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- alibaba-coding-plan-cn / alibaba-token-plan-cn keep the shared intl key vars as ordered fallbacks after their dedicated *_CN_API_KEY, so users who set ALIBABA_CODING_PLAN_API_KEY / ALIBABA_TOKEN_PLAN_API_KEY for the CN endpoint keep working (the PR as filed dropped them). - list_authenticated_providers hides a '-cn' row whose only lit key vars are ones it shares with its non-CN sibling, unless that CN provider is the configured model.provider. With only the shared key: one row, not two; DASHSCOPE_API_KEY alone: 3 alibaba rows, not 4. - Docs: environment-variables.md, providers.md.