* docs: expand AGENTS.md with reader personas, format decisions, and checklist
Add documentation writing principles that were missing from the existing guide:
- Readers: two audience types (technical vs non-technical) with writing targets
- Authoring workflow: think before rewriting (understand → structure → fill)
- Kimi platform rules: strict separation of api.kimi.com vs api.moonshot.cn URLs
- Typography: forbid four-colon callout syntax (::::), note no nesting
- Writing style: one-idea-per-paragraph, map-before-detail structure, clarify
when to use lists vs prose (avoids confusion between 'no fragmentation'
and 'parallel content needs formatting')
- Format decisions: explicit rules for ordered list / unordered list / table / prose
- Cross-references: when links are required, anchor precision, inline vs next-steps
- Page structure: standard template and banner placement rule
- Content completeness: default to keeping everything, omissions need stated reasons
- Checklist: format violation quick-reference and Kimi-specific consistency checks
All existing rules are preserved unchanged (0 lines removed).
* docs: address review comments on AGENTS.md
- Fix "next steps" rule contradiction: replace blanket ban with "no nav
tip blocks"; `## Next steps` is allowed when related pages exist
- Fix checklist Base URL pointer: was pointing to locale index.md
(which has no platform table); now links to Kimi platform rules above
- Fix callout syntax rule: `::::` is valid as an outer nested fence
when correctly closed; ban only unclosed/mismatched fences
- Fix checklist code block rule: carry forward the existing exception
that natural-language prompt examples may omit the language tag
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Co-authored-by: qer <wbxl2000@outlook.com>