fix: use afterFiles/fallback rewrites to allow Next.js API routes to work

apps/web/next.config.ts

@@ -11,7 +11,10 @@ const nextConfig: NextConfig = {
     
     console.log('[next.config] INTERNAL_API_URL:', internalApiUrl)
     
-    return [
+    return {
+      // beforeFiles rewrites are checked before pages/public files
+      // and after Next.js API routes - so API routes will work
+      afterFiles: [
         // Nodes API (public endpoints)
         {
           source: '/api/nodes/list',
@@ -51,12 +54,17 @@ const nextConfig: NextConfig = {
           source: '/api/v1/:path*',
           destination: `${internalApiUrl}/api/v1/:path*`,
         },
-      // Fallback for other /api routes
+      ],
+      // fallback rewrites are checked after pages/public files
+      // and after dynamic routes, but before 404
+      fallback: [
+        // Fallback for other /api routes that don't have API route handlers
         {
           source: '/api/:path*',
           destination: `${internalApiUrl}/:path*`,
         },
-    ]
+      ],
+    }
   },
 }
 

apps/web/src/app/api/_debug/api-config/route.ts

@@ -0,0 +1,16 @@
+import { NextResponse } from 'next/server';
+import { getApiConfig } from '@/lib/apiProxy';
+
+/**
+ * Debug endpoint to check API configuration
+ * GET /api/_debug/api-config
+ */
+export async function GET() {
+  const config = getApiConfig();
+  
+  return NextResponse.json({
+    ...config,
+    timestamp: new Date().toISOString(),
+  });
+}
+