ci: add GitHub automation

Run the quality gate in CI and validate release artifacts with small focused workflows.

Author: yujeongdev

.github/workflows/build.yml

@@ -0,0 +1,35 @@
+name: Build
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+      - uses: actions/setup-python@v6
+        with:
+          python-version-file: .python-version
+      - uses: astral-sh/setup-uv@v7
+        with:
+          enable-cache: true
+      - name: Build wheel and sdist
+        run: make build
+      - name: Smoke-test built wheel
+        run: |
+          python -m venv /tmp/python-template-wheel-test
+          /tmp/python-template-wheel-test/bin/pip install dist/*.whl
+          /tmp/python-template-wheel-test/bin/python-template --help
+      - name: Upload build artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: python-package-dist
+          path: dist/

.github/workflows/ci.yml

@@ -0,0 +1,32 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  quality:
+    name: quality (py${{ matrix.python-version }})
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ['3.11', '3.12', '3.13']
+    steps:
+      - uses: actions/checkout@v6
+      - uses: actions/setup-python@v6
+        with:
+          python-version: ${{ matrix.python-version }}
+      - uses: astral-sh/setup-uv@v7
+        with:
+          enable-cache: true
+      - name: Sync dependencies
+        run: uv sync --group dev --frozen
+      - name: Run quality gate
+        run: make check

.github/workflows/release.yml

@@ -0,0 +1,29 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - 'v*'
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  release-artifacts:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+      - uses: actions/setup-python@v6
+        with:
+          python-version-file: .python-version
+      - uses: astral-sh/setup-uv@v7
+        with:
+          enable-cache: true
+      - name: Build release artifacts
+        run: make build
+      - name: Upload release artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: python-template-release-${{ github.ref_name }}
+          path: dist/