update: update welcome card copy with new slogan

- Change kicker to 'DEPLOY ONCE, CODE EVERYWHERE'
- Update description to highlight cross-device workflow
- Update Chinese translations accordingly

Author: pallyoung

packages/web/src/features/welcome/index.test.tsx

@@ -93,7 +93,7 @@ describe("WelcomePage", () => {
       </Provider>
     );
 
-    expect(screen.getByText("GET STARTED")).toBeInTheDocument();
+    expect(screen.getByText("DEPLOY ONCE, CODE EVERYWHERE")).toBeInTheDocument();
     expect(screen.getByRole("heading", { name: "Welcome to Coder Studio" })).toBeInTheDocument();
     expect(screen.getByRole("button", { name: "Open Workspace" })).toBeInTheDocument();
     expect(screen.getByRole("button", { name: "Settings" })).toBeInTheDocument();

packages/web/src/locales/en.json

@@ -606,9 +606,9 @@
     "conflict": "Resource conflict"
   },
   "welcome": {
-    "kicker": "GET STARTED",
+    "kicker": "DEPLOY ONCE, CODE EVERYWHERE",
     "title": "Welcome to Coder Studio",
-    "description": "A local-first AI coding workbench. Launch AI agent sessions, review generated code, manage Git changes, and run terminals all in one place.",
+    "description": "Deploy your coding workspace once, then keep working from wherever you are. Same workspace, same context, across all your devices.",
     "features": {
       "agent_first": {
         "title": "Agent-first AI coding",

packages/web/src/locales/zh.json

@@ -606,9 +606,9 @@
     "conflict": "资源冲突"
   },
   "welcome": {
-    "kicker": "开始使用",
+    "kicker": "一次部署，随处编码",
     "title": "欢迎使用 Coder Studio",
-    "description": "一个本地优先的 AI 编码工作台。在同一个界面里启动 AI Agent 会话、审阅生成代码、管理 Git 变更并运行终端。",
+    "description": "只需部署一次编码工作区，即可在任何地方继续工作。同一个工作区，同一个上下文，跨所有设备。",
     "features": {
       "agent_first": {
         "title": "以 Agent 为核心的 AI 编码",