test+ci: 51 frontend unit-тестов (Vitest) + CI rollback на single resolve-tag

Tests (Vitest):
- src/lib/dates.ts (вынесено из SchemaDrivenForm + dictionaries.$name): parseFormDate,
  formatIsoDate, formatIsoDateTime, extractTime, combineDateTime, localTzOffset, nowIsoLocal
- src/lib/dates.test.ts (20 tests): TZ-safety, pure-date local midnight, far-future filter,
  round-trip parse/format, time extraction в local TZ, clear-button (null Date → '')
- src/components/schema/types.test.ts (31 tests): buildSchemaJson всех 9 kinds + x-unique +
  x-id-source, parseSchemaJson roundtrip, diffSchemas (8 breaking detection cases),
  suggestVersionBump (major/minor/patch + breaking-wins-mix)

CI:
- Откатил dual resolve-tag (BACKEND/FRONTEND) на single resolve-tag.
  GitLab variable interpolation в trigger jobs не подхватывает dotenv от needs-job
  → admin-ui-only push не доезжал до infra. Now backwards compat path работает
  как раньше с UPSTREAM_IMAGE_TAG.
- Backend docker jobs (maven-package + 4 docker-*) теперь без rules:changes —
  catch ImagePullBackOff если frontend push шёл без backend rebuild. BuildKit cache
  делает повторный билд идентичных layers ~30 sec.
- Path-filter оставлен на maven-test (тесты не запускаются на frontend-only PR
  — они бэкендовые) и на docker-admin-ui (frontend-only).

Run: pnpm test → 51 passed.

ordinis-admin-ui/src/components/form/SchemaDrivenForm.tsx

@@ -21,6 +21,13 @@ import {
   type TabItem,
 } from '@nstart/ui'
 import type { CreateRecordRequest, JsonSchema } from '@/api/client'
+import {
+  combineDateTime,
+  extractTime,
+  formatIsoDate,
+  formatIsoDateTime,
+  parseFormDate,
+} from '@/lib/dates'
 
 type FormValues = {
   businessKey: string
@@ -49,57 +56,6 @@ const isLocalized = (s: JsonSchema): boolean => Boolean(s['x-localized'])
 const humanize = (key: string): string =>
   key.replace(/[_-]+/g, ' ').replace(/\b\w/g, (ch) => ch.toUpperCase())
 
-const parseFormDate = (s: unknown): Date | null => {
-  if (typeof s !== 'string' || !s) return null
-  // Pure date "YYYY-MM-DD" парсим как локальную полуночь, иначе для TZ западнее
-  // UTC new Date() уедет на день назад. Для строк с временем — стандартный парс.
-  const pureDate = /^(\d{4})-(\d{2})-(\d{2})$/.exec(s)
-  const d = pureDate
-    ? new Date(Number(pureDate[1]), Number(pureDate[2]) - 1, Number(pureDate[3]))
-    : new Date(s)
-  if (Number.isNaN(d.getTime())) return null
-  if (d.getFullYear() >= 9999) return null
-  return d
-}
-
-const formatIsoDate = (d: Date): string => {
-  const pad = (n: number) => String(n).padStart(2, '0')
-  return `${d.getFullYear()}-${pad(d.getMonth() + 1)}-${pad(d.getDate())}`
-}
-
-const localTzOffset = (d: Date): string => {
-  const pad = (n: number) => String(n).padStart(2, '0')
-  const total = -d.getTimezoneOffset()
-  const sign = total >= 0 ? '+' : '-'
-  const abs = Math.abs(total)
-  return `${sign}${pad(Math.floor(abs / 60))}:${pad(abs % 60)}`
-}
-
-const formatIsoDateTime = (d: Date, time: string = '00:00'): string => {
-  const pad = (n: number) => String(n).padStart(2, '0')
-  const [hh, mm] = time.split(':').map(Number)
-  const local = new Date(d.getFullYear(), d.getMonth(), d.getDate(), hh || 0, mm || 0, 0)
-  return `${formatIsoDate(local)}T${pad(local.getHours())}:${pad(local.getMinutes())}:00${localTzOffset(local)}`
-}
-
-const extractTime = (s: string | undefined, fallback: string): string => {
-  if (!s) return fallback
-  const d = new Date(s)
-  if (Number.isNaN(d.getTime())) return fallback
-  const pad = (n: number) => String(n).padStart(2, '0')
-  return `${pad(d.getHours())}:${pad(d.getMinutes())}`
-}
-
-const combineDateTime = (
-  d: Date | null,
-  time: string,
-  _current: string,
-): string => {
-  if (!d) return ''
-  const safeTime = /^\d{2}:\d{2}$/.test(time) ? time : '00:00'
-  return formatIsoDateTime(d, safeTime)
-}
-
 const isDateFormat = (s: JsonSchema): boolean =>
   s.type === 'string' && (s.format === 'date' || s.format === 'date-time')