Host Frontend Static

SPA dist server for the Web shell: a function plugin (config `{distIndex}`) that claims the [webserver](../webserver/README.md)'s single fallback seat and serves the built frontend directory with explicit index entry points. While `distIndex` is readable, the dist root and configured index path render `index.html` with HTTP 200; other existing files are served directly. An absent or non-file target inside the dist root, including a missing configured index, returns an empty 404; traversal outside the dist root returns 403, unknown extensions ship as `application/octet-stream`, and non-GET/HEAD without a matching named route returns 405. Every successful index response is rendered through the webserver's `renderIndex` — structured injection rows first, then the raw index taps — which is how the boot manifest reaches the page. `distIndex` is an assembly fact of the composing application: [`dsh-web-app`](../../bundle/web-app/README.md) resolves it through the frontend package's exports and mounts this plugin; a deployment never hardcodes it.

• 适用 Agent：DeepSeek Harness
• 适配模型：DeepSeek

@deepseek-ai/dsh-host-frontend-static

暂无通过审核、可复现的同任务 A/B 运行证据；本档案仅证明来源可信，不代表实测有效。