Upgrade to Next 16 and clear every dependency advisory

CLAUDE.md

@@ -4,20 +4,20 @@ This file provides guidance to Claude Code (claude.ai/code) when working with co
 
 ## Project Overview
 
-BrainDAO UI is a Next.js 15 landing page for BrainDAO, the governing DAO powering the IQ ecosystem. It showcases the IQ token, ecosystem products (IQ.wiki, IQ Dashboard, IQAI, Sophia), and team information.
+BrainDAO UI is a Next.js 16 landing page for BrainDAO, the governing DAO powering the IQ ecosystem. It showcases the IQ token, ecosystem products (IQ.wiki, IQ Dashboard, IQAI, Sophia), and team information.
 
 ## Commands
 
 ```bash
 pnpm dev          # Start development server (http://localhost:3000)
 pnpm build        # Production build
 pnpm lint         # Run lint-staged (Biome)
-pnpm format       # Format with Prettier
+pnpm format       # Format with Biome
 pnpm env:prod     # Pull production env vars from Vercel
 pnpm env:dev      # Pull development env vars from Vercel
 ```
 
-**Note:** This project requires pnpm (enforced via preinstall script). Node.js >= 20.0.0 and pnpm >= 9 required.
+**Note:** This project requires pnpm (enforced via preinstall script). Node.js >= 20.9.0 and pnpm >= 9 required.
 
 ## Architecture
 
@@ -44,7 +44,7 @@ pnpm env:dev      # Pull development env vars from Vercel
 ### Styling
 - Tailwind CSS with custom configuration
 - Shadcn/ui components (configured in `components.json`)
-- Framer Motion and GSAP for animations
+- Framer Motion for animations
 - next-themes for dark mode (default theme is dark)
 
 ### Data Fetching

global.d.ts

@@ -1,9 +1,9 @@
 // global.d.ts
 import type en from "./messages/en.json";
 
-type Messages = typeof en;
-
-declare global {
-	// Use type safe message keys with `next-intl`
-	interface IntlMessages extends Messages {}
+// Use type safe message keys with `next-intl`
+declare module "next-intl" {
+	interface AppConfig {
+		Messages: typeof en;
+	}
 }

i18n/routing.ts

@@ -16,5 +16,11 @@ export const routing = defineRouting({
 
 // Lightweight wrappers around Next.js' navigation APIs
 // that will consider the routing configuration
-export const { Link, redirect, usePathname, useRouter, permanentRedirect } =
-	createNavigation(routing);
+export const {
+	Link,
+	redirect,
+	usePathname,
+	useRouter,
+	permanentRedirect,
+	getPathname,
+} = createNavigation(routing);

next.config.ts

@@ -7,17 +7,18 @@ const withNextIntl = createNextIntlPlugin();
 const nextConfig: NextConfig = {
 	skipTrailingSlashRedirect: true,
 
-	async redirects() {
+	// Must be rewrites, not redirects: posthog-js is configured with
+	// `api_host: "/ingest"` so these have to be proxied server-side. A redirect
+	// hands the browser the posthog.com URL and defeats the proxy entirely.
+	async rewrites() {
 		return [
 			{
 				source: "/ingest/static/:path*",
 				destination: "https://us-assets.i.posthog.com/static/:path*",
-				permanent: true,
 			},
 			{
 				source: "/ingest/:path*",
 				destination: "https://us.i.posthog.com/:path*",
-				permanent: true,
 			},
 		];
 	},

package.json

@@ -6,8 +6,7 @@
 		"dev": "next dev",
 		"build": "next build",
 		"start": "next start",
-		"export": "next export",
-		"format": "prettier --write \"**/*.{ts,tsx,md}\" --loglevel warn",
+		"format": "biome format --write .",
 		"lint": "lint-staged --allow-empty",
 		"prepare": "husky install",
 		"test": "echo \"Next-app tests\"",
@@ -16,48 +15,36 @@
 		"preinstall": "npx only-allow pnpm"
 	},
 	"dependencies": {
-		"@emotion/react": "^11.10.6",
-		"@emotion/styled": "^11.10.6",
-		"@gsap/react": "^2.1.2",
-		"@radix-ui/react-dropdown-menu": "^2.1.16",
-		"@radix-ui/react-menubar": "^1.1.15",
-		"@radix-ui/react-popover": "^1.1.14",
-		"@radix-ui/react-slot": "^1.2.3",
-		"@react-three/drei": "^9.86.3",
-		"@react-three/fiber": "^8.14.4",
+		"@radix-ui/react-dropdown-menu": "^2.1.24",
+		"@radix-ui/react-popover": "^1.1.23",
+		"@radix-ui/react-slot": "^1.3.3",
 		"@t3-oss/env-nextjs": "^0.13.11",
-		"axios": "^1.5.1",
+		"axios": "^1.19.0",
 		"class-variance-authority": "^0.7.1",
 		"clsx": "^2.1.1",
-		"eslint": "8.35.0",
-		"eslint-config-next": "13.2.3",
-		"framer-motion": "^12.23.12",
-		"gsap": "^3.12.5",
-		"lucide-react": "^0.525.0",
-		"next": "15.4.10",
-		"next-intl": "^3.26.3",
-		"next-themes": "^0.2.1",
-		"posthog-js": "1.391.2",
-		"react": "18.2.0",
-		"react-dom": "18.2.0",
-		"react-icons": "^4.11.0",
+		"framer-motion": "^13.1.0",
+		"lucide-react": "^1.33.0",
+		"next": "16.3.1",
+		"next-intl": "^4.13.7",
+		"next-themes": "^0.4.6",
+		"posthog-js": "1.418.2",
+		"react": "19.2.8",
+		"react-dom": "19.2.8",
+		"react-icons": "^5.7.0",
 		"react-intersection-observer": "^9.5.2",
-		"tailwind-merge": "^3.3.1",
+		"tailwind-merge": "^3.6.0",
 		"tailwindcss-animate": "^1.0.7",
-		"three": "^0.157.0",
-		"zod": "^4.0.5"
+		"zod": "^4.4.3"
 	},
 	"devDependencies": {
 		"@biomejs/biome": "1.9.4",
-		"@types/node": "^20",
-		"@types/react": "^19.1.12",
-		"@types/react-dom": "^19",
-		"@types/three": "^0.156.0",
-		"autoprefixer": "10.4.13",
+		"@types/node": "^24.13.3",
+		"@types/react": "^19.2.18",
+		"@types/react-dom": "^19.2.4",
+		"autoprefixer": "10.5.4",
 		"husky": "^9.1.7",
-		"lint-staged": "^15.4.3",
-		"postcss": "8.4.21",
-		"prettier": "^2.7.1",
+		"lint-staged": "^17.3.0",
+		"postcss": "^8.5.26",
 		"tailwindcss": "^3.3.3",
 		"typescript": "^5.0.4"
 	},
@@ -67,7 +54,17 @@
 		]
 	},
 	"engines": {
-		"node": ">=20.0.0",
+		"node": ">=20.9.0",
 		"pnpm": ">=9"
+	},
+	"pnpm": {
+		"comment": "Build-time transitives pulled in by tailwindcss 3 (sucrase, chokidar, postcss-load-config). Tailwind 4 drops these deps outright, so remove this block with that upgrade.",
+		"overrides": {
+			"glob": "^10.5.0",
+			"minimatch": "^9.0.7",
+			"brace-expansion": "^2.1.4",
+			"picomatch@2": "^2.3.2",
+			"yaml": "^2.8.3"
+		}
 	}
 }