Replace BPS Excel stub with multi-client calendar template.

Official download now generates a blank workbook with catalog autofill, notas_internas ignored on import, and the same template for every tenant.

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

src/app/api/calendar/template/route.ts

@@ -0,0 +1,55 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { createClient } from '@/lib/supabase/server';
+import { resolveActiveTenant } from '@/lib/tenant-context';
+import { isAgencyRole, userRole } from '@/lib/agency';
+import {
+  buildOfficialCsv,
+  buildOfficialXlsx,
+} from '@/lib/calendar-template';
+
+export const dynamic = 'force-dynamic';
+export const runtime = 'nodejs';
+
+/**
+ * GET /api/calendar/template?format=xlsx|csv
+ * Official blank multi-client template (NOT a filled BPS calendar).
+ */
+export async function GET(req: NextRequest) {
+  const supabase = await createClient();
+  const {
+    data: { user },
+  } = await supabase.auth.getUser();
+  if (!user) {
+    return NextResponse.json({ error: 'Unauthorized' }, { status: 401 });
+  }
+  if (!isAgencyRole(userRole(user))) {
+    return NextResponse.json({ error: 'Solo agencia' }, { status: 403 });
+  }
+
+  const ctx = await resolveActiveTenant(user);
+  const label =
+    ctx.tenantId && !ctx.portfolioWide ? ctx.label || 'CLIENTE' : 'CLIENTE';
+
+  const format = (req.nextUrl.searchParams.get('format') || 'xlsx').toLowerCase();
+  if (format === 'csv') {
+    const csv = buildOfficialCsv(label);
+    return new NextResponse(csv, {
+      headers: {
+        'Content-Type': 'text/csv; charset=utf-8',
+        'Content-Disposition':
+          'attachment; filename="plantilla-calendario-4ventures.csv"',
+        'Cache-Control': 'no-store',
+      },
+    });
+  }
+
+  const { buffer, filename } = await buildOfficialXlsx(label);
+  return new NextResponse(new Uint8Array(buffer), {
+    headers: {
+      'Content-Type':
+        'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
+      'Content-Disposition': `attachment; filename="${filename}"`,
+      'Cache-Control': 'no-store',
+    },
+  });
+}

src/app/api/calendar/upload/route.ts

@@ -9,11 +9,11 @@ import {
 } from '@/lib/agency';
 import {
   parseJsonCalendar,
-  SAMPLE_CSV,
   sheetsToPlans,
   type ImportResult,
   type SheetRows,
 } from '@/lib/calendar-import';
+import { buildOfficialCsv } from '@/lib/calendar-template';
 import type { RrssMonthPlan } from '@/components/RrssMonthView';
 
 export const dynamic = 'force-dynamic';
@@ -21,12 +21,14 @@ export const runtime = 'nodejs';
 
 const MAX_BYTES = 8 * 1024 * 1024;
 
+/** @deprecated Prefer GET /api/calendar/template?format=csv */
 export async function GET() {
-  return new NextResponse(SAMPLE_CSV, {
+  return new NextResponse(buildOfficialCsv('CLIENTE'), {
     headers: {
       'Content-Type': 'text/csv; charset=utf-8',
       'Content-Disposition':
         'attachment; filename="plantilla-calendario-4ventures.csv"',
+      'Cache-Control': 'no-store',
     },
   });
 }