Fix milestone sharing previews and publisher recovery

src/app/(main)/api/internal/social-milestones/route.ts

@@ -20,6 +20,12 @@ export async function GET(request: NextRequest) {
   if (!isAuthorized(request)) return NextResponse.json({ error: 'Unauthorized' }, { status: 401 });
   const dryRun = request.nextUrl.searchParams.get('dryRun') === 'true';
   const now = Date.now();
+  // A worker can be interrupted after claiming a row. Surface that state as a
+  // retryable failure instead of leaving the dashboard in "processing" forever.
+  await db.socialMilestone.updateMany({
+    where: { brandStatus: 'processing', claimedAt: { lt: new Date(now - 5 * 60 * 1000) } },
+    data: { brandStatus: 'failed', brandPostError: 'The publisher was interrupted before it confirmed the post. Please retry.' },
+  });
   const approvalNotBefore = new Date(now - approvalDelayHours() * 60 * 60 * 1000);
   const milestone = await db.socialMilestone.findFirst({
     where: { brandStatus: 'approved', brandApprovedAt: { lte: approvalNotBefore } },