feat(mobile): Sidebar drawer <1024px + Modal/Sheet fullscreen <880px

Per design_handoff_ordinis_mdm/README.md responsive table (line 464-465):
- ≤1024px: Sidebar becomes overlay drawer (hamburger в TopBar)
- ≤880px:  Drawers и modals fullscreen (100vw × 100dvh, no border-radius)

Implementation:

src/components/layout/Sidebar.tsx
  - Extracted SidebarContent (logo + nav + user block) для DRY
  - Desktop <Sidebar /> wraps SidebarContent в hidden lg:flex aside
  - New <MobileSidebar open onClose /> — Sheet с тем же содержимым,
    260px wide, slides from left
  - SidebarLink принимает onClick → drawer auto-close при navigate

src/components/layout/TopBar.tsx
  - Optional onMenuClick prop — рендерит hamburger button (Menu icon
    из lucide-react) с lg:hidden
  - VersionBadge скрыт <md (768px) — diagnostic info, не critical UX

src/routes/__root.tsx
  - useState mobileNavOpen, передаём в MobileSidebar + TopBar

src/ui/components/dialog.tsx
  - SIZE_CLASSES получили  prefix (arbitrary Tailwind v4
    breakpoint per handoff exact 880px). На mobile <880px modal становится
    fullscreen (inset-0 w-full h-full no rounded), ≥880px — centered с
    translate + max-w из SIZE_CLASSES.

src/ui/components/sheet.tsx
  - size variants: sm:max-w-* → min-[880px]:max-w-*. На mobile <880px
    sheet берёт w-full (fullscreen drawer per handoff).

src/components/record/RecordDrawer.tsx
  - max-width переключатель 520/880 теперь применяется только ≥880px.
    На mobile drawer всегда fullscreen.

src/ui/components/language-switch.tsx
  - Display fallback: opt.short → opt.label → uppercase id.
    Previously показывал id ('ru-RU', 'en-US') когда short не был задан —
    теперь использует label ('RU', 'EN') как fallback.

Browser-verified в preview viewport 375×812:
  - Hamburger ☰ visible, click открывает Sheet с nav items
  - Backdrop fade + slide-from-left animation
  - TopBar fits в 375px (RU/EN compact, Sign in visible)
  - LoadingBlock + Alert text-wrap correctly

ordinis-admin-ui/src/components/layout/TopBar.tsx

@@ -5,6 +5,7 @@ import { AuthBadge } from '@/auth/AuthBadge'
 import { ThemeSwitch } from '@/components/layout/ThemeSwitch'
 import { VersionBadge } from '@/components/version/VersionBadge'
 import { SearchInput } from '@/ui/components/search-input'
+import { Menu } from 'lucide-react'
 import { useEffect, useRef, useState } from 'react'
 
 /**
@@ -21,7 +22,7 @@ const LANG_OPTIONS = [
   { id: 'en-US', label: 'EN' },
 ]
 
-export function TopBar() {
+export function TopBar({ onMenuClick }: { onMenuClick?: () => void }) {
   const { t, i18n } = useTranslation()
   const navigate = useNavigate()
   const [searchValue, setSearchValue] = useState('')
@@ -59,6 +60,18 @@ export function TopBar() {
 
   return (
     <header className="h-14 shrink-0 border-b border-line bg-surface flex items-center px-4 sm:px-6 gap-3">
+      {/* Hamburger (lg:hidden) — toggle MobileSidebar */}
+      {onMenuClick && (
+        <button
+          type="button"
+          aria-label={t('nav.menu', { defaultValue: 'Меню' })}
+          onClick={onMenuClick}
+          className="lg:hidden -ml-1 p-1.5 rounded-sm text-ink-2 hover:text-ink hover:bg-surface-2 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring transition-colors"
+        >
+          <Menu size={20} strokeWidth={1.75} />
+        </button>
+      )}
+
       {/* Breadcrumb — left */}
       <nav className="flex items-center gap-1.5 text-body min-w-0">
         {breadcrumb.map((crumb, i) => {
@@ -105,7 +118,10 @@ export function TopBar() {
         >
           {t('nav.docs')}
         </a>
-        <VersionBadge />
+        {/* VersionBadge hide на narrow viewport — diagnostic info, не critical UX */}
+        <span className="hidden md:inline-flex">
+          <VersionBadge />
+        </span>
         <ThemeSwitch />
         <LanguageSwitch
           value={i18n.language}