chore(deps): upgrade to nextjs 16 (#2203)

* chore(deps): upgrade to nextjs 16

* upgraded fumadocs

* ensure vercel uses bun

* fix build

* fix bui;d

* remove redundant vercel.json

package.json

@@ -26,10 +26,10 @@
     "release": "bun run scripts/create-single-release.ts"
   },
   "overrides": {
-    "react": "19.1.0",
-    "react-dom": "19.1.0",
-    "next": "15.4.8",
-    "@next/env": "15.4.8",
+    "react": "19.2.1",
+    "react-dom": "19.2.1",
+    "next": "16.0.7",
+    "@next/env": "16.0.7",
     "drizzle-orm": "^0.44.5",
     "postgres": "^3.4.5"
   },
@@ -55,14 +55,14 @@
   },
   "devDependencies": {
     "@biomejs/biome": "2.0.0-beta.5",
-    "@next/env": "15.4.8",
+    "@next/env": "16.0.7",
     "@octokit/rest": "^21.0.0",
     "@tailwindcss/typography": "0.5.19",
     "@types/nodemailer": "7.0.4",
     "drizzle-kit": "^0.31.4",
     "husky": "9.1.7",
     "lint-staged": "16.0.0",
-    "turbo": "2.6.2"
+    "turbo": "2.6.3"
   },
   "lint-staged": {
     "*.{js,jsx,ts,tsx,json,css,scss}": [