guest book added

app/api/guestbook/[id]/route.ts

@@ -0,0 +1,20 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { mutations } from '@/lib/mutations'
+import { getServerSession } from 'next-auth'
+import { authOptions } from '../../auth/[...nextauth]/route'
+
+export async function PATCH(req: NextRequest, { params }: { params: { id: string } }) {
+  const session = await getServerSession(authOptions)
+  if (!session?.user || !['COUPLE', 'PLANNER'].includes(session.user.role)) {
+    return new NextResponse('Unauthorized', { status: 403 })
+  }
+
+  try {
+    const data = await req.json()
+    const updated = await mutations.updateGuestBookEntry(params.id, data)
+    return NextResponse.json(updated)
+  } catch (err) {
+    console.error('[EDIT GUESTBOOK ENTRY]', err)
+    return new NextResponse('Failed to update guestbook entry', { status: 500 })
+  }
+}