#11299: docs(zh-CN): add missing translations for providers and start guides

## Summary Add Chinese (zh-CN) translations for 5 missing documentation files to achieve parity with English docs. ## Added Translations ### Providers (2 files) - `docs/zh-CN/providers/cloudflare-ai-gateway.md` - Cloudflare AI Gateway 配置指南 - `docs/zh-CN/providers/qianfan.md` - 百度千帆服务商指南 ### Start Guides (3 files) - `docs/zh-CN/start/bootstrapping.md` - Agent 引导流程 - `docs/zh-CN/start/wizard-cli-automation.md` - CLI 自动化入门 - `docs/zh-CN/start/wizard-cli-reference.md` - CLI 入门完整参考 ## Stats - 5 new files - ~528 lines of translated documentation ## Notes This PR brings the zh-CN documentation closer to parity with the English version. <!-- greptile_comment --> <h2>Greptile Overview</h2> <h3>Greptile Summary</h3> Adds five new Simplified Chinese documentation pages under `docs/zh-CN/` to bring translations closer to parity with the existing English docs. The new pages cover two providers (Cloudflare AI Gateway, Baidu Qianfan) and three onboarding/start guides (bootstrapping, CLI automation, CLI onboarding reference). These files mirror the structure and examples of their English counterparts under `docs/` (non-localized). <h3>Confidence Score: 5/5</h3> - This PR is safe to merge with minimal risk. - Changes are limited to adding new zh-CN documentation files. The content closely matches existing English docs and uses the same commands/flags and internal paths; no code or configuration logic is modified. - No files require special attention <!-- greptile_other_comments_section --> _{(3/5) Reply to the agent's comments like "Can you suggest a fix for this @greptileai?" or ask follow-up questions!} <!-- /greptile_comment -->