feat(F-177): completed feature

project/src/modules/orders/api/orders.routes.ts

@@ -180,6 +180,59 @@ export async function registerOrdersRoutes(
     return reply.send({ items: items.map(serializeOrder), total });
   });
 
+  const staleNotificationsSchema: FastifySchema = {
+    tags: ['Orders'],
+    summary: 'List stale order notifications (admin)',
+    querystring: {
+      type: 'object',
+      properties: {
+        hours: { type: 'integer', minimum: 1, maximum: 168, default: 24 },
+        limit: { type: 'integer', minimum: 1, maximum: 50, default: 20 },
+      },
+    },
+    response: { 401: errorSchema, 403: errorSchema },
+  };
+  app.get('/orders/notifications/stale', { schema: staleNotificationsSchema }, async (request, reply) => {
+    const user = await deps.authenticate(request);
+    requireRole(user, 'admin');
+    const query = request.query as { hours?: string; limit?: string };
+    const hours = Math.min(Math.max(Number(query.hours ?? 24) || 24, 1), 168);
+    const limit = Math.min(Math.max(Number(query.limit ?? 20) || 20, 1), 50);
+    const result = await deps.pool.query<{
+      id: string;
+      state: 'PENDING' | 'SHIPPED';
+      total_cents: number;
+      customer_email: string | null;
+      state_changed_at: Date;
+      age_hours: number;
+      total_count: number;
+    }>(
+      `SELECT o.id, o.state, o.total_cents, u.email AS customer_email,
+              o.state_changed_at,
+              FLOOR(EXTRACT(EPOCH FROM (now() - o.state_changed_at)) / 3600)::int AS age_hours,
+              COUNT(*) OVER()::int AS total_count
+       FROM orders_orders o
+       LEFT JOIN identity_users u ON u.id = o.user_id
+       WHERE o.state IN ('PENDING', 'SHIPPED')
+         AND o.state_changed_at <= now() - ($1::int * interval '1 hour')
+       ORDER BY o.state_changed_at ASC
+       LIMIT $2`,
+      [hours, limit],
+    );
+    return reply.send({
+      total: result.rows[0]?.total_count ?? 0,
+      thresholdHours: hours,
+      items: result.rows.map((row) => ({
+        id: row.id,
+        state: row.state,
+        totalCents: row.total_cents,
+        customerEmail: row.customer_email,
+        stateChangedAt: row.state_changed_at.toISOString(),
+        ageHours: row.age_hours,
+      })),
+    });
+  });
+
   const getOrderAdminSchema: FastifySchema = {
     tags: ['Orders'],
     summary: 'Get order (admin)',