fix(vercel): add next to root devDependencies for framework detection

Vercel requires Next.js in the root package.json to detect the framework,
even in a monorepo where apps have their own dependencies.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: Krigs

.claude/settings.local.json

@@ -11,7 +11,8 @@
       "Bash(git restore:*)",
       "Bash(git commit:*)",
       "Bash(git push)",
-      "Bash(git add:*)"
+      "Bash(git add:*)",
+      "Bash(pnpm install:*)"
     ],
     "deny": [],
     "ask": []

odin-framework/package.json

@@ -10,6 +10,7 @@
   },
   "devDependencies": {
     "@types/node": "^22.15.3",
+    "next": "^16.0.1",
     "prettier": "^3.6.2",
     "turbo": "^2.6.1",
     "typescript": "5.9.2"