Add file attachment functionality for equipment management

- Introduced DTO for file attachments with metadata (objectKey, originalFileName, contentType, sizeBytes, downloadUrl).
- Updated Equipment DTO to include an optional attachment field.
- Implemented endpoints for uploading and deleting equipment attachments.
- Enhanced Equipment service to handle file storage and retrieval using S3.
- Updated EquipmentEdit, EquipmentList, and EquipmentShow components to support file attachment input and display.
- Configured S3 settings in docker-compose and environment files.

client/src/resources/equipment/EquipmentAttachmentInput.tsx

@@ -0,0 +1,109 @@
+import { Button, Stack, Typography } from '@mui/material';
+import { useNotify, useRecordContext, useRefresh } from 'react-admin';
+import { useCallback, useState, type ChangeEvent } from 'react';
+import { ensureFreshToken, getAccessToken } from '../../auth/keycloak';
+import { resolveApiBaseUrl } from '../../lib/apiBase';
+
+export type FileAttachmentValue = {
+  objectKey?: string;
+  originalFileName?: string | null;
+  contentType?: string | null;
+  sizeBytes?: number | null;
+  downloadUrl?: string | null;
+} | null;
+
+export function EquipmentAttachmentInput() {
+  const record = useRecordContext();
+  const notify = useNotify();
+  const refresh = useRefresh();
+  const [busy, setBusy] = useState(false);
+
+  const upload = useCallback(
+    async (event: ChangeEvent<HTMLInputElement>) => {
+      const file = event.target.files?.[0];
+      event.target.value = '';
+      if (!file || !record?.id) {
+        return;
+      }
+      setBusy(true);
+      try {
+        await ensureFreshToken();
+        const token = getAccessToken();
+        const form = new FormData();
+        form.append('file', file);
+        const url = `${resolveApiBaseUrl()}/equipment/${record.id}/attachment`;
+        const response = await fetch(url, {
+          method: 'POST',
+          headers: token ? { Authorization: `Bearer ${token}` } : undefined,
+          body: form,
+        });
+        if (!response.ok) {
+          throw new Error(`HTTP ${response.status}`);
+        }
+        notify('Файл сохранён', { type: 'success' });
+        refresh();
+      } catch {
+        notify('Не удалось загрузить файл', { type: 'warning' });
+      } finally {
+        setBusy(false);
+      }
+    },
+    [notify, refresh, record?.id],
+  );
+
+  const remove = useCallback(async () => {
+    if (!record?.id) {
+      return;
+    }
+    setBusy(true);
+    try {
+      await ensureFreshToken();
+      const token = getAccessToken();
+      const url = `${resolveApiBaseUrl()}/equipment/${record.id}/attachment`;
+      const response = await fetch(url, {
+        method: 'DELETE',
+        headers: token ? { Authorization: `Bearer ${token}`, Accept: 'application/json' } : { Accept: 'application/json' },
+      });
+      if (!response.ok) {
+        throw new Error(`HTTP ${response.status}`);
+      }
+      notify('Вложение удалено', { type: 'success' });
+      refresh();
+    } catch {
+      notify('Не удалось удалить файл', { type: 'warning' });
+    } finally {
+      setBusy(false);
+    }
+  }, [notify, refresh, record?.id]);
+
+  const att = (record as { attachment?: FileAttachmentValue })?.attachment;
+
+  return (
+    <Stack spacing={1} sx={{ maxWidth: 480 }}>
+      <Typography component="label" variant="body2">
+        Вложение (файл в MinIO)
+      </Typography>
+      {att?.downloadUrl ? (
+        <Typography variant="body2">
+          <a href={att.downloadUrl} target="_blank" rel="noreferrer">
+            {att.originalFileName || 'Скачать файл'}
+          </a>
+          {att.sizeBytes != null ? ` (${Math.round(att.sizeBytes / 1024)} КБ)` : null}
+        </Typography>
+      ) : (
+        <Typography variant="body2" color="text.secondary">
+          Файл не прикреплён
+        </Typography>
+      )}
+      <Stack direction="row" spacing={1} alignItems="center">
+        <Button variant="outlined" component="label" disabled={busy || !record?.id}>
+          Выбрать файл…
+          <input type="file" hidden onChange={upload} />
+        </Button>
+        <Button variant="text" color="error" disabled={busy || !att?.objectKey} onClick={remove}>
+          Удалить
+        </Button>
+      </Stack>
+    </Stack>
+  );
+}

client/src/resources/equipment/EquipmentEdit.tsx

@@ -1,4 +1,5 @@
 import { DateInput, Edit, SelectInput, SimpleForm, TextInput as RaTextInput } from 'react-admin';
+import { EquipmentAttachmentInput } from './EquipmentAttachmentInput';
 import { equipmentStatusChoices } from './shared';
 
 const equipmentLabels = {
@@ -18,6 +19,7 @@ export function EquipmentEdit() {
         <RaTextInput source="name" label={equipmentLabels.name} />
         <RaTextInput source="serialNumber" label={equipmentLabels.serialNumber} />
         <SelectInput source="status" label={equipmentLabels.status} choices={equipmentStatusChoices} />
+        <EquipmentAttachmentInput />
       </SimpleForm>
     </Edit>
   );

client/src/resources/equipment/EquipmentList.tsx

@@ -3,6 +3,7 @@ import {
   Datagrid,
   DateField,
   FilterButton,
+  FunctionField,
   List,
   SelectArrayInput,
   SelectField,
@@ -34,6 +35,10 @@ export function EquipmentList() {
         <DateField source="dateOfInspection" />
         <DateField source="commissionedAt" />
         <SelectField source="status" choices={equipmentStatusChoices} />
+        <FunctionField
+          label="Файл"
+          render={(record: { attachment?: { objectKey?: string } | null }) => (record?.attachment?.objectKey ? '✓' : '—')}
+        />
       </Datagrid>
     </List>
   );

client/src/resources/equipment/EquipmentShow.tsx

@@ -1,4 +1,4 @@
-import { DateField, SelectField, Show, SimpleShowLayout, TextField } from 'react-admin';
+import { DateField, FunctionField, SelectField, Show, SimpleShowLayout, TextField } from 'react-admin';
 import { equipmentStatusChoices } from './shared';
 
 export function EquipmentShow() {
@@ -11,6 +11,18 @@ export function EquipmentShow() {
         <DateField source="dateOfInspection" />
         <DateField source="commissionedAt" />
         <SelectField source="status" choices={equipmentStatusChoices} />
+        <FunctionField
+          label="Вложение"
+          render={(record: { attachment?: { downloadUrl?: string | null; originalFileName?: string | null } | null }) =>
+            record?.attachment?.downloadUrl ? (
+              <a href={record.attachment.downloadUrl} target="_blank" rel="noreferrer">
+                {record.attachment.originalFileName || 'Скачать'}
+              </a>
+            ) : (
+              '—'
+            )
+          }
+        />
       </SimpleShowLayout>
     </Show>
   );