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.github/workflows/python-tests.yml

@@ -7,6 +7,28 @@ on:
     branches: [ main, master ]
 
 jobs:
+  quality:
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+
+      - name: Install quality tools
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r requirements.txt
+          pip install xenon
+
+      - name: Check Python files encoding (no UTF-8 BOM)
+        run: python scripts/check_no_bom.py mjr_am_backend mjr_am_shared tests __init__.py scripts
+
+      - name: Complexity gate (stage A)
+        run: python -m xenon -b F -m D -a C mjr_am_backend mjr_am_shared tests __init__.py
+
   test:
     runs-on: ubuntu-22.04
     strategy: