Add workflows for closing and deleting branches on PR merge

.gitea/workflows/pr-close-issue.yml

@@ -0,0 +1,35 @@
+name: PR Close Issue (Template)
+
+on:
+  workflow_call:
+    secrets:
+      GITHUB_TOKEN:
+        required: true
+
+jobs:
+  close-issue:
+    runs-on: ubuntu-latest
+    if: github.event.pull_request.merged == true
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Extract issue number and close issue
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          BRANCH_NAME="${{ github.event.pull_request.head.ref }}"
+          echo "Branch name: $BRANCH_NAME"
+
+          # Extract issue number from branch name (format: issue-122-issue-title)
+          if [[ $BRANCH_NAME =~ ^issue-([0-9]+)- ]]; then
+            ISSUE_NUMBER="${BASH_REMATCH[1]}"
+            echo "Found issue number: $ISSUE_NUMBER"
+
+            # Close the issue
+            gh issue close "$ISSUE_NUMBER" --comment "Automatically closed by PR #${{ github.event.pull_request.number }}"
+            echo "Issue #$ISSUE_NUMBER has been closed"
+          else
+            echo "Branch name does not match expected format (issue-NUMBER-title)"
+          fi