feat(ui): drop @nstart/ui dependency (Stage 3.9)

Все font cascade bugs из последних MR были вызваны @nstart/ui pollution
(Tektur inheritance от Card parent'ов, Onest font в Button, font-primary
class overrides). Решили обрезать раньше plan'а.

What changed:

New primitives (8 файлов в src/ui/components/):
  - panel.tsx           — container с border/surface
  - field.tsx           — FieldLabel/Hint/Error typography helpers
  - text-input.tsx      — Input + label/hint/error composite
  - table.tsx           — Table/TableHeader/Body/Row/HeaderCell/Cell/Empty
  - date-picker.tsx     — native <input type=date> wrapper с label/hint/error
  - multi-select.tsx    — Radix Popover + inline checkboxes
  - single-select.tsx   — native <select> с label/hint/error chrome
  - language-switch.tsx — segmented control в Tektur uppercase

Compatibility shims (existing components extended):
  - checkbox.tsx        — + label/description/error/onChange (nstart-compat
                          synthetic event), wrap в <label> когда есть chrome
  - modal.tsx           — + panelClassName / bodyClassName props
  - form-actions.tsx    — + align prop (start/end/between)
  - tabs-simple.tsx     — TabItem.count alias for .trailing (nstart-compat)
  - table TableHead     — alias TableHeaderCell с align prop

Barrel rewrite (src/ui/index.ts):
  - Удалён 'export * from @nstart/ui'
  - Explicit exports для всех 45+ нужных символов
  - SelectOption / MultiSelectOption / LanguageOption теперь {id, label}
    с optional 'value' alias — nstart-compat без массового codemod call-sites

styles.css cleanup:
  - Removed @import @nstart/ui/styles/{fonts,theme}.css
  - Removed @source nstart/dist directive (Tailwind v4 scan)
  - Removed --text-sm: 13px override (был костыль для @nstart/ui dist)
  - Legacy color tokens (--color-carbon/ultramarain/orbit/regolith/asteroid)
    sсодержали fallback mappings — оставлены, но callsites больше не используют

Codemod: 9 файлов конвертированы legacy colors → handoff tokens
  carbon → ink, ultramarain → accent, orbit → warn, regolith → line, asteroid → mute

main.tsx:
  - NStartUiProvider → TooltipProvider (Radix)
  - DatePickerProvider убран (наш DatePicker native, no provider needed)

routes/dictionaries.$name.tsx:
  - Removed useRef-based <input>.indeterminate hack
  - Radix Checkbox принимает checked='indeterminate' declaratively

package.json: -@nstart/ui (was 0.1.3)

Bundle impact:
  before: vendor-nstart-ui chunk = 1228 KB
  after:  no nstart chunk, всё в vendor-misc (+~70 KB Radix wrappers)
  net savings: ~1.15 MB minified, ~440 KB gzip

Tests: 116 pass (1 fixed: tab role from 'button' → 'tab', Radix semantically correct).
TS strict: clean.
Browser-verified (preview): 7 utilities computed correctly, nstart bundle absent.

