modified: frontend/src/components/EndpointModal.tsx

frontend/src/components/EndpointModal.tsx

@@ -184,7 +184,7 @@ export default function EndpointModal({
               <div>
                 <label className="block text-sm font-medium text-gray-700 mb-1">База данных</label>
                 <select
-                  required
+                  required={formData.execution_type === 'sql'}
                   value={formData.database_id}
                   onChange={(e) => setFormData({ ...formData, database_id: e.target.value })}
                   className="input w-full"
@@ -511,9 +511,11 @@ export default function EndpointModal({
               type="button"
               onClick={() => testMutation.mutate()}
               disabled={
-                !formData.database_id ||
-                (formData.execution_type === 'sql' ? !formData.sql_query : !formData.script_code) ||
-                testMutation.isPending
+                testMutation.isPending ||
+                (formData.execution_type === 'sql'
+                  ? (!formData.database_id || !formData.sql_query)
+                  : !formData.script_code
+                )
               }
               className="btn btn-secondary flex items-center gap-2"
             >