v2 message format and upgrade to ai sdk v5 (#743)

Co-authored-by: GitHub Action <action@github.com>
Co-authored-by: Liang-Shih Lin <liangshihlin@proton.me>
Co-authored-by: Dominik Engelhardt <dominikengelhardt@ymail.com>
Co-authored-by: Jay V <air@live.ca>
Co-authored-by: adamdottv <2363879+adamdottv@users.noreply.github.com>

packages/tui/sdk/release-please-config.json

@@ -60,8 +60,5 @@
     }
   ],
   "release-type": "go",
-  "extra-files": [
-    "internal/version.go",
-    "README.md"
-  ]
-}
+  "extra-files": ["internal/version.go", "README.md"]
+}