[变更性质] feat(frontend)

[新增功能] 12 页面组件全量 shadcn：Card/Button/Table/Tabs/Select/Alert；375 底部 Tab Bar 改用 Tabs 组件实现
[实现方案] 页面级手写 class 全部移除（.btn/.banner/table.data/.badge/.tabs/.metric-row/.m-tile/.hint 等改为 shadcn + tailwind 工具类）；Modal/DatasetWizard/DatasetCard/DiffView/CodeEditor/Status/Layout 同步
[影响范围] src/pages/*.svelte、src/components/*.svelte

1 files changed, 76 insertions, 268 deletions

diff --git a/frontend/src/components/Layout.svelte b/frontend/src/components/Layout.svelte
index ddd5090..18a79a2 100644
--- a/frontend/src/components/Layout.svelte
+++ b/frontend/src/components/Layout.svelte
@@ -5,6 +5,8 @@
   import { postLogout } from '../lib/client';
   import { projectsStore, projectOf, projectInvisible } from '../lib/listsStore.svelte';
   import { Button } from '$lib/components/ui/button';
+  import * as Tabs from '$lib/components/ui/tabs';
+  import { Separator } from '$lib/components/ui/separator';
 
   interface Props {
     route: Route;
@@ -55,9 +57,7 @@
     if (id && !activeProject) void projectsStore.ensure(id).catch(() => undefined);
   });
 
-  // ---- 移动端导航重设计（375 → 底部 Tab Bar）----
-  // 小型 matchMedia 反应式：jsdom 没有布局，真实渲染断言
-  // （mobileTabbar.test.ts）通过 matchMedia stub 驱动 phone/桌面两种形态。
+  // ---- 移动端导航（≤767px 底部 Tab Bar，shadcn Tabs 组件实现）----
   import { onDestroy } from 'svelte';
   let phoneMode = $state(false);
   let mqListener: ((e: MediaQueryListEvent) => void) | null = null;
@@ -90,301 +90,109 @@
   const activeTab = $derived(
     isProject || route.name === 'admin' ? 'projects' : route.name === 'account' ? 'account' : route.name
   );
+
+  const navLinkBase = 'block rounded-md py-1.5 px-2 text-sm no-underline hover:text-foreground';
 </script>
 
-<div class="layout">
+<div class="grid min-h-screen grid-cols-1 md:grid-cols-[208px_minmax(0,1fr)]">
   {#if mobile}
-    <header class="topbar" data-testid="mobile-topbar">
-      <span class="topbar-brand">策研 <em>Strategy Lab</em></span>
+    <header
+      class="sticky top-0 z-30 flex items-center gap-2 min-h-10 px-2.5 border-b border-border bg-sidebar/90 backdrop-blur font-sm text-[0.85rem]"
+      data-testid="mobile-topbar"
+    >
+      <span class="font-bold text-foreground whitespace-nowrap">策研 <em class="not-italic font-medium text-[0.62rem] text-muted-foreground block">Strategy Lab</em></span>
       {#if isProject}
-        <span class="topbar-crumb" aria-label="当前项目">{activeProject?.name ?? '项目'} · {projectNav.find(([t]) => t === projectTab)?.[1] ?? ''}</span>
+        <span class="flex-1 min-w-0 truncate text-center font-semibold text-foreground" aria-label="当前项目">{activeProject?.name ?? '项目'} · {projectNav.find(([t]) => t === projectTab)?.[1] ?? ''}</span>
       {/if}
-      <button class="topbar-me" onclick={() => go('/account')} aria-label="账户与安全">
+      <Button variant="ghost" size="icon-sm" onclick={() => go('/account')} aria-label="账户与安全">
         <svg viewBox="0 0 24 24" width="18" height="18" aria-hidden="true"><circle cx="12" cy="8" r="4" fill="none" stroke="currentColor" stroke-width="2"/><path d="M4 21c0-4 4-6 8-6s8 2 8 6" fill="none" stroke="currentColor" stroke-width="2"/></svg>
-      </button>
+      </Button>
     </header>
   {/if}
 
