Add CSV/Excel calendar upload that maps posts into the monthly RRSS view.

Agency can import editorial calendars per tenant; pieces land on each day with the same month grid and day zoom as existing plans.

Co-authored-by: Cursor <cursoragent@cursor.com>

next.config.js

@@ -3,6 +3,7 @@ const nextConfig = {
   output: 'standalone',
   reactStrictMode: true,
   poweredByHeader: false,
+  serverExternalPackages: ['xlsx'],
   async headers() {
     return [
       {