fix: update workflow to cd into app directory

app/.gitea/workflows/ci.yml

@@ -20,11 +20,16 @@ jobs:
 
       - name: Install dependencies
         run: |
+          cd app
           python -m pip install --upgrade pip
           pip install -e ".[dev]"
 
       - name: Run tests
-        run: pytest tests/ -v --tb=short
+        run: |
+          cd app
+          pytest tests/ -v --tb=short
 
       - name: Check code formatting
-        run: ruff check env_pro/
+        run: |
+          cd app
+          ruff check env_pro/