Add code checks to PRs

.github/actions/init-environment/action.yml

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+name: "Init Environment"
+description: "Initialize environment for tests"
+runs:
+  using: "composite"
+  steps:
+      - name: Checkout actions
+        uses: actions/checkout@v4
+
+      - id: setup-python
+        name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install and configure Poetry
+        uses: snok/install-poetry@v1
+        with:
+          virtualenvs-create: true
+          virtualenvs-in-project: true
+          installer-parallel: true
+
+      - name: Load cached venv
+        id: cached-poetry-dependencies
+        uses: actions/cache@v4
+        with:
+          path: .venv
+          key: venv-${{ runner.os }}-${{ steps.setup-python.outputs.python-version }}-${{ hashFiles('**/poetry.lock') }}
+
+      - name: Install dependencies
+        if: steps.cached-poetry-dependencies.outputs.cache-hit != 'true'
+        run: poetry install --no-interaction --with test --with dev --with docs --all-extras
+        shell: bash
+      - name: Activate venv 
+        run: |
+          source $VENV
+          echo PATH=$PATH >> $GITHUB_ENV
+        shell: bash

.github/workflows/code-checks.yml

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+name: Code Checks
+
+on:
+  push:
+    branches: [ "main"]
+  pull_request:
+    branches: [ "main"]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  format:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.11"]
+    steps:
+      - name: Checkout actions
+        uses: actions/checkout@v4
+      - name: Init environment
+        uses: ./.github/actions/init-environment
+      - name: Run formatter
+        run: make check/format
+  type-check:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: [ "3.11" ]
+    steps:
+      - name: Checkout actions
+        uses: actions/checkout@v4
+      - name: Init environment
+        uses: ./.github/actions/init-environment
+      - name: Run type checker
+        run: make check/types
+  lint:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: [ "3.11" ]
+    steps:
+      - name: Checkout actions
+        uses: actions/checkout@v4
+      - name: Init environment
+        uses: ./.github/actions/init-environment
+      - name: Run linter
+        run: make check/lint
+  spell-check:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: [ "3.11" ]
+    steps:
+      - name: Checkout actions
+        uses: actions/checkout@v4
+      - name: Init environment
+        uses: ./.github/actions/init-environment
+      - name: Run linter
+        run: make check/spell