refactor: remediate wemake style violations

.github/workflows/quality.yml

@@ -48,9 +48,8 @@ jobs:
       - run: uv sync --locked --all-groups
       - run: uv run ruff check .
       - run: uv run ruff format --check .
-      # Keep the new template boundary WPS-clean while legacy modules are
-      # remediated incrementally rather than silenced with noqa.
-      - run: uv run flake8 --select=WPS,E999 app/templating.py
+      # Enforce WPS rules across the complete application package.
+      - run: uv run pytest tests/test_wps_compliance.py
       - run: uv run mypy app
       - run: uv run pytest
       - name: Validate Compose configuration

.github/workflows/wps.yml

@@ -0,0 +1,43 @@
+name: WPS Style Guide
+
+on:
+  push:
+    branches: [main, refactor/wps-remediation]
+    paths:
+      - 'app/**'
+      - 'tests/**'
+      - 'pyproject.toml'
+      - 'uv.lock'
+      - '.github/workflows/wps.yml'
+  pull_request:
+    branches: [main]
+    types: [opened, synchronize, reopened, ready_for_review]
+    paths:
+      - 'app/**'
+      - 'tests/**'
+      - 'pyproject.toml'
+      - 'uv.lock'
+      - '.github/workflows/wps.yml'
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: ${{ github.event_name == 'pull_request' }}
+
+jobs:
+  wps:
+    runs-on: ubuntu-24.04
+    timeout-minutes: 10
+    steps:
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
+      - uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9 # v9.0.0
+        with:
+          enable-cache: true
+      - run: uv sync --locked --all-groups
+      - name: Enforce WPS across app
+        run: uv run pytest tests/test_wps_compliance.py