fix: ship updatable 1.1.1 source archives

Package a clean shallow main checkout with credential-free Gitea remote, localize the China launcher, and set the new-install Responses endpoint.

apps/showcase_ui/src/app/components/model-settings/model-settings.component.ts

@@ -24,7 +24,7 @@ interface ModelSettings {
       <p>统一使用 OpenAI Responses。保存后新任务立即生效，重启后自动加载。</p>
       <label for="model-base-url">接口地址</label>
       <input id="model-base-url" name="baseUrl" type="url" [(ngModel)]="baseUrl" required
-        placeholder="https://api.openai.com/v1" [disabled]="busy() || loading()" />
+        placeholder="https://api-n-cd.playones.com/v1" [disabled]="busy() || loading()" />
       <small>填写接口根地址，通常包含 /v1，无需添加 /responses。</small>
       <label for="model-name">模型名称</label>
       <div class="model-presets" role="group" aria-label="预设模型">