fix: remove problematic docker maintenance step from prepare job

.gitea/workflows/deploy.yml

@@ -37,13 +37,6 @@ jobs:
     container:
       image: catthehacker/ubuntu:act-latest
     steps:
-      - name: 🧹 Maintenance (High Density Cleanup)
-        shell: bash
-        run: |
-          echo "Purging old build layers and dangling images..."
-          docker image prune -f
-          docker builder prune -f --filter "until=6h"
-
       - name: Checkout repository
         uses: actions/checkout@v4
         with:
@@ -280,7 +273,7 @@ jobs:
           GATEKEEPER_ORIGIN="$NEXT_PUBLIC_BASE_URL/gatekeeper"
 
           # Generate Environment File
-          echo "🔍 Verifying Sentry DSN: ${SENTRY_DSN:0:12}... (masked)"
+          echo "🔍 Verifying Sentry DSN presence..."
           cat > .env.deploy << EOF
           # Generated by CI - $TARGET
           IMAGE_TAG=$IMAGE_TAG