feat: align RU validation, error contract, and generator runtime templates

Wire DSL-derived field labels, safe API error JSON (string|string[]), decimal/enum DTO fixes, and client dataProvider without comma-splitting. Add generation/templates/runtime as canonical source copied on generate; extend AID bundle, prompts, validation gate, and docs.

client/src/App.tsx

@@ -1,6 +1,7 @@
 import { Admin, Resource } from 'react-admin';
 import dataProvider from './dataProvider';
 import authProvider from './auth/authProvider';
+import { AppNotification } from './AppNotification';
 
 import { EquipmentTypeList } from './resources/equipment-type/EquipmentTypeList';
 import { EquipmentTypeCreate } from './resources/equipment-type/EquipmentTypeCreate';
@@ -18,7 +19,12 @@ import { RepairOrderEdit } from './resources/repair-order/RepairOrderEdit';
 import { RepairOrderShow } from './resources/repair-order/RepairOrderShow';
 
 const App = () => (
-  <Admin dataProvider={dataProvider} authProvider={authProvider} requireAuth>
+  <Admin
+    dataProvider={dataProvider}
+    authProvider={authProvider}
+    notification={AppNotification}
+    requireAuth
+  >
     <Resource
       name="equipment-types"
       options={{ label: 'Виды оборудования' }}

client/src/AppNotification.tsx

@@ -0,0 +1,16 @@
+import { Notification, NotificationProps } from 'react-admin';
+
+export const AppNotification = (props: NotificationProps) => (
+  <Notification
+    {...props}
+    sx={{
+      whiteSpace: 'pre-line',
+      '& .MuiAlert-message': {
+        whiteSpace: 'pre-line',
+      },
+      '& .MuiSnackbarContent-message': {
+        whiteSpace: 'pre-line',
+      },
+    }}
+  />
+);

client/src/dataProvider.ts

@@ -1,18 +1,57 @@
-import { DataProvider, fetchUtils } from 'react-admin';
+import { DataProvider, fetchUtils, HttpError } from 'react-admin';
 import { getValidAccessToken } from './auth/keycloak';
 import { env } from './config/env';
 
 const apiUrl = env.apiUrl;
 
+/** HTTP status from fetch / react-admin error objects (avoid coupling the client to Nest). */
+type HttpStatusCode = number;
+
+/** JSON body shape returned by ApiExceptionFilter (and compatible Nest errors). */
+type ApiErrorBody = {
+  message?: string | string[];
+  code?: string;
+  details?: unknown;
+};
+
+/** Shape thrown by fetchUtils.fetchJson on non-2xx responses. */
+type FetchJsonError = {
+  status?: HttpStatusCode;
+  body?: ApiErrorBody;
+  message?: string;
+};
+
+function userMessageFromApiBody(
+  body: ApiErrorBody | undefined,
+  fallback: string,
+): string {
+  const raw = body?.message;
+  if (Array.isArray(raw)) return raw.join('\n');
+  if (typeof raw === 'string') return raw;
+  return fallback;
+}
+
 const httpClient = async (url: string, options: fetchUtils.Options = {}) => {
   const token = await getValidAccessToken();
   const headers = new Headers(options.headers ?? { Accept: 'application/json' });
   headers.set('Authorization', `Bearer ${token}`);
 
-  return fetchUtils.fetchJson(url, {
-    ...options,
-    headers,
-  });
+  try {
+    return await fetchUtils.fetchJson(url, {
+      ...options,
+      headers,
+    });
+  } catch (error: unknown) {
+    const fetchError = error as FetchJsonError;
+    const fromPayload = userMessageFromApiBody(fetchError.body, '');
+    const fallbackMessage = fetchError.message || 'Request failed';
+
+    throw new HttpError(
+      fromPayload || fallbackMessage,
+      fetchError.status ?? 500,
+      fetchError.body,
+    );
+  }
 };
 
 function buildQueryString(query: Record<string, unknown>) {

client/src/resources/equipment/EquipmentEdit.tsx

@@ -10,7 +10,7 @@ const statusChoices = [
 export const EquipmentEdit = () => (
   <Edit>
     <SimpleForm>
-      <TextInput source="id" label="id" disabled />
+      <TextInput source="id" label="Идентификатор" disabled />
       <TextInput source="inventoryNumber" label="Инвентарный номер" isRequired />
       <TextInput source="serialNumber" label="Заводской (серийный) номер"  />
       <TextInput source="name" label="Наименование единицы оборудования" isRequired />

client/src/resources/equipment/EquipmentList.tsx

@@ -47,7 +47,7 @@ const EquipmentListActions = () => (
 export const EquipmentList = () => (
   <List actions={<EquipmentListActions />} filters={equipmentFilters} sort={{ field: 'inventoryNumber', order: 'ASC' }}>
     <Datagrid rowClick="show">
-      <TextField source="id" label="id" />
+      <TextField source="id" label="Идентификатор" />
       <TextField source="inventoryNumber" label="Инвентарный номер" />
       <TextField source="serialNumber" label="Заводской (серийный) номер" />
       <TextField source="name" label="Наименование единицы оборудования" />

client/src/resources/equipment/EquipmentShow.tsx

@@ -9,7 +9,7 @@ const statusChoices = [
 export const EquipmentShow = () => (
   <Show>
     <SimpleShowLayout>
-      <TextField source="id" label="id" />
+      <TextField source="id" label="Идентификатор" />
       <TextField source="inventoryNumber" label="Инвентарный номер" />
       <TextField source="serialNumber" label="Заводской (серийный) номер" />
       <TextField source="name" label="Наименование единицы оборудования" />

client/src/resources/repair-order/RepairOrderEdit.tsx

@@ -20,7 +20,7 @@ const statusChoices = [
 export const RepairOrderEdit = () => (
   <Edit>
     <SimpleForm>
-      <TextInput source="id" label="id" disabled />
+      <TextInput source="id" label="Идентификатор" disabled />
       <TextInput source="number" label="Номер заявки" isRequired />
       <ReferenceInput source="equipmentId" reference="equipment">
         <AutocompleteInput label="Оборудование" optionText={(record) => record.inventoryNumber ? `${record.inventoryNumber} — ${record.name ?? record.inventoryNumber}` : (record.name ?? record.id)} filterToQuery={(searchText) => ({ q: searchText })} />

client/src/resources/repair-order/RepairOrderList.tsx

@@ -58,7 +58,7 @@ const RepairOrderListActions = () => (
 export const RepairOrderList = () => (
   <List actions={<RepairOrderListActions />} filters={repairOrderFilters} sort={{ field: 'number', order: 'ASC' }}>
     <Datagrid rowClick="show">
-      <TextField source="id" label="id" />
+      <TextField source="id" label="Идентификатор" />
       <TextField source="number" label="Номер заявки" />
       <ReferenceField source="equipmentId" reference="equipment" label="Оборудование" link="show">
         <TextField source="inventoryNumber" />

client/src/resources/repair-order/RepairOrderShow.tsx

@@ -19,7 +19,7 @@ const statusChoices = [
 export const RepairOrderShow = () => (
   <Show>
     <SimpleShowLayout>
-      <TextField source="id" label="id" />
+      <TextField source="id" label="Идентификатор" />
       <TextField source="number" label="Номер заявки" />
       <ReferenceField source="equipmentId" reference="equipment" label="Оборудование" link="show">
         <TextField source="inventoryNumber" />