ci: adopt PR review workflow

.coderabbit.yaml

@@ -0,0 +1,6 @@
+language: en-US
+
+reviews:
+  profile: chill
+  request_changes_workflow: false
+  poem: false

.github/workflows/ci.yml

@@ -0,0 +1,33 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+permissions:
+  contents: read
+
+concurrency:
+  group: ci-${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  quality:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Install uv
+        uses: astral-sh/setup-uv@v6
+        with:
+          enable-cache: true
+
+      - name: Run test suite
+        run: uv run pytest -q
+
+      - name: Build package
+        run: uv build