feat: previews de creatividades en Ad Tracker (estilo Brava)

Meta Graph en vivo + ficha Google; galería por anuncio en resumen/Meta/Google.

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

src/app/api/ad-tracker/creatives/route.ts

@@ -0,0 +1,96 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { createClient } from '@/lib/supabase/server';
+import { resolveActiveTenant, restGet } from '@/lib/tenant-context';
+import { isAgencyRole, userRole } from '@/lib/agency';
+import { AdDailyRow } from '@/lib/metrics';
+import {
+  AdCreativeCard,
+  buildGoogleCardsFromDaily,
+  fetchMetaCreativeCards,
+} from '@/lib/ad-creatives-meta';
+
+export const dynamic = 'force-dynamic';
+
+/**
+ * GET /api/ad-tracker/creatives?since=YYYY-MM-DD&until=YYYY-MM-DD&platform=meta|google|all
+ * Returns ad cards with creative preview URLs (Meta live; Google text fallback).
+ */
+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 });
+  }
+
+  const ctx = await resolveActiveTenant(user);
+  if (!ctx.tenantId || ctx.portfolioWide) {
+    return NextResponse.json(
+      { error: 'select_tenant', hint: 'Elige un cliente en Contexto' },
+      { status: 400 }
+    );
+  }
+
+  const since = req.nextUrl.searchParams.get('since') || '';
+  const until = req.nextUrl.searchParams.get('until') || '';
+  const platform = (req.nextUrl.searchParams.get('platform') || 'all').toLowerCase();
+  if (!/^\d{4}-\d{2}-\d{2}$/.test(since) || !/^\d{4}-\d{2}-\d{2}$/.test(until)) {
+    return NextResponse.json(
+      { error: 'bad_range', hint: 'since/until YYYY-MM-DD' },
+      { status: 400 }
+    );
+  }
+
+  const agency = isAgencyRole(userRole(user));
+  let daily: AdDailyRow[] = [];
+  if (agency && ctx.viaView) {
+    const tid = encodeURIComponent(ctx.tenantId);
+    const d = await restGet<AdDailyRow[]>(
+      `/rest/v1/ad_daily?tenant_id=eq.${tid}&date=gte.${since}&date=lte.${until}&select=date,platform,campaign_name,ad_id,ad_name,impressions,clicks,spend,platform_leads&order=date.desc&limit=5000`
+    );
+    daily = d.data || [];
+  } else {
+    const { data } = await supabase
+      .from('ad_daily')
+      .select(
+        'date,platform,campaign_name,ad_id,ad_name,impressions,clicks,spend,platform_leads'
+      )
+      .gte('date', since)
+      .lte('date', until)
+      .order('date', { ascending: false })
+      .limit(5000);
+    daily = (data as AdDailyRow[]) || [];
+  }
+
+  const warnings: string[] = [];
+  let metaAds: AdCreativeCard[] = [];
+  let googleAds: AdCreativeCard[] = [];
+
+  if (platform === 'meta' || platform === 'all') {
+    const meta = await fetchMetaCreativeCards({
+      tenantId: ctx.tenantId,
+      dailyRows: daily,
+      since,
+      until,
+      limit: 40,
+    });
+    metaAds = meta.ads;
+    if (meta.warning) warnings.push(meta.warning);
+  }
+
+  if (platform === 'google' || platform === 'all') {
+    googleAds = buildGoogleCardsFromDaily(daily, since, until, 40);
+  }
+
+  return NextResponse.json({
+    ok: true,
+    tenantId: ctx.tenantId,
+    since,
+    until,
+    ads: [...metaAds, ...googleAds],
+    metaCount: metaAds.length,
+    googleCount: googleAds.length,
+    warnings,
+  });
+}