Add database diagnostic export

src/dataService.ts

@@ -161,6 +161,23 @@ const authFetch = async (path: string, options: RequestInit = {}): Promise<Respo
     return response;
 };
 
+export const downloadDatabaseDiagnostic = async (): Promise<void> => {
+    const response = await authFetch('/admin/database-diagnostic', { cache: 'no-store' });
+    const data = await response.json().catch(() => null);
+
+    if (!response.ok) {
+        throw new Error(data?.error || 'Não foi possível exportar o diagnóstico do banco.');
+    }
+
+    const blob = new Blob([JSON.stringify(data, null, 2)], { type: 'application/json;charset=utf-8;' });
+    const url = URL.createObjectURL(blob);
+    const anchor = document.createElement('a');
+    anchor.href = url;
+    anchor.download = `graphs-db-diagnostic-${new Date().toISOString().slice(0, 10)}.json`;
+    anchor.click();
+    URL.revokeObjectURL(url);
+};
+
 export const fetchProductionOrders = async (
     dateRange: DateRange,
     filters?: { search?: string },