-  <aside class="sidebar" aria-label="全局导航">
-    <a href="#/projects" class="brand">
-      <span class="brand-mark" aria-hidden="true"></span>
-      <span class="brand-text">策研 <span class="brand-sub">Strategy Lab</span></span>
+  <aside
+    class="bg-sidebar border-b md:border-b-0 md:border-r border-border md:sticky md:top-0 md:overflow-y-auto md:h-screen max-md:hidden flex flex-row md:flex-col flex-wrap md:flex-nowrap items-center md:items-stretch gap-1 md:gap-2 px-2 md:px-3 py-2 md:py-3"
+    aria-label="全局导航"
+  >
+    <a href="#/projects" class="flex items-center gap-1.5 py-1 px-1 pb-1 border-b border-border mb-1 no-underline w-full text-foreground">
+      <span class="size-5 rounded-lg bg-primary shrink-0" aria-hidden="true"></span>
+      <span class="font-bold text-[0.98rem] tracking-tight">策研 <span class="text-muted-foreground/70 font-medium text-[0.68rem] block">Strategy Lab</span></span>
     </a>
 
     {#if isProject}
-      <div class="projctx">
-        <div class="nav-title">当前项目</div>
-        <div class="projname">{activeProject?.name ?? (projectHidden ? '不可见项目' : '加载中…')}</div>
+      <div class="flex flex-wrap md:block gap-0.5 w-full min-w-0">
+        <div class="hidden md:block text-[0.68rem] uppercase tracking-widest text-muted-foreground px-1 pt-1 pb-0.5 font-bold">当前项目</div>
+        <div class="font-semibold px-1.5 pt-0.5 pb-1 text-[0.9rem] break-all text-foreground md:max-md:w-full">{activeProject?.name ?? (projectHidden ? '不可见项目' : '加载中…')}</div>
         {#each projectNav as [t, label] (t)}
           <a
-            class="navlink"
+            class={`${navLinkBase} text-[0.85rem] ${projectTab === t ? 'bg-primary text-primary-foreground font-semibold' : 'text-muted-foreground hover:bg-secondary'}`}
             href={`#/projects/${route.params.id}/${t}`}
             aria-current={projectTab === t ? 'page' : undefined}
           >{label}</a>
         {/each}
-        <div class="divider" aria-hidden="true"></div>
+        <Separator class="hidden md:block mx-2 my-2" />
       </div>
     {/if}
 
-    <div class="nav-title">工作台</div>
-    {#each topLeft as item (item.name)}
-      <a class="navlink" href={`#/${item.name}`} aria-current={route.name === item.name ? 'page' : undefined}>
-        {item.label}
-      </a>
-    {/each}
-
-    <div class="push"></div>
-    <div class="nav-title">账户</div>
-    {#each bottom as item (item.name)}
-      <a class="navlink" href={`#/${item.name}`} aria-current={route.name === item.name ? 'page' : undefined}>
-        {item.label}
-      </a>
-    {/each}
+    <div class="hidden md:block text-[0.68rem] uppercase tracking-widest text-muted-foreground px-1 pt-1 pb-0.5 font-bold">工作台</div>
+    <div class="flex flex-wrap md:flex-col gap-0.5">
+      {#each topLeft as item (item.name)}
+        <a class={`${navLinkBase} ${route.name === item.name ? 'bg-primary text-primary-foreground font-semibold' : 'text-muted-foreground hover:bg-secondary'}`} href={`#/${item.name}`} aria-current={route.name === item.name ? 'page' : undefined}>
+          {item.label}
+        </a>
+      {/each}
+    </div>
+
+    <div class="flex-1 md:min-h-4"></div>
+    <div class="hidden md:block text-[0.68rem] uppercase tracking-widest text-muted-foreground px-1 pt-1 pb-0.5 font-bold">账户</div>
+    <div class="flex flex-wrap md:flex-col gap-0.5">
+      {#each bottom as item (item.name)}
+        <a class={`${navLinkBase} ${route.name === item.name ? 'bg-primary text-primary-foreground font-semibold' : 'text-muted-foreground hover:bg-secondary'}`} href={`#/${item.name}`} aria-current={route.name === item.name ? 'page' : undefined}>
+          {item.label}
+        </a>
+      {/each}
+    </div>
     {#if session.me}
-      <div class="me">
-        <span class="me-name">{session.me.name}{session.me.role === 'admin' ? ' · 管理员' : ''}</span>
+      <div class="flex items-center justify-between gap-1 p-1 bg-secondary rounded-md text-[0.84rem] w-full">
+        <span class="truncate text-muted-foreground min-w-0">{session.me.name}{session.me.role === 'admin' ? ' · 管理员' : ''}</span>
         <Button variant="ghost" size="sm" onclick={() => logout()}>退出</Button>
       </div>
     {/if}
   </aside>
 
