feat: Zona de marca tipo Estilo/Brief + brandbooks desde ads/RRSS

UI con nav lateral numerada y panel editable; parse de brandbook JSON string;
enrich desde Meta/Google/IG/FB/web/CSS para que app.4ventures.es muestre el kit.

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

src/app/api/brandbook/enrich/route.ts

@@ -0,0 +1,107 @@
+/**
+ * POST — auto-fill Zona de marca for one or all tenants from available sources.
+ * Body: { tenant_id?, slug?, all?: true, force_seed?: true, dry_run?: true }
+ */
+import { NextRequest, NextResponse } from 'next/server';
+import { createClient } from '@/lib/supabase/server';
+import { isAgencyRole, userRole } from '@/lib/agency';
+import { resolveActiveTenant } from '@/lib/tenant-context';
+import {
+  enrichAllTenantBrandbooks,
+  enrichTenantBrandbook,
+} from '@/lib/brandbook-enrich';
+import { ensureCreativesDriveFolders } from '@/lib/creatives-drive';
+import { serviceHeaders, supabaseUrl } from '@/lib/agency';
+
+export const dynamic = 'force-dynamic';
+export const maxDuration = 120;
+
+export async function POST(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 });
+  }
+
+  let body: {
+    tenant_id?: string;
+    slug?: string;
+    all?: boolean;
+    force_seed?: boolean;
+    dry_run?: boolean;
+    ensure_drive?: boolean;
+  } = {};
+  try {
+    body = await req.json();
+  } catch {
+    body = {};
+  }
+
+  const forceSeed = Boolean(body.force_seed);
+  const dryRun = Boolean(body.dry_run);
+  const ensureDrive = body.ensure_drive !== false;
+
+  if (body.all) {
+    const results = await enrichAllTenantBrandbooks({
+      forceSeed,
+      dryRun,
+      slugFilter: body.slug,
+    });
+    if (ensureDrive && !dryRun) {
+      for (const r of results) {
+        if (!r.ok) continue;
+        await ensureCreativesDriveFolders(r.tenantId, r.slug);
+      }
+    }
+    return NextResponse.json({
+      ok: true,
+      count: results.length,
+      results,
+    });
+  }
+
+  let tenantId = body.tenant_id?.trim() || '';
+  if (!tenantId && body.slug) {
+    const headers = serviceHeaders();
+    const base = supabaseUrl();
+    if (headers && base) {
+      const r = await fetch(
+        `${base}/rest/v1/tenants?slug=eq.${encodeURIComponent(
+          body.slug
+        )}&select=id&limit=1`,
+        { headers, cache: 'no-store' }
+      );
+      const rows = (await r.json()) as { id: string }[];
+      tenantId = rows[0]?.id || '';
+    }
+  }
+  if (!tenantId) {
+    const ctx = await resolveActiveTenant(user);
+    tenantId = ctx.tenantId || '';
+  }
+  if (!tenantId) {
+    return NextResponse.json(
+      { error: 'Indica tenant_id, slug, all:true o selecciona cliente' },
+      { status: 400 }
+    );
+  }
+
+  const result = await enrichTenantBrandbook({
+    tenantId,
+    forceSeed,
+    dryRun,
+  });
+
+  let drive: { ok: boolean; ads?: string; rrss?: string; warning?: string } | null =
+    null;
+  if (ensureDrive && !dryRun && result.ok) {
+    drive = await ensureCreativesDriveFolders(result.tenantId, result.slug);
+  }
+
+  return NextResponse.json({ ok: result.ok, result, drive });
+}