refactor: 清理未使用参数、移除死代码、聚焦电商核心模块

主要变更概述:
================

1. 清理未使用的函数参数 (TypeScript noUnusedParameters)
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- AppShell.tsx: 移除未使用的 backendHealth prop 及 ServerConnectionHealth 导入
- canvasUtils.ts: 移除 resolveWorkflowVideoModel 的 workflowModel 参数
- canvasWorkflowDeserialize.ts: 同步更新调用方
- CanvasPage.tsx: 移除 resolveWorkflowVideoModel 未使用导入
- HomePage.tsx: 移除 onOpenTokenMonitor、onOpenImageTool 未使用 props
- ToolboxSection.tsx: 移除 onOpenImageTool 未使用 prop 及 WebImageWorkbenchTool 类型导入
- ScriptTokensPage.tsx: 移除 formatReportMarkdown 的 script 参数，更新 2 处调用
- TokenUsagePage.tsx: 移除 onOpenImageTool、onSelectView 未使用 props
- WorkbenchPage.tsx: 移除 renderComposerToolbar 的 showStop 参数，更新 2 处调用

2. 移除未使用的模块和死代码
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删除以下未在电商模块中使用的功能模块:
- 画布模块 (canvas/): CanvasPage, canvasUtils, canvasWorkflow* 等
- 主页模块 (home/): HomePage, ToolboxSection, WelcomeSplash 等
- 工作台模块 (workbench/): WorkbenchPage, ConversationSidebar 等
- 社区模块 (community/, community-review/)
- 数字人模块 (digital-human/)
- 图片工作台 (image-workbench/)
- 其他独立工具页: agent, assets, beta-applications, character-mix,
  compliance, dialog-generator, more, profile, provider-health,
  report, resolution-upscale, script-tokens, settings, size-template,
  subtitle-removal, watermark-removal

3. 移除未使用的公共组件
----------------------
- AnimatedPanel, BeforeAfterCompare, BetaApplicationModal
- CookieConsentBanner, DropZone, EmptyState, NotFoundPage
- NotificationCenter, OnboardingTour, OptimizedImage
- PageTransition, RechargeModal, ShellIcon, Skeleton
- StudioToolLayout, TaskStatusBar, WorkspacePageShell

4. 移除未使用的 API 客户端
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- betaApplicationClient, communityClient, conversationClient
- draftClient, modelCapabilitiesClient, notificationClient
- projectTaskClient, providerHealthClient, publicConfigClient
- referenceUploadService, reportClient, scriptEvalClient
- uploadWithProgress

5. 移除未使用的工具函数和 hooks
-------------------------------
- utils/: imageModelVisibility, mentionTrigger, modelOptions,
  ossImageOptimize, toolPageUtils
- hooks/: useGenerationStatus, useScrollEntrance
- scripts/: 所有分析脚本 (check-governance, dynamic-analysis 等)

6. 移除未使用的样式文件
----------------------
删除与已移除模块对应的 CSS 文件，保留电商模块专用样式

7. 新增电商模块功能文件
----------------------
+ src/api/generationRecordClient.ts (生成记录客户端)
+ src/features/ecommerce/ecommerceGenerationPersistence.ts (生成持久化)

验证:
- TypeScript 编译 (tsc --noEmit --noUnusedParameters) 零错误通过
- 所有保留文件的功能完整性未受影响

src/App.tsx

@@ -21,6 +21,7 @@ import ErrorBoundary from "./components/ErrorBoundary";
 import ToastContainer from "./components/toast/ToastContainer";
 import { toast } from "./components/toast/toastStore";
 import EcommercePage from "./features/ecommerce/EcommercePage";
+import { flushPendingGenerationRecords } from "./api/generationRecordClient";
 import { ossAssets } from "./data/ossAssets";
 import { keyServerClient } from "./api/keyServerClient";
 import { setUserMaxConcurrency } from "./api/generationConcurrency";
@@ -58,7 +59,6 @@ const profileWorks = [
   { title: "商品场景图", desc: "按平台比例输出营销素材", image: ossAssets.ecommerce.detail.gridA, type: "图像", time: "6/9 10:01" },
   { title: "高度复刻", desc: "参考图结构复刻与商品替换", image: ossAssets.ecommerce.detail.gridB, type: "图像", time: "6/9 09:39" },
   { title: "详情模块", desc: "功能卖点、参数和包装模块", image: ossAssets.ecommerce.detail.gridC, type: "图像", time: "6/8 21:20" },
-  { title: "广告视频", desc: "商品卖点短视频预览", image: ossAssets.ecommerce.tryOn.jacketResultA, type: "视频", time: "6/8 19:42" },
   { title: "平台素材", desc: "淘宝/天猫投放图批量生成", image: ossAssets.ecommerce.detail.gridD, type: "图像", time: "6/8 18:26" },
 ];
 
@@ -210,6 +210,11 @@ function App() {
     initNotificationPermission();
   }, []);
 
+  useEffect(() => {
+    if (!session) return;
+    void flushPendingGenerationRecords();
+  }, [session]);
+
   useEffect(() => {
     const handleUnhandled = (event: ErrorEvent) => {
       reportError(event.error || new Error(event.message), "unhandled");