fix(hotdocs): SSR fetch 加 InvolutionHell-SSR UA 让 CF 放行#327
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longsizhuo merged 1 commit intomainfrom Apr 27, 2026
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故障 首页右侧 "Hot This Week / 本周最热" 一直显示 "暂无数据"。 直接 curl 后端 /analytics/top-docs 是 200 + 5 条数据正常。 根因 其他 SSR fetcher（fetchProfile / events / feed）都带 "InvolutionHell-SSR/1.0 (+https://involutionhell.com)" UA，匹配 CF Custom Rule 跳过 Bot Fight。HotDocsPreview 之前没加 header，Vercel runner 默认 "node" UA 不匹配规则，按 IP 信誉被拦回 403/empty → catch 返 [] → "暂无数据"。 本 PR 跟其他 SSR fetcher 完全对齐，加 accept + user-agent header。
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Pull request overview
This PR fixes the homepage “Hot This Week / 本周最热” SSR data fetch being blocked by Cloudflare by adding the expected SSR User-Agent token so CF custom rules can allow the request through.
Changes:
- Add
User-Agent: InvolutionHell-SSR/1.0 (+https://involutionhell.com)to the Hot Docs SSR fetch request. - Add
Accept: application/jsonheader (consistent with other SSR fetchers) and document the Cloudflare rationale inline.
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故障
首页右上角 Hot This Week / 本周最热 一直 "暂无数据"。
（用户截图说"Top Rank 是空的"实际是看花眼了——左侧 Top Rank 早就有 TSK-Glofy 130 PTS / 0dysseus13 100 / duang3457 80 三张卡片，空的是右侧 Hot Docs 区块。）
根因
直接 `curl https://api.involutionhell.com/analytics/top-docs?window=7d&limit=5\` 200 + 5 条数据正常。
`HotDocsPreview.tsx` 的 SSR fetch 没带 UA header，Vercel runner 默认 `node` UA 不匹配你 CF 的 Custom Rule（`UA contains "InvolutionHell-SSR" → Skip Bot Fight`），按 IP 信誉被拦下回 403/empty → catch 返 `[]` → "暂无数据"。
代码库其他 SSR fetcher 都已经带 `InvolutionHell-SSR/1.0` UA：
唯独 HotDocsPreview 漏了。本 PR 补齐。
Test plan