Customer Detail Page and Enhance dynamic breadcrumbs

internal_frontend/lib/breadcrumb-map.ts

@@ -6,4 +6,15 @@ export const breadcrumbMap: Record<string, string> = {
     'users': 'User Management',
     'customers': 'Kundenübersicht',
     // Add more mappings as needed
-};
+};
+
+export const breadcrumbResolvers: Record<string, (id: string) => Promise<string>> = {
+    "customers": async (id: string) => {
+        const res = await fetch(`/api/customers/${id}`, {cache: "no-store"});
+        const customer = await res  .json();
+        if (customer.companyName) return `Firma: ${customer.companyName}`;
+        if (customer.name) return `Name: ${customer.name}`;
+        return `ID: ${id}`;
+    },
+    // Add more mappings as needed
+};