ordinis-admin-ui/src/ui/components/table.tsx

@@ -0,0 +1,156 @@
+import * as React from 'react'
+import { cn } from '@/lib/utils'
+
+/**
+ * Table primitives — shadcn-style atomic wrappers. Замена @nstart/ui Table*.
+ *
+ * <p>Per handoff: table cell text = text-cell (12.5/500). Применяется на
+ * &lt;td/th&gt; через CSS rule в `<tbody>` — но проще baked-in via TableCell
+ * className. Caller может override через className prop.
+ *
+ * <p>TableEmpty — single full-width row для empty state.
+ */
+
+export const Table = React.forwardRef<HTMLTableElement, React.HTMLAttributes<HTMLTableElement>>(
+  function Table({ className, ...props }, ref) {
+    return (
+      <div className="w-full overflow-x-auto">
+        <table
+          ref={ref}
+          className={cn('w-full caption-bottom text-cell', className)}
+          {...props}
+        />
+      </div>
+    )
+  },
+)
+
+export const TableHeader = React.forwardRef<
+  HTMLTableSectionElement,
+  React.HTMLAttributes<HTMLTableSectionElement>
+>(function TableHeader({ className, ...props }, ref) {
+  return (
+    <thead
+      ref={ref}
+      className={cn('[&_tr]:border-b [&_tr]:border-line', className)}
+      {...props}
+    />
+  )
+})
+
+export const TableBody = React.forwardRef<
+  HTMLTableSectionElement,
+  React.HTMLAttributes<HTMLTableSectionElement>
+>(function TableBody({ className, ...props }, ref) {
+  return (
+    <tbody
+      ref={ref}
+      className={cn('[&_tr:last-child]:border-0', className)}
+      {...props}
+    />
+  )
+})
+
+export const TableFooter = React.forwardRef<
+  HTMLTableSectionElement,
+  React.HTMLAttributes<HTMLTableSectionElement>
+>(function TableFooter({ className, ...props }, ref) {
+  return (
+    <tfoot
+      ref={ref}
+      className={cn(
+        'border-t border-line bg-surface-2 font-medium [&>tr]:last:border-b-0',
+        className,
+      )}
+      {...props}
+    />
+  )
+})
+
+export const TableRow = React.forwardRef<HTMLTableRowElement, React.HTMLAttributes<HTMLTableRowElement>>(
+  function TableRow({ className, ...props }, ref) {
+    return (
+      <tr
+        ref={ref}
+        className={cn(
+          'border-b border-line transition-colors hover:bg-surface-2/40 data-[state=selected]:bg-accent-bg',
+          className,
+        )}
+        {...props}
+      />
+    )
+  },
+)
+
+export type TableHeaderCellProps = React.ThHTMLAttributes<HTMLTableCellElement> & {
+  align?: 'left' | 'center' | 'right'
+}
+
+export const TableHeaderCell = React.forwardRef<HTMLTableCellElement, TableHeaderCellProps>(
+  function TableHeaderCell({ className, align = 'left', ...props }, ref) {
+    return (
+      <th
+        ref={ref}
+        className={cn(
+          'h-9 px-3 align-middle text-cap text-mute',
+          align === 'right' && 'text-right',
+          align === 'center' && 'text-center',
+          align === 'left' && 'text-left',
+          '[&:has([role=checkbox])]:pr-0',
+          className,
+        )}
+        {...props}
+      />
+    )
+  },
+)
+// Alias for shadcn convention.
+export const TableHead = TableHeaderCell
+
+export const TableCell = React.forwardRef<
+  HTMLTableCellElement,
+  React.TdHTMLAttributes<HTMLTableCellElement>
+>(function TableCell({ className, ...props }, ref) {
+  return (
+    <td
+      ref={ref}
+      className={cn('px-3 py-2 align-middle [&:has([role=checkbox])]:pr-0', className)}
+      {...props}
+    />
+  )
+})
+
+export const TableCaption = React.forwardRef<
+  HTMLTableCaptionElement,
+  React.HTMLAttributes<HTMLTableCaptionElement>
+>(function TableCaption({ className, ...props }, ref) {
+  return (
+    <caption
+      ref={ref}
+      className={cn('mt-3 text-cell text-mute', className)}
+      {...props}
+    />
+  )
+})
+
+/**
+ * TableEmpty — full-width row с заглушкой "ничего не найдено".
+ * Замена @nstart/ui TableEmptyRow API: <TableEmpty colSpan={N}>{text}</TableEmpty>.
+ */
+export type TableEmptyProps = React.TdHTMLAttributes<HTMLTableCellElement> & {
+  colSpan: number
+}
+
+export function TableEmpty({ colSpan, className, children, ...props }: TableEmptyProps) {
+  return (
+    <tr>
+      <td
+        colSpan={colSpan}
+        className={cn('py-10 text-center text-cell text-mute', className)}
+        {...props}
+      >
+        {children}
+      </td>
+    </tr>
+  )
+}