Create issue-link-checker.yml

.github/workflows/issue-link-checker.yml

@@ -0,0 +1,20 @@
+name: PR Issue Link Checker
+
+on:
+  pull_request:
+    types: [opened, edited, reopened]
+
+jobs:
+  check-issue-link:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Check for Issue Link in PR
+      uses: actions/github-script@v4
+      with:
+        github-token: ${{ secrets.GITHUB_TOKEN }}
+        script: |
+          const issuePattern = /#(\d+)/;
+          const prBody = context.payload.pull_request.body;
+          if (!issuePattern.test(prBody)) {
+            core.setFailed("PR must reference an issue.");
+          }