chore(deps): update dependency @ai-sdk/gateway to v2 (#58)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package.json

@@ -18,7 +18,7 @@
     "db:push": "drizzle-kit push"
   },
   "dependencies": {
-    "@ai-sdk/gateway": "^1.0.41",
+    "@ai-sdk/gateway": "^2.0.18",
     "@ai-sdk/vue": "^2.0.108",
     "@iconify-json/logos": "^1.2.10",
     "@iconify-json/lucide": "^1.2.79",