4eccb1b5cd
DeepSeek's official API has a single endpoint, https://api.deepseek.com, with servers physically in China. There is no separate mainland endpoint, and api.deepseeki.com is a typo grandfathered into the source. The /zh/install "国内 API 访问" panel previously suggested users set a custom base_url to a China endpoint, which doesn't exist. Replace with the truth: the default works for mainland users; only override DEEPSEEK_BASE_URL if you have a private mirror. Also re-runs derive-facts to keep facts.generated.ts at 9 providers. Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>