chore: update Gitea workflow summaries to use GITHUB_STEP_SUMMARY, switch to env variables, and add QA notification step

.gitea/workflows/deploy-prod.yml

@@ -160,27 +160,27 @@ jobs:
           set -euo pipefail
           COMMITS_SINCE_LAST=$(git log --oneline --no-decorate ${{ gitea.sha }} -n 20 2>/dev/null || echo "No commit history available")
 
-          cat << 'SUMMARY' >> $GITEA_HOME/workflow/summary
+          cat << 'SUMMARY' >> $GITHUB_STEP_SUMMARY
           ## Production Deployment Successful :rocket:
 
           **Version:** ${{ needs.build-and-push.outputs.app_version }}
           **Commit:** ${{ gitea.sha }}
-          **Image:** ${{ vars.REGISTRY_URL }}/${{ vars.IMAGE_NAME }}:production-latest
+          **Image:** ${{ env.REGISTRY_URL }}/${{ env.IMAGE_NAME }}:production-latest
           **URL:** https://practicas.prod.kubistudio.cloud
 
           ### Recent Commits
           ```
           SUMMARY
 
-          git log --oneline --no-decorate -n 20 ${{ gitea.sha }} 2>/dev/null >> $GITEA_HOME/workflow/summary || true
+          git log --oneline --no-decorate -n 20 ${{ gitea.sha }} 2>/dev/null >> $GITHUB_STEP_SUMMARY || true
 
-          cat << 'SUMMARY' >> $GITEA_HOME/workflow/summary
+          cat << 'SUMMARY' >> $GITHUB_STEP_SUMMARY
           ```
 
           ### Rollback
           If needed, rollback with:
           ```bash
           docker stop cicd-prod && docker rm cicd-prod
-          docker run -d --name cicd-prod --restart unless-stopped -p 8083:80 \${{ vars.REGISTRY_URL }}/\${{ vars.IMAGE_NAME }}:stable
+          docker run -d --name cicd-prod --restart unless-stopped -p 8083:80 \${{ env.REGISTRY_URL }}/\${{ env.IMAGE_NAME }}:stable
           ```
           SUMMARY