-  <main class="content" aria-label="主内容">
+  <main class="p-4 md:px-8 md:pt-6 max-w-[1360px] w-full min-w-0 pb-16 md:pb-12" aria-label="主内容">
     {@render children?.()}
   </main>
 </div>
 
 {#if mobile}
-  <nav class="tabbar" data-testid="mobile-tabbar" aria-label="底部导航">
-    {#each tabs as t (t.name)}
-      <a class="item" data-tab={t.name} href={`#/${t.name}`} aria-current={activeTab === t.name ? 'page' : undefined}>
-        {#if t.icon === 'project'}
-          <svg viewBox="0 0 24 24" aria-hidden="true"><rect x="3" y="4" width="18" height="16" rx="2" fill="none" stroke="currentColor" stroke-width="2"/><path d="M3 10h18" stroke="currentColor" stroke-width="2"/></svg>
-        {:else if t.icon === 'dataset'}
-          <svg viewBox="0 0 24 24" aria-hidden="true"><ellipse cx="12" cy="6" rx="8" ry="3" fill="none" stroke="currentColor" stroke-width="2"/><path d="M4 6v12c0 1.7 3.6 3 8 3s8-1.3 8-3V6" fill="none" stroke="currentColor" stroke-width="2"/></svg>
-        {:else if t.icon === 'run'}
-          <svg viewBox="0 0 24 24" aria-hidden="true"><path d="M4 20v-8" stroke="currentColor" stroke-width="2"/><path d="M9 20V4" stroke="currentColor" stroke-width="2"/><path d="M14 20v-6" stroke="currentColor" stroke-width="2"/><path d="M19 20V9" stroke="currentColor" stroke-width="2"/></svg>
-        {:else}
-          <svg viewBox="0 0 24 24" aria-hidden="true"><circle cx="12" cy="8" r="4" fill="none" stroke="currentColor" stroke-width="2"/><path d="M4 21c0-4 4-6 8-6s8 2 8 6" fill="none" stroke="currentColor" stroke-width="2"/></svg>
-        {/if}
-        <span class="tab-label">{t.label}</span>
-      </a>
-    {/each}
-  </nav>
+  <Tabs.Root
+    value={activeTab}
+    onValueChange={(v) => go(`/${v}`)}
+    data-testid="mobile-tabbar"
+    class="fixed left-0 right-0 bottom-0 z-40 flex items-stretch justify-around min-h-14 pb-[env(safe-area-inset-bottom,0)] bg-card/95 border-t border-border backdrop-blur"
+    aria-label="底部导航"
+  >
+    <Tabs.List variant="line" class="w-full max-w-none justify-around p-0 rounded-none h-auto">
+      {#each tabs as t (t.name)}
+        <Tabs.Trigger
+          value={t.name}
+          data-tab={t.name}
+          class="flex-1 min-h-14 flex-col gap-0.5 rounded-none text-[0.66rem] data-active:font-semibold"
+          aria-current={activeTab === t.name ? 'page' : undefined}
+        >
+          {#if t.icon === 'project'}
+            <svg viewBox="0 0 24 24" class="size-5" aria-hidden="true"><rect x="3" y="4" width="18" height="16" rx="2" fill="none" stroke="currentColor" stroke-width="2"/><path d="M3 10h18" stroke="currentColor" stroke-width="2"/></svg>
+          {:else if t.icon === 'dataset'}
+            <svg viewBox="0 0 24 24" class="size-5" aria-hidden="true"><ellipse cx="12" cy="6" rx="8" ry="3" fill="none" stroke="currentColor" stroke-width="2"/><path d="M4 6v12c0 1.7 3.6 3 8 3s8-1.3 8-3V6" fill="none" stroke="currentColor" stroke-width="2"/></svg>
+          {:else if t.icon === 'run'}
+            <svg viewBox="0 0 24 24" class="size-5" aria-hidden="true"><path d="M4 20v-8" stroke="currentColor" stroke-width="2"/><path d="M9 20V4" stroke="currentColor" stroke-width="2"/><path d="M14 20v-6" stroke="currentColor" stroke-width="2"/><path d="M19 20V9" stroke="currentColor" stroke-width="2"/></svg>
