Add GitHub Actions workflow for linting and compile checks

.gitea/workflows/check.yml

@@ -0,0 +1,26 @@
+name: Lint & Compile Check
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.12'
+          
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+          
+      - name: Check syntax (Compile check)
+        run: python -m py_compile monitor.py