feat: searchable unit picker in the work form

Units dictionary has around a hundred entries; typing now filters the
list and Enter picks the first match. Only dictionary values can be
chosen, as before. Generic SearchableSelect lives in shared until the
ui-kit gets one.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

src/webparts/stroyBot/pages/works/WorkModal.tsx

@@ -2,6 +2,7 @@ import * as React from 'react';
 import { Alert, Button, Dialog, FormField, Select, TextInput } from '@tnsu/ui-kit';
 import { ITree } from '../_tree/treeRules';
 import { FormInput } from '../_tree/FormInput';
+import { SearchableSelect } from '../../shared/components/SearchableSelect';
 import { IWorkEditor } from './useWorkEditor';
 import { parentOptions, unitOptions } from './worksRules';
 import { IWork } from './worksTypes';
@@ -60,12 +61,15 @@ export const WorkModal: React.FC<Props> = ({ editor, tree, units, objectTitle })
           />
         </FormField>
         <FormField label={TEXTS.unit} htmlFor="work-unit" full>
-          <Select
+          <SearchableSelect
             id="work-unit"
             value={form.unit}
             onChange={(value) => setField('unit', value)}
             options={unitOptions(units, form.unit)}
             placeholder={TEXTS.unitPlaceholder}
+            searchPlaceholder={TEXTS.unitSearch}
+            notFoundText={TEXTS.unitNotFound}
+            clearLabel={TEXTS.cancel}
           />
         </FormField>
         <FormField label={TEXTS.volume} htmlFor="work-volume" full>
@@ -93,7 +97,14 @@ export const WorkModal: React.FC<Props> = ({ editor, tree, units, objectTitle })
           <TextInput id="work-start" type="date" value={form.start} onChange={(value) => setField('start', value)} />
         </FormField>
         <FormField label={TEXTS.finish} htmlFor="work-finish" full>
-          <TextInput id="work-finish" type="date" value={form.finish} onChange={(value) => setField('finish', value)} />
+          {/* min — календарь не даёт выбрать окончание раньше начала. */}
+          <TextInput
+            id="work-finish"
+            type="date"
+            value={form.finish}
+            min={form.start || undefined}
+            onChange={(value) => setField('finish', value)}
+          />
         </FormField>
         {editor.saveError && <Alert variant="err">{editor.saveError}</Alert>}
       </div>

src/webparts/stroyBot/pages/works/texts.ts

@@ -45,7 +45,10 @@ export const WORKS_TEXTS = {
     add: 'Добавить',
     save: 'Сохранить',
     saving: 'Сохранение...',
-    saveError: 'Ошибка при сохранении. Проверьте права доступа к Dataverse.'
+    saveError: 'Ошибка при сохранении. Проверьте права доступа к Dataverse.',
+    dateRangeError: 'Дата окончания не может быть раньше даты начала',
+    unitSearch: 'Начните вводить ед. изм.',
+    unitNotFound: 'Ничего не найдено'
   },
   confirmDelete: {
     title: 'Подтвердите удаление',