fix: support both static export (CF Pages) and standalone (Docker) builds

- next.config.ts now checks STATIC_EXPORT env var to toggle output mode
- Added pages:build script for Cloudflare Pages to use
- Docker uses default 'npm run build' which creates .next/standalone
- CF Pages should use 'npm run pages:build' which creates out/

next.config.ts

@@ -1,7 +1,8 @@
 import type { NextConfig } from "next";
 
 const nextConfig: NextConfig = {
-  output: 'export',
+  // Use 'export' for static hosting (CF Pages), 'standalone' for Docker/self-hosting
+  output: process.env.STATIC_EXPORT === 'true' ? 'export' : 'standalone',
   images: {
     unoptimized: true,
   },

package.json

@@ -6,6 +6,7 @@
     "dev": "next dev",
     "build": "next build",
     "build:static": "STATIC_EXPORT=true next build",
+    "pages:build": "STATIC_EXPORT=true npm run build",
     "start": "next start",
     "lint": "eslint",
     "test": "vitest run",