feat: bulk XML upload, period selector, and session persistence

- Add bulk XML CFDI upload support (up to 300MB)
- Add period selector component for month/year navigation
- Fix session persistence on page refresh (Zustand hydration)
- Fix income/expense classification based on tenant RFC
- Fix IVA calculation from XML (correct Impuestos element)
- Add error handling to reportes page
- Support multiple CORS origins
- Update reportes service with proper Decimal/BigInt handling
- Add RFC to tenant view store for proper CFDI classification
- Update README with changelog and new features

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

apps/web/lib/api/cfdi.ts

@@ -30,3 +30,42 @@ export async function getResumenCfdi(año?: number, mes?: number) {
   const response = await apiClient.get(`/cfdi/resumen?${params}`);
   return response.data;
 }
+
+export interface CreateCfdiData {
+  uuidFiscal: string;
+  tipo: 'ingreso' | 'egreso' | 'traslado' | 'nomina' | 'pago';
+  serie?: string;
+  folio?: string;
+  fechaEmision: string;
+  fechaTimbrado: string;
+  rfcEmisor: string;
+  nombreEmisor: string;
+  rfcReceptor: string;
+  nombreReceptor: string;
+  subtotal: number;
+  descuento?: number;
+  iva?: number;
+  isrRetenido?: number;
+  ivaRetenido?: number;
+  total: number;
+  moneda?: string;
+  tipoCambio?: number;
+  metodoPago?: string;
+  formaPago?: string;
+  usoCfdi?: string;
+  estado?: string;
+}
+
+export async function createCfdi(data: CreateCfdiData): Promise<Cfdi> {
+  const response = await apiClient.post<Cfdi>('/cfdi', data);
+  return response.data;
+}
+
+export async function createManyCfdis(cfdis: CreateCfdiData[]): Promise<{ count: number }> {
+  const response = await apiClient.post<{ count: number; message: string }>('/cfdi/bulk', { cfdis });
+  return response.data;
+}
+
+export async function deleteCfdi(id: string): Promise<void> {
+  await apiClient.delete(`/cfdi/${id}`);
+}