More sync cleanup and fixing

apps/api/src/server.ts

@@ -147,7 +147,7 @@ export const app = new Elysia()
                     })
                     // Per-product sync
                     .post("/:printfulProductId", async ({ params }) => {
-                        if (!await productSyncer.sync(params.printfulProductId))
+                        if (!await productSyncer.sync({ printfulProductIdsFilter: [params.printfulProductId] }))
                             throw status(409, "Sync already in progress");
                     }, { params: z.object({ printfulProductId: z.coerce.number() }) }),
             )
@@ -175,7 +175,7 @@ export const app = new Elysia()
             case Printful.Webhook.Event.ProductUpdated: {
                 const printfulProduct = payload.data.sync_product;
                 log.info({ productId: printfulProduct.id }, "printful webhook: product updated");
-                await productSyncer.sync(printfulProduct.id);
+                await productSyncer.sync({ printfulProductIdsFilter: [printfulProduct.id] });
                 break;
             }
             case Printful.Webhook.Event.ProductDeleted: {