revert: restore working workflow from run #7

.gitea/workflows/syntax-check.yml

@@ -25,18 +25,34 @@ jobs:
         run: |
           git clone --depth 1 "$(echo "${{ gitea.server_url }}" | sed "s|://|://oauth2:${{ gitea.token }}@|")/${{ gitea.repository }}.git" .
           git checkout -q ${{ github.sha }}
+          echo "✓ Checkout complete"
+          ls -la slackecho
 
       - name: Install shellcheck
-        run: sudo apt-get update && sudo apt-get install -y shellcheck
+        run: |
+          echo "Installing shellcheck..."
+          if command -v apk >/dev/null 2>&1; then
+            apk add --no-cache shellcheck
+          elif command -v apt-get >/dev/null 2>&1; then
+            apt-get update && apt-get install -y shellcheck
+          fi
+          echo "✓ shellcheck installed"
 
       - name: Run bash syntax check
-        run: bash -n slackecho
+        run: |
+          echo "Running bash syntax check..."
+          bash -n slackecho
+          echo "✓ Syntax check passed"
 
       - name: Run shellcheck analysis
-        run: shellcheck slackecho
+        run: |
+          echo "Running shellcheck analysis..."
+          shellcheck slackecho
+          echo "✓ Shellcheck passed"
 
       - name: Verify script is executable
         run: |
+          echo "Checking executable permission..."
           if [ -x slackecho ]; then
             echo "✓ slackecho is executable"
           else