feat: remove Learning module

src/components/layout/LearningSidebar.tsx

@@ -1,37 +0,0 @@
-import { FolderKanban } from 'lucide-react';
-import { useLocation, useNavigate } from 'react-router-dom';
-import { cn } from '@/lib/utils';
-
-type LearningSidebarProps = {
-  sidebarCollapsed: boolean;
-};
-
-export function LearningSidebar({ sidebarCollapsed }: LearningSidebarProps) {
-  const navigate = useNavigate();
-  const location = useLocation();
-  const active = location.pathname === '/learning' || location.pathname.startsWith('/learning/project/');
-
-  return (
-    <nav data-testid="sidebar-learning-navigation" aria-label="AI 学习导航" className="px-1 py-1">
-      <button
-        type="button"
-        aria-label="学习项目"
-        aria-current={active ? 'page' : undefined}
-        onClick={() => navigate('/learning')}
-        className={cn(
-          'motion-press flex min-h-10 w-full items-center gap-2 rounded-lg px-2 py-2 text-left text-sm font-semibold transition-colors duration-100',
-          active ? 'bg-brand-soft text-foreground' : 'text-foreground hover:bg-surface-subtle',
-          sidebarCollapsed && 'justify-center px-0',
-        )}
-      >
-        <FolderKanban className="h-4 w-4 shrink-0 text-brand" />
-        {!sidebarCollapsed ? <span>学习项目</span> : null}
-      </button>
-      {!sidebarCollapsed ? (
-        <p className="px-2 pt-3 text-xs leading-5 text-muted-foreground">
-          阅读项目说明并下载到电脑实践。
-        </p>
-      ) : null}
-    </nav>
-  );
-}

src/components/layout/Sidebar.tsx

@@ -40,7 +40,6 @@ import { useCurrentUserProfile } from '@/hooks/use-current-user-profile';
 import type { SidebarPeekSource } from './sidebar-peek';
 import { ModuleSwitcher } from './ModuleSwitcher';
 import { ImageWorkspaceSidebar } from './ImageWorkspaceSidebar';
-import { LearningSidebar } from './LearningSidebar';
 import { SidebarUpdateButton } from './SidebarUpdateButton';
 import { UserAvatar } from '@/components/profile/UserAvatar';
 import { getAccountInitial } from '@/components/profile/user-avatar-utils';
@@ -185,7 +184,6 @@ export function Sidebar({ workspaceLayout = false, sidebarPeekOpen = false, onSi
   const activeModule = getAiModuleForPath(location.pathname);
   const isProgrammingModule = activeModule === 'programming';
   const isPaintingModule = activeModule === 'painting';
-  const isLearningModule = activeModule === 'learning';
   const isRobotModule = activeModule === 'robot';
   const isPromptMuseum = location.pathname === '/image-prompts' || location.pathname.startsWith('/image-prompts/');
   const projectConfigPath = '/project-config';
@@ -672,8 +670,6 @@ export function Sidebar({ workspaceLayout = false, sidebarPeekOpen = false, onSi
           ) : null}
         </div>
           </>
-        ) : isLearningModule ? (
-          <LearningSidebar sidebarCollapsed={sidebarCollapsed} />
         ) : (
           <div data-testid="sidebar-robot-navigation" className="px-2 py-3">
             <button