Add pitch surfacing workflow (monthly + manual dispatch)

.github/workflows/triage-scheduled-tasks.yml

@@ -6,6 +6,7 @@ on:
   schedule:
     - cron: '5 * * * *'   # Hourly — no-response close
     - cron: '0 3 * * *'   # Daily at 3 AM UTC — stale issues
+    - cron: '0 14 1 * *'  # Monthly on the 1st at 2 PM UTC — pitch surfacing
 
 jobs:
   no-response:
@@ -24,3 +25,9 @@ jobs:
       exempt_issue_labels: 'keep'
     permissions:
       issues: write
+
+  pitch-surface:
+    if: github.event.schedule == '0 14 1 * *' || github.event_name == 'workflow_dispatch'
+    uses: desktop/gh-cli-and-desktop-shared-workflows/.github/workflows/pitch-surface-top-issues.yml@main
+    permissions:
+      issues: write