feat: RRSS hub estilo Miia + Ad Tracker por cliente

Replica agua-miia/rrss (hub, archivo, octubre 2026 con 27 piezas) y añade Ad Tracker por tenant al estilo Brava (periodos, Meta+Google, CPL/clics, campañas).

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

src/lib/ad-tracker-range.ts

@@ -0,0 +1,153 @@
+/** Date presets for Ad Tracker (Brava-style). No date-fns dependency. */
+
+export type RangePreset =
+  | 'today'
+  | 'yesterday'
+  | 'last_7d'
+  | 'last_14d'
+  | 'last_28d'
+  | 'last_30d'
+  | 'this_week'
+  | 'last_week'
+  | 'this_month'
+  | 'last_month'
+  | 'custom';
+
+export type DateRange = { since: string; until: string; label: string };
+
+const QUICK: { id: RangePreset; label: string }[] = [
+  { id: 'today', label: 'Hoy' },
+  { id: 'yesterday', label: 'Ayer' },
+  { id: 'last_7d', label: '7 días' },
+  { id: 'last_14d', label: '14 días' },
+  { id: 'last_28d', label: '28 días' },
+  { id: 'last_30d', label: '30 días' },
+  { id: 'this_week', label: 'Esta semana' },
+  { id: 'last_week', label: 'Semana pasada' },
+  { id: 'this_month', label: 'Este mes' },
+  { id: 'last_month', label: 'Mes pasado' },
+];
+
+export { QUICK as AD_TRACKER_PRESETS };
+
+function iso(d: Date): string {
+  return d.toISOString().slice(0, 10);
+}
+
+function startOfWeekMon(d: Date): Date {
+  const x = new Date(Date.UTC(d.getUTCFullYear(), d.getUTCMonth(), d.getUTCDate()));
+  const day = x.getUTCDay();
+  const diff = day === 0 ? -6 : 1 - day;
+  x.setUTCDate(x.getUTCDate() + diff);
+  return x;
+}
+
+const MONTHS_ES = [
+  'ene',
+  'feb',
+  'mar',
+  'abr',
+  'may',
+  'jun',
+  'jul',
+  'ago',
+  'sep',
+  'oct',
+  'nov',
+  'dic',
+];
+
+export function formatRangeLabel(since: string, until: string): string {
+  const a = since.split('-').map(Number);
+  const b = until.split('-').map(Number);
+  if (a.length !== 3 || b.length !== 3) return `${since} - ${until}`;
+  return `${a[2]} ${MONTHS_ES[a[1] - 1]} ${a[0]} - ${b[2]} ${MONTHS_ES[b[1] - 1]} ${b[0]}`;
+}
+
+export function resolveAdRange(
+  preset: RangePreset,
+  custom?: { since?: string; until?: string }
+): DateRange {
+  const now = new Date();
+  const today = new Date(
+    Date.UTC(now.getUTCFullYear(), now.getUTCMonth(), now.getUTCDate())
+  );
+
+  let since = today;
+  let until = today;
+
+  switch (preset) {
+    case 'today':
+      break;
+    case 'yesterday':
+      since = new Date(today);
+      since.setUTCDate(since.getUTCDate() - 1);
+      until = new Date(since);
+      break;
+    case 'last_7d':
+      since = new Date(today);
+      since.setUTCDate(since.getUTCDate() - 6);
+      break;
+    case 'last_14d':
+      since = new Date(today);
+      since.setUTCDate(since.getUTCDate() - 13);
+      break;
+    case 'last_28d':
+      since = new Date(today);
+      since.setUTCDate(since.getUTCDate() - 27);
+      break;
+    case 'last_30d':
+      since = new Date(today);
+      since.setUTCDate(since.getUTCDate() - 29);
+      break;
+    case 'this_week':
+      since = startOfWeekMon(today);
+      until = today;
+      break;
+    case 'last_week': {
+      const thisMon = startOfWeekMon(today);
+      until = new Date(thisMon);
+      until.setUTCDate(until.getUTCDate() - 1);
+      since = startOfWeekMon(until);
+      break;
+    }
+    case 'this_month':
+      since = new Date(Date.UTC(today.getUTCFullYear(), today.getUTCMonth(), 1));
+      until = today;
+      break;
+    case 'last_month': {
+      const firstThis = new Date(
+        Date.UTC(today.getUTCFullYear(), today.getUTCMonth(), 1)
+      );
+      until = new Date(firstThis);
+      until.setUTCDate(until.getUTCDate() - 1);
+      since = new Date(Date.UTC(until.getUTCFullYear(), until.getUTCMonth(), 1));
+      break;
+    }
+    case 'custom':
+      since = custom?.since ? new Date(custom.since + 'T00:00:00Z') : since;
+      until = custom?.until ? new Date(custom.until + 'T00:00:00Z') : until;
+      break;
+  }
+
+  const s = iso(since);
+  const u = iso(until);
+  return { since: s, until: u, label: formatRangeLabel(s, u) };
+}
+
+export function normalizePlatform(p?: string): 'meta' | 'google' | 'other' {
+  const x = (p || '').toLowerCase();
+  if (
+    x.includes('meta') ||
+    x.includes('facebook') ||
+    x.includes('instagram') ||
+    x === 'fb' ||
+    x === 'ig'
+  ) {
+    return 'meta';
+  }
+  if (x.includes('google') || x.includes('adwords') || x === 'gads') {
+    return 'google';
+  }
+  return 'other';
+}