+          {:else}
+            <svg viewBox="0 0 24 24" class="size-5" aria-hidden="true"><circle cx="12" cy="8" r="4" fill="none" stroke="currentColor" stroke-width="2"/><path d="M4 21c0-4 4-6 8-6s8 2 8 6" fill="none" stroke="currentColor" stroke-width="2"/></svg>
+          {/if}
+          <span>{t.label}</span>
+        </Tabs.Trigger>
+      {/each}
+    </Tabs.List>
+  </Tabs.Root>
 {/if}
-
-<style>
-  .layout {
-    display: grid;
-    grid-template-columns: 208px minmax(0, 1fr);
-    min-height: 100vh;
-  }
-  .sidebar {
-    background: var(--sidebar);
-    border-right: 1px solid var(--border);
-    padding: 1rem 0.75rem;
-    display: flex;
-    flex-direction: column;
-    gap: 0.5rem;
-    position: sticky;
-    top: 0;
-    height: 100vh;
-    overflow-y: auto;
-  }
-  .brand {
-    display: flex;
-    align-items: center;
-    gap: 0.55rem;
-    padding: 0.3rem 0.4rem 0.6rem;
-    border-bottom: 1px solid var(--border);
-    margin-bottom: 0.4rem;
-    color: var(--foreground);
-  }
-  .brand:hover { text-decoration: none; }
-  .brand-mark {
-    width: 22px;
-    height: 22px;
-    border-radius: calc(var(--radius) * 1.2);
-    background: var(--primary);
-    flex-shrink: 0;
-    position: relative;
-    overflow: hidden;
-  }
-  .brand-mark::after {
-    content: '';
-    position: absolute;
-    inset: 4px;
-    background: linear-gradient(
-      to top,
-      transparent 4px,
-      #f0fdfa 4px,
-      #f0fdfa 7px,
-      transparent 7px,
-      transparent 11px,
-      #f0fdfa 11px,
-      #f0fdfa 15px,
-      transparent 15px
-    ) left/ 3px 100% no-repeat;
-    opacity: 0.9;
-  }
-  .brand-text { font-weight: 700; font-size: 0.98rem; letter-spacing: 0.01em; }
-  .brand-sub { color: var(--text-3); font-weight: 500; font-size: 0.68rem; display: block; }
-  .nav-title {
-    font-size: 0.68rem;
-    text-transform: uppercase;
-    letter-spacing: 0.08em;
-    color: var(--text-3);
-    padding: 0.35rem 0.5rem 0.1rem;
-    font-weight: 700;
-  }
-  .navlink {
-    display: block;
-    padding: 0.32rem 0.55rem;
-    border-radius: var(--radius);
-    color: var(--text-2);
-    font-size: 0.9rem;
-    line-height: 1.5;
-  }
-  .navlink:hover { background: var(--secondary); text-decoration: none; color: var(--foreground); }
-  .navlink[aria-current='page'] {
-    background: var(--primary);
-    color: var(--primary-foreground);
-    font-weight: 600;
-  }
-  .projctx .navlink { font-size: 0.85rem; }
-  .projname {
-    font-weight: 600;
-    padding: 0 0.6rem 0.25rem;
-    font-size: 0.9rem;
-    overflow-wrap: anywhere;
-    color: var(--foreground);
-  }
-  .divider {
-    height: 1px;
-    background: var(--border);
-    margin: 0.6rem 0.3rem;
-  }
-  .push { flex: 1; min-height: 1rem; }
-  .me {
-    display: flex;
-    align-items: center;
-    justify-content: space-between;
-    gap: 0.4rem;
-    padding: 0.4rem;
-    background: var(--secondary);
-    border-radius: var(--radius);
-    font-size: 0.84rem;
-  }
-  .me-name {
-    overflow: hidden;
-    text-overflow: ellipsis;
-    white-space: nowrap;
-    color: var(--text-2);
-    min-width: 0;
-  }
-  .content {
-    padding: 1.5rem 2rem 3rem;
-    max-width: 1360px;
-    width: 100%;
-    /* grid/flex children default to min-content sizing; without min-width:0 a
