fix: migrate middleware.ts → proxy.ts to fix 500 MIDDLEWARE_INVOCATION_FAILED

proxy.ts

@@ -0,0 +1,37 @@
+import { clerkMiddleware, createRouteMatcher } from '@clerk/nextjs/server'
+import { NextResponse, NextRequest } from 'next/server'
+import { isClerkConfigured } from '@/lib/clerk-auth'
+
+const isDashboardRoute = createRouteMatcher(['/dashboard(.*)'])
+
+export default clerkMiddleware(async (auth, request: NextRequest) => {
+  try {
+    if (!isDashboardRoute(request)) {
+      return NextResponse.next()
+    }
+
+    if (isClerkConfigured()) {
+      try {
+        await auth.protect()
+      } catch (error) {
+        console.error('[proxy] Clerk auth.protect() failed:', error)
+        return NextResponse.redirect(new URL('/?error=auth_failed', request.url))
+      }
+      return NextResponse.next()
+    }
+
+    const userId = request.cookies.get('github_user_id')?.value
+    const accessToken = request.cookies.get('github_access_token')?.value
+    if (!userId || !accessToken) {
+      return NextResponse.redirect(new URL('/?error=auth_required', request.url))
+    }
+    return NextResponse.next()
+  } catch (error) {
+    console.error('[proxy] Invocation error:', error)
+    return NextResponse.redirect(new URL('/?error=middleware_error', request.url))
+  }
+})
+
+export const config = {
+  matcher: ['/dashboard/:path*'],
+}