions: {}
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install uv
+        uses: astral-sh/setup-uv@v5
+      - name: Build sdist + wheel
+        run: uv build
+      - uses: actions/upload-artifact@v4
+        with:
+          name: dist
+          path: dist/
+
+  publish-pypi:
+    needs: build
+    runs-on: ubuntu-latest
+    environment: pypi
+    permissions:
+      id-token: write # PyPI trusted publishing
+    steps:
+      - uses: actions/download-artifact@v4
+        with:
+          name: dist
+          path: dist/
+      - name: Publish to PyPI
+        uses: pypa/gh-action-pypi-publish@release/v1
+
+  github-release:
+    needs: publish-pypi
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+      - uses: actions/download-artifact@v4
+        with:
+          name: dist
+          path: dist/
+      - name: Create GitHub release
+        uses: softprops/action-gh-release@v2
+        with:
+          files: dist/*
+          generate_release_notes: true