fix: remove stale container before e2e app start

.gitea/workflows/ci.yml

@@ -98,6 +98,7 @@ jobs:
 
       - name: Start app container
         run: |
+          docker rm -f newsarchiver 2>/dev/null || true
           docker run -d --name newsarchiver \
             --network newsarchiver-network \
             -p 5000:5000 \