ci/templates: use parent_id field in template to properly link issues

Author: Ciznia

.github/workflows/issue-linker.yml

@@ -0,0 +1,98 @@
+name: Auto-link sub-issue to parent issue
+
+on:
+  issues:
+    types: [opened, labeled]
+  workflow_dispatch:
+    inputs:
+      issue_number:
+        description: 'Issue number to link to parent'
+        required: true
+        type: number
+      parent_number:
+        description: 'Parent issue number'
+        required: false
+        type: number
+
+
+jobs:
+  link-to-parent:
+    runs-on: ubuntu-latest
+    if: |
+      (github.event_name == 'workflow_dispatch')
+      || (github.event_name == 'issues' && (
+          contains(toJson(github.event.issue.labels.*.name), '"0. layer: task"')
+          contains(toJson(github.event.issue.labels.*.name), '"0. layer: story"')
+        ))
+    permissions:
+      issues: write
+    steps:
+      - name: Link to Parent issue as Sub-issue
+        uses: actions/github-script@v7
+        with:
+          script: |
+            let issueNumber, issueData;
+            
+            if (context.eventName === 'workflow_dispatch') {
+              issueNumber = '${{ inputs.issue_number }}';
+              
+              
+              const response = await github.rest.issues.get({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                issue_number: issueNumber
+              });
+              issueData = response.data;
+            } else {
+              issueData = context.payload.issue;
+              issueNumber = issueData?.number;
+            }
+            
+            const body = issueData.body || '';
+            const childId = issueData.node_id;
+            
+            const parentMatch = body.match(/Parent Story[\s\S]*?#(\d+)/i)
+              || body.match(/Parent Epic[\s\S]*?#(\d+)/i);
+            
+            if (!parentMatch) {
+              console.log('No parent story found, skipping.');
+              return;
+            }
+            
+            const parentNumber = '${{ inputs.parent_number }}' || parseInt(parentMatch[1]);
+            const owner = context.repo.owner;
+            const repo = context.repo.repo;
+            
+            console.log(`Linking task #${issueNumber} to parent #${parentNumber}`);
+            
+            try {
+              const parentResponse = await github.rest.issues.get({
+                owner,
+                repo,
+                issue_number: parentNumber
+              });
+              const parentNodeId = parentResponse.data.node_id;
+              
+              const mutation = `
+                mutation {
+                  addSubIssue(input: {
+                    issueId: "${parentNodeId}"
+                    subIssueId: "${childId}"
+                  }) {
+                    issue {
+                      number
+                    }
+                  }
+                }
+              `;
+              
+              await github.graphql(mutation);
+              
+              console.log(`Successfully linked #${issueNumber} as sub-issue of #${parentNumber}`);
+            } catch (error) {
+              console.error(`Error linking to parent: ${error.message}`);
+              
+              if (error.status === 404) {
+                console.error(`Parent issue #${parentNumber} not found`);
+              }
+            }