feat(spotlight): add default search engine (#1807)

packages/db/migrations/sqlite/0019_steady_darkhawk.sql

@@ -0,0 +1 @@
+ALTER TABLE `user` ADD `default_search_engine_id` text REFERENCES search_engine(id);

packages/db/migrations/sqlite/meta/_journal.json

@@ -134,6 +134,13 @@
       "when": 1735593831501,
       "tag": "0018_cheerful_tattoo",
       "breakpoints": true
+    },
+    {
+      "idx": 19,
+      "version": "6",
+      "when": 1735651175378,
+      "tag": "0019_steady_darkhawk",
+      "breakpoints": true
     }
   ]
 }