feat: add purchase invoice batch print page and related components

- Implemented PurchaseInvoiceBatchPrintPage for printing purchase invoices.
- Created InvoicePrintHeader and InvoicePrintFooter components for invoice layout.
- Added invoice layout presets for different styles (Classic, Compact, Modern).
- Developed PurchaseInvoicePaymentDialog for handling payments against invoices.
- Introduced API mocks for company profile and invoice template configuration.
- Added validation functions for company profile and purchase invoices.
- Defined types for company profile, invoice template configuration, and purchase invoices.

Frontend/erp-system/components/Layouts/AppSidebar.tsx

@@ -214,7 +214,7 @@ const navItems: {
     children: [
       { title: "Roles", code: "settings.roles", href: "/dashboard/settings/roles", icon: ShieldCheck },
       { title: "Users", code: "settings.users", href: "/dashboard/settings/users", icon: Users },
-      { title: "Configuration", code: "products.configuration", href: "/dashboard/products/settings", icon: SlidersHorizontal },
+      { title: "Configuration", code: "products.configuration", href: "/dashboard/settings/configuration", icon: SlidersHorizontal },
     ],
   },
   { title: "Help", code: "help", href: "/dashboard/help", icon: HelpCircle },

Frontend/erp-system/components/Layouts/Breadcrumbs.tsx

@@ -34,6 +34,7 @@ const SEGMENT_LABELS: Record<string, string> = {
   requisitions: "Requisitions",
   rfqs: "RFQs",
   "purchase-orders": "Purchase Orders",
+  "purchase-invoices": "Purchase Invoices",
   "purchase-returns": "Purchase Returns",
   production: "Production",
   templates: "Templates",