Update linter configuration, update code base.

.github/workflows/format_check.yml

@@ -0,0 +1,11 @@
+name: Ruff format
+on: [push, pull_request]
+jobs:
+  ruff:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: chartboost/ruff-action@v1
+        with:
+          args: 'format --check'
+          version: 0.7.0

.github/workflows/lint.yml

@@ -0,0 +1,10 @@
+name: Ruff check
+on: [push, pull_request]
+jobs:
+  ruff:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: chartboost/ruff-action@v1
+        with:
+          version: 0.7.0

.github/workflows/spell_check.yml

@@ -0,0 +1,15 @@
+name: Spell Check
+
+on: [push, pull_request]
+
+jobs:
+  spell-check:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v2
+
+    - name: Run codespell
+      uses: codespell-project/actions-codespell@v2
+