feat: make server owner of tabs

test/database_migration_test.dart

@@ -94,4 +94,12 @@ void main() {
     expect(await database.select(database.tabEvents).get(), isEmpty);
     expect((await database.select(database.barTabs).get()), hasLength(1));
   });
+
+  test('creates an empty stock adjustment outbox', () async {
+    expect(
+      await database.select(database.stockAdjustmentResults).get(),
+      isEmpty,
+    );
+    expect((await database.select(database.products).get()), hasLength(1));
+  });
 }