fix: add debug step to check SSH secret

.gitea/workflows/deploy-dev.yml

@@ -9,12 +9,28 @@ jobs:
     runs-on: ubuntu-latest
     
     steps:
+      - name: Setup SSH Key
+        run: |
+          echo "Checking if SSH_PRIVATE_KEY secret exists..."
+          if [ -z "${{ secrets.SSH_PRIVATE_KEY }}" ]; then
+            echo "ERROR: SSH_PRIVATE_KEY secret is empty!"
+            exit 1
+          fi
+          mkdir -p ~/.ssh
+          echo "${{ secrets.SSH_PRIVATE_KEY }}" > ~/.ssh/deploy_key
+          chmod 600 ~/.ssh/deploy_key
+          echo "SSH key file created. Checking format..."
+          head -1 ~/.ssh/deploy_key
+          tail -1 ~/.ssh/deploy_key
+          wc -l ~/.ssh/deploy_key
+          ssh-keyscan -H ${{ secrets.DEV_HOST }} >> ~/.ssh/known_hosts 2>/dev/null || true
+      
       - name: Deploy to Dev Server
         uses: appleboy/ssh-action@v1.0.0
         with:
           host: ${{ secrets.DEV_HOST }}
           username: ${{ secrets.DEV_USER }}
-          key: ${{ secrets.SSH_PRIVATE_KEY }}
+          key_path: ~/.ssh/deploy_key
           use_insecure_cipher: true
           debug: true
           script: |
@@ -41,7 +57,7 @@ jobs:
         with:
           host: ${{ secrets.DEV_HOST }}
           username: ${{ secrets.DEV_USER }}
-          key: ${{ secrets.SSH_PRIVATE_KEY }}
+          key_path: ~/.ssh/deploy_key
           use_insecure_cipher: true
           debug: true
           script: |