-       wide table cell propagates min-content into the column and inflates the
-       whole document (375px probe measured 552px). */
-    min-width: 0;
-  }
-  @media (max-width: 900px) {
-    .layout { grid-template-columns: minmax(0, 1fr); }
-    .sidebar {
-      position: static;
-      height: auto;
-      flex-direction: row;
-      flex-wrap: wrap;
-      align-items: center;
-      border-bottom: 1px solid var(--border);
-      border-right: none;
-      gap: 0.25rem;
-      min-width: 0;
-    }
-    .nav-title, .divider, .push { display: none; }
-    .navlink { padding: 0.45rem 0.7rem; }
-    /* the project tab row must wrap, not force one long line */
-    .projctx { display: flex; flex-wrap: wrap; gap: 0.25rem; min-width: 0; }
-    .projname { max-width: 100%; overflow-wrap: anywhere; }
-    .content { padding: 1.1rem 1rem 3rem; max-width: 100%; }
-  }
-
-  /* ---- 移动端形态（≤767px）：侧栏隐藏，底部 Tab Bar + 极窄标题栏 ---- */
-  @media (max-width: 767px) {
-    .layout { grid-template-columns: minmax(0, 1fr); }
-    .sidebar { display: none; }
-    .content { padding: 0.9rem 0.9rem 5.2rem; max-width: 100%; }
-  }
-  .topbar {
-    position: sticky;
-    top: 0;
-    z-index: 30;
-    display: flex;
-    align-items: center;
-    gap: 0.6rem;
-    min-height: 2.6rem;
-    padding: 0 0.9rem;
-    background: color-mix(in srgb, var(--sidebar) 92%, transparent);
-    backdrop-filter: blur(8px);
-    border-bottom: 1px solid var(--border);
-    font-size: 0.85rem;
-  }
-  .topbar-brand { font-weight: 700; color: var(--foreground); white-space: nowrap; }
-  .topbar-brand em { font-style: normal; font-weight: 500; font-size: 0.62rem; color: var(--text-3); display: block; }
-  .topbar-crumb {
-    flex: 1;
-    min-width: 0;
-    overflow: hidden;
-    text-overflow: ellipsis;
-    white-space: nowrap;
-    color: var(--foreground);
-    text-align: center;
-    font-weight: 600;
-  }
-  .topbar-me {
-    all: unset;
-    cursor: pointer;
-    display: inline-flex;
-    padding: 0.25rem;
-    border-radius: 999px;
-    color: var(--text-2);
-    transition: background-color 150ms ease, color 150ms ease;
-  }
-  .topbar-me:hover { background: var(--secondary); color: var(--primary); }
-
-  .tabbar {
-    position: fixed;
-    left: 0;
-    right: 0;
-    bottom: 0;
-    z-index: 40;
-    display: flex;
-    align-items: stretch;
-    justify-content: space-around;
-    min-height: 3.4rem;
-    padding-bottom: env(safe-area-inset-bottom, 0);
-    background: color-mix(in srgb, var(--surface) 96%, transparent);
-    border-top: 1px solid var(--border);
-    backdrop-filter: blur(8px);
-  }
-  .tabbar .item {
-    display: flex;
-    flex-direction: column;
-    align-items: center;
-    justify-content: center;
-    gap: 0.14rem;
-    flex: 1;
-    min-height: 3.4rem;
-    color: var(--text-3);
-    text-decoration: none;
-    font-size: 0.66rem;
-    transition: color 150ms ease, background-color 150ms ease;
-  }
-  .tabbar .item svg { width: 22px; height: 22px; display: block; }
-  .tabbar .item:hover { color: var(--text-2); text-decoration: none; }
-  /* 选中态：青绿强调色 */
-  .tabbar .item[aria-current='page'] { color: var(--primary); font-weight: 600; }
-  .tabbar .item[aria-current='page'] svg { color: var(--primary); }
-</style>