refactor(desktop/ui): 组件库对齐 shadcn 画廊基调

按已定稿的组件画廊精修 ui/ 基础组件（均走主题令牌，亮/暗自适应）：
- Button：主按钮去掉霓虹 shadow-glow（玩具感残留）→ 扁平 + active 微缩；
  次按钮落到 ink-850 表面。
- Input/Textarea/Select：底色对齐表面(ink-900) + 焦点环改 ring-2 ring-brand/25（更柔的聚焦）。
- 新增 Table/Tr/Td：细分隔线 + 弱化表头 + 行 hover，运维/数据场景标准呈现。
- EmptyState/Skeleton/Badge/Tabs/Card 已主题化，沿用。

页面经 ui/ 桶引入，组件升级即全页生效。tsc + 生产构建 + vitest 48 全过。

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

sundynix-desktop/frontend/src/ui/Button.tsx

@@ -9,8 +9,8 @@ const base =
   "inline-flex items-center justify-center gap-1.5 rounded-md font-medium transition select-none disabled:cursor-not-allowed disabled:opacity-40 focus:outline-none focus-visible:ring-2 focus-visible:ring-brand/50";
 
 const variants: Record<Variant, string> = {
-  primary: "bg-brand text-white hover:bg-brand-500 active:bg-brand-600 shadow-glow",
-  secondary: "border border-line bg-ink-800 text-slate-200 hover:bg-ink-700 hover:border-ink-600",
+  primary: "bg-brand text-white hover:bg-brand-500 active:scale-[0.98]",
+  secondary: "border border-line bg-ink-850 text-slate-200 hover:bg-ink-800 hover:border-ink-600",
   ghost: "text-slate-400 hover:bg-ink-800 hover:text-slate-200",
   danger: "border border-danger/50 text-danger hover:bg-danger/10",
 };

sundynix-desktop/frontend/src/ui/Input.tsx

@@ -4,7 +4,7 @@ import { cn } from "./cn";
 // 注意：基类不含宽度。宽度由调用方决定（Field 内为 flex-col 自动撑满，
 // 或显式 w-full / flex-1 / w-16），避免 w-full 与 flex-1/w-16 冲突塌陷。
 const fieldBase =
-  "rounded-md border border-line bg-ink-950 text-sm text-slate-200 placeholder:text-slate-600 transition focus:border-brand focus:outline-none focus:ring-1 focus:ring-brand/40 disabled:opacity-50";
+  "rounded-md border border-line bg-ink-900 text-sm text-slate-200 placeholder:text-slate-600 transition focus:border-brand focus:outline-none focus:ring-2 focus:ring-brand/25 disabled:opacity-50";
 
 export function Input({ className, ...rest }: InputHTMLAttributes<HTMLInputElement>) {
   return <input className={cn(fieldBase, "h-9 px-3", className)} {...rest} />;

sundynix-desktop/frontend/src/ui/Table.tsx

@@ -0,0 +1,34 @@
+import type { ReactNode } from "react";
+import { cn } from "./cn";
+
+// 轻量数据表格：细分隔线、左对齐表头(弱化)、行 hover。运维/数据场景的标准呈现。
+// 用法：<Table cols={["任务","状态","耗时"]}><Tr>...<Td>...</Td></Tr></Table>
+
+export function Table({ cols, children, className }: { cols: ReactNode[]; children: ReactNode; className?: string }) {
+  return (
+    <table className={cn("w-full border-collapse text-xs", className)}>
+      <thead>
+        <tr>
+          {cols.map((c, i) => (
+            <th key={i} className="border-b border-line px-2.5 py-2 text-left font-medium text-slate-500">
+              {c}
+            </th>
+          ))}
+        </tr>
+      </thead>
+      <tbody>{children}</tbody>
+    </table>
+  );
+}
+
+export function Tr({ children, onClick, className }: { children: ReactNode; onClick?: () => void; className?: string }) {
+  return (
+    <tr onClick={onClick} className={cn("border-b border-line/70 transition hover:bg-ink-800", onClick && "cursor-pointer", className)}>
+      {children}
+    </tr>
+  );
+}
+
+export function Td({ children, className }: { children: ReactNode; className?: string }) {
+  return <td className={cn("px-2.5 py-2 align-middle text-slate-300", className)}>{children}</td>;
+}

sundynix-desktop/frontend/src/ui/index.ts

@@ -4,6 +4,7 @@ export { Button } from "./Button";
 export { Input, Textarea, Select, Field } from "./Input";
 export { Card, Panel } from "./Card";
 export { Badge, Dot } from "./Badge";
+export { Table, Tr, Td } from "./Table";
 export { Tabs, type TabDef } from "./Tabs";
 export { Skeleton, EmptyState } from "./Feedback";
 export { Dialog, ConfirmFooter } from "./Dialog";