Add workflows for closing and deleting branches on PR merge

.gitea/workflows/issue-branch-management.yml

@@ -38,15 +38,3 @@ jobs:
             echo "Branch created: $BRANCH_NAME"
           fi
 
-      - name: Delete branch on issue close
-        if: github.event.action == 'closed'
-        run: |
-          ISSUE_NUMBER=${{ github.event.issue.number }}
-
-          echo "Searching branches for issue-${ISSUE_NUMBER}-*"
-
-          for branch in $(git ls-remote --heads origin | grep "refs/heads/issue-${ISSUE_NUMBER}-" | awk '{print $2}' | sed 's|refs/heads/||'); do
-            echo "Deleting branch: $branch"
-            git push origin --delete "$branch" || echo "Failed to delete $branch"
-          done
-