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/components/layouts/dashboard-shell.tsx

@@ -4,14 +4,15 @@ import { Header } from './header';
 interface DashboardShellProps {
   children: React.ReactNode;
   title: string;
+  headerContent?: React.ReactNode;
 }
 
-export function DashboardShell({ children, title }: DashboardShellProps) {
+export function DashboardShell({ children, title, headerContent }: DashboardShellProps) {
   return (
     <div className="min-h-screen bg-background">
       <Sidebar />
       <div className="pl-64">
-        <Header title={title} />
+        <Header title={title}>{headerContent}</Header>
         <main className="p-6">{children}</main>
       </div>
     </div>