feat(SaleResource): redirect to client after sale creation

When a client is associated with the sale, redirect to the client's view page with the sales relation manager active instead of the default list page. This improves the user workflow by keeping the context focused on the client.

app/Filament/Resources/SaleResource/Pages/CreateSale.php

@@ -89,8 +89,12 @@ class CreateSale extends CreateRecord
         return $record;
     }
 
-    protected function afterCreate(): void
+    protected function getRedirectUrl(): string
     {
-        $branch = Branch::find($this->data['branch_id']);
+        $client = $this->getClient();
+        if (! $client) {
+            return parent::getRedirectUrl();
+        }
+        return ClientResource::getUrl('view', ['record' => $client->id]).'?activeRelationManager=3';
     }
 }