docs: make Web UI the primary onboarding path

docs/cordis-tutorial/index.i18n.yaml

@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write docs/cordis-tutorial/index.md
-index.md: fb700344e6d07d3864655009d2edac15ee9eede8
-index.zh.md: a68e931d81e745164d8f9a5dc7ec9aec4cd0e590
+index.md: a10a0f93fde4f710af2ab14f74b854ee07d7c03f
+index.zh.md: fb2c4f0959eab8c7a072c44207943c31b0bed8ea

docs/cordis-tutorial/index.md

@@ -10,7 +10,7 @@ If you want the condensed concept reference instead of a walkthrough, read the [
 
 ## Setup
 
-You need a clone of this repository with dependencies installed — the [quick start](../user/guide/quickstart.md) covers prerequisites. No API key is needed for this tutorial; every example runs keylessly.
+You need a clone of this repository with dependencies installed; the [development guide](../development.md#setup-tutorial) lists the prerequisites. No API key is needed for this tutorial; every example runs keylessly.
 
 ```sh
 git clone https://github.com/deepseek-ai/deepseek-harness.git

docs/cordis-tutorial/index.zh.md

@@ -10,7 +10,7 @@ Cordis 是 DeepSeek Harness SDK 底层的插件框架：它是一个小型运行
 
 ## 准备工作
 
-你需要克隆本仓库并安装依赖，具体前置条件见[快速入门](../user/guide/quickstart.md)。本教程不需要 API 密钥；所有示例均可在无密钥环境中运行。
+你需要克隆本仓库并安装依赖；[开发指南](../development.md#setup-tutorial)列出了前置条件。本教程不需要 API 密钥；所有示例均可在无密钥环境中运行。
 
 ```sh
 git clone https://github.com/deepseek-ai/deepseek-harness.git