fix(web): 1:1 对齐——页头通栏、内部滚动、侧栏菜单与详情导航

- Layout: screen 模式下约束 body/main 高度，恢复内容区内部滚动（原来内容把根撑高被裁切）
- Layout: contentOffset=88，滚动区从页头下方开始，内容不再从悬浮搜索框下穿过
- 页头改回通栏 60px（contained 只包页身）；资料卡头像恢复 64px 图标 + 品牌底色
- 详情导航条左右撑开（返回 / 面包屑），不再挤在左侧
- 侧栏菜单：行高 39、字重 500、圆角 8、CSS chevron、项间距 4px
- 服务面板去掉多余分隔线与外边距，恢复原高度

stash-web/src/components/sidebar/CategoryNav.tsx

@@ -66,7 +66,7 @@ export function CategoryNav({
 
   return (
     <Card padding="none" className="nav-card">
-      <Menu items={items} activeKey={activeKey} onSelect={handleSelect} />
+      <Menu items={items} activeKey={activeKey} onSelect={handleSelect} itemHeight={39} />
     </Card>
   )
 }

stash-web/src/components/sidebar/ProfileCard.tsx

@@ -1,4 +1,4 @@
-import { Avatar, Card, Paragraph, Tag, Text, Title } from '@stash/ui'
+import { Avatar, Card, Icon, Text, Title } from '@stash/ui'
 import { PLACEHOLDER_PROFILE } from '../../profile'
 
 /**
@@ -10,10 +10,14 @@ export function ProfileCard() {
 
   return (
     <Card padding="lg" className="profile-card">
-      <Avatar size="xl" tone="primary" fallback="S" verified />
+      <Avatar size="xl" tone="primary" icon={<Icon name="user_3_line" />} verified />
       <Title level={3}>{name}</Title>
-      {!name.includes(role) && <Tag shape="rounded">{role}</Tag>}
-      <Paragraph>{bio}</Paragraph>
+      <Text size="xs" tone="muted">
+        {role}
+      </Text>
+      <Text size="xs" tone="sub" className="profile-bio">
+        {bio}
+      </Text>
       <Text size="xs" tone="muted">
         IP 属地：{location}
       </Text>

stash-web/src/components/sidebar/ServicePanel.tsx

@@ -1,4 +1,4 @@
-import { Button, Card, Divider, Icon, Space, Tag, Text, Title } from '@stash/ui'
+import { Button, Card, Icon, Space, Tag, Text, Title } from '@stash/ui'
 import type { Project } from '../../api'
 
 /**
@@ -26,8 +26,6 @@ export function ServicePanel({ projects, live, refreshing, onRefresh }: ServiceP
         </Tag>
       </Space>
 
-      <Divider spacing="sm" />
-
       <div className="service-stats">
         <Space justify="between">
           <Text size="sm" tone="sub">
@@ -45,7 +43,7 @@ export function ServicePanel({ projects, live, refreshing, onRefresh }: ServiceP
         </Space>
       </div>
 
-      <Space gap="sm" wrap>
+      <div className="service-actions">
         <Button
           size="sm"
           variant="secondary"
@@ -61,7 +59,7 @@ export function ServicePanel({ projects, live, refreshing, onRefresh }: ServiceP
           <Icon name="link_3_line" />
           查看接口
         </a>
-      </Space>
+      </div>
     </Card>
   )
 }