merge: retire Canvas inspiration entry

# Conflicts:
#	README.md
#	src/components/layout/MainLayout.tsx
#	src/components/layout/Sidebar.tsx
#	tests/e2e/image-workspace-v2.spec.ts
#	tests/unit/app-module-provider-gate.test.tsx
#	tests/unit/title-bar.test.tsx

src/components/layout/ImageWorkspaceSidebar.tsx

@@ -1,7 +1,6 @@
 import { useEffect, useMemo, useState } from 'react';
 import {
   FolderKanban,
-  Lightbulb,
   Loader2,
   Pencil,
   Plus,
@@ -157,15 +156,6 @@ export function ImageWorkspaceSidebar({ sidebarCollapsed }: ImageWorkspaceSideba
         >
           <Plus className="h-4 w-4" />
         </Button>
-        <Button
-          type="button"
-          variant="ghost"
-          size="icon"
-          aria-label="获取设计灵感"
-          onClick={() => navigate('/image-prompts')}
-        >
-          <Lightbulb className="h-4 w-4" />
-        </Button>
       </div>
     );
   }
@@ -181,14 +171,6 @@ export function ImageWorkspaceSidebar({ sidebarCollapsed }: ImageWorkspaceSideba
           <Plus className="h-4 w-4 text-brand" />
           新建设计项目
         </button>
-        <button
-          type="button"
-          className="motion-press flex min-h-9 w-full items-center gap-2 rounded-xl px-2.5 text-left text-sm text-muted-foreground transition-colors hover:bg-surface-subtle hover:text-foreground focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-brand/30"
-          onClick={() => navigate('/image-prompts')}
-        >
-          <Lightbulb className="h-4 w-4" />
-          获取灵感
-        </button>
       </div>
 
       <div className="mb-2 mt-5 flex items-center justify-between px-2">

src/components/layout/MainLayout.tsx

@@ -26,7 +26,6 @@ export function MainLayout() {
   });
   const activeModule = getAiModuleForPath(location.pathname);
   const isPaintingModule = activeModule === 'painting';
-  const isPromptMuseum = location.pathname === '/image-prompts' || location.pathname.startsWith('/image-prompts/');
   const isCanvasWorkspace = location.pathname === '/image-canvas';
   const isChatWorkspace = location.pathname === '/chat';
 
@@ -79,9 +78,8 @@ export function MainLayout() {
       <TitleBar
         integrated
         workspaceLayout={isChatWorkspace}
-        overlay={isPaintingModule && !isPromptMuseum}
+        overlay={isPaintingModule}
         showSidebarControls={!isCanvasWorkspace}
-        pageTitle={isPromptMuseum ? '获取灵感' : undefined}
         sidebarPeekOpen={sidebarPeekOpen}
         onSidebarPeekChange={handleSidebarPeekChange}
       />

src/components/layout/Sidebar.tsx

@@ -181,7 +181,6 @@ export function Sidebar({ workspaceLayout = false, sidebarPeekOpen = false, onSi
   const isProgrammingModule = activeModule === 'programming';
   const isPaintingModule = activeModule === 'painting';
   const isRobotModule = activeModule === 'robot';
-  const isPromptMuseum = location.pathname === '/image-prompts' || location.pathname.startsWith('/image-prompts/');
   const visibleProjects = projects;
   const selectedProjectFolderName = getFolderName(newProjectSelectedPath);
   const accountName = userProfile?.displayName?.trim() || getAuthUserDisplayName(authUser) || '未登录用户';
@@ -549,7 +548,7 @@ export function Sidebar({ workspaceLayout = false, sidebarPeekOpen = false, onSi
       <div
         className={cn(
           'bg-transparent px-3 text-foreground',
-          isPaintingModule && !isPromptMuseum && !sidebarCollapsed ? 'pb-2 pt-10' : 'py-2',
+          isPaintingModule && !sidebarCollapsed ? 'pb-2 pt-10' : 'py-2',
           sidebarCollapsed && 'px-2',
         )}
       >