test: add mypy.yml

Author: iRingil

.github/workflows/mypy.yml

@@ -0,0 +1,29 @@
+name: Mypy
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    branches: [ "master" ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.13"]
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          cd backend/src
+          if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+          if [ -f requirements-dev.txt ]; then pip install -r requirements-dev.txt; fi
+      - name: Test with Mypy
+        run: |
+          mypy .