feat(grid): implement product streaming with JSON chunks for grid client

src/features/grid/api/save-draft-changes.ts

@@ -5,6 +5,7 @@ import { sessionSnapshots } from "@/db/schema";
 import { eq, desc } from "drizzle-orm";
 import { z } from "zod";
 import { auth } from "@/lib/auth";
+import { invalidateGridRowsCache } from "./get-product-rows";
 
 const SaveDraftsSchema = z.object({
     codeFournisseur: z.string(),
@@ -69,6 +70,8 @@ export async function saveDraftChanges(
             type: "snapshot",
         });
 
+        invalidateGridRowsCache(codeFournisseur);
+
         return { success: true, saved: changes.length };
     } catch (err) {
         const msg = err instanceof Error ? err.message : "Unknown error";