feat: 土豆儿分析简历时自动创建话题

[lishuceo]

Summary

• PM persona (土豆儿) 新增简历分析规则：当用户要求分析简历时，自动先创建话题再在话题中分析
• 修改文件：config/personas/pm.md，在"何时创建话题"部分新增第 4 条规则

Test plan

• 在群里 @土豆儿 发送简历让其分析，验证是否先创建话题
• 验证普通问答不会触发创建话题

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[claude]

Claude finished @lishuceo's task in 36s —— View job

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PR Review: feat: 土豆儿分析简历时自动创建话题

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• Read CLAUDE.md and understand project
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✅ Approved — Clean, minimal change.

The PR adds rule #4 to the "何时创建话题" section in config/personas/pm.md, instructing the PM persona to auto-create a discussion thread before analyzing resumes.

Assessment:

• The new rule is consistent in style and format with the existing 3 rules (lines 55-57)
• It correctly references the start_discussion_thread tool name
• The placement (before the "大多数情况不需要创建话题" disclaimer) is appropriate
• No code logic changes — persona config only, so no test impact

No issues found (confidence ≥ 75). LGTM.