docs: swap desktop download with workspace URL refactor in v0.2.1

apps/web/features/landing/i18n/en.ts

@@ -288,7 +288,7 @@ export const en: LandingDict = {
           "GitHub Copilot CLI runtime support",
           "Cursor Agent CLI runtime support",
           "Pi agent runtime support",
-          "Desktop app download entry on the landing page",
+          "Workspace URL refactor — slug-first routing (`/{slug}/issues`) with legacy URL redirects",
         ],
         fixes: [
           "Codex threads resume across tasks on the same issue",

apps/web/features/landing/i18n/zh.ts

@@ -288,7 +288,7 @@ export const zh: LandingDict = {
           "支持 GitHub Copilot CLI 运行时",
           "支持 Cursor Agent CLI 运行时",
           "支持 Pi Agent 运行时",
-          "官网新增桌面应用下载入口",
+          "工作区 URL 改造——slug 优先路由（`/{slug}/issues`），旧链接自动重定向",
         ],
         fixes: [
           "Codex 同一 Issue 下跨任务恢复会话线程",