feat: add PR checks workflow for pre-commit validation

.github/workflows/pr-checks.yml

@@ -0,0 +1,37 @@
+name: PR Checks
+
+on:
+  pull_request:
+  workflow_dispatch:
+
+concurrency:
+  group: pr-checks-${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  pre-commit:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+          cache: pip
+          cache-dependency-path: |
+            pyproject.toml
+            .pre-commit-config.yaml
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          python -m pip install pre-commit
+          python -m pip install -e .[dev]
+
+      - name: Run pre-commit
+        run: pre-commit run --all-files