feat(brand): apply 森林AI identity

apps/web_v1/src/pages/projects/project-rail.tsx

@@ -1,6 +1,6 @@
 import type { CSSProperties } from 'react'
 import { Badge, Button, Layout, Space } from '@arco-design/web-react'
-import { IconCompass, IconDashboard, IconPlus } from '@arco-design/web-react/icon'
+import { IconCompass, IconPlus } from '@arco-design/web-react/icon'
 import type { Project, WorkbenchView } from './project-types'
 
 const { Sider } = Layout
@@ -26,10 +26,10 @@ export function ProjectRail({
     <Sider className="project-rail" width={96}>
       <Button
         className={activeView === 'workspace' ? 'dashboard-button active' : 'dashboard-button'}
-        icon={<IconDashboard />}
+        icon={<img className="brand-icon rail-brand-icon" src="/senlinai-icon.svg" alt="" aria-hidden="true" />}
         onClick={onSelectWorkspace}
-        aria-label="工作台"
-        title="工作台"
+        aria-label="森林AI 工作台"
+        title="森林AI 工作台"
       />
       <Button
         className={activeView === 'workspace-explore' ? 'dashboard-button active' : 'dashboard-button'}

apps/web_v1/src/pages/projects/project-topbar.tsx

@@ -11,8 +11,8 @@ export function ProjectTopbar({ theme, onToggleTheme }: { theme: Theme; onToggle
   return (
     <Header className="topbar">
       <div className="brand-lockup">
-        <span className="brand-symbol">S</span>
-        <Text className="brand-name">SenlinAI</Text>
+        <img className="brand-icon" src="/senlinai-icon.svg" alt="" aria-hidden="true" />
+        <Text className="brand-name">森林AI</Text>
       </div>
       <div className="global-search" role="search">
         <Input size="large" prefix={<IconSearch />} placeholder="搜索项目、频道、文档、任务、联系人..." />