报价单 Java 快照（按步追加）

快照策略：见上级 ../README.md。本目录现有文件为方案探索阶段拷贝；正式实施时以 06-steps.md 各步「快照清单」为准，缺什么用 scripts/snapshot-java.sh 补什么。

Python 落点

Java	Python
`CrmQuoteServiceImpl`	`backend/app/crud/crm/quote.py`
`CrmQuoteProductServiceImpl`	`backend/app/crud/crm/quote_product.py`
`CrmQuoteApprovalServiceImpl`	`backend/app/crud/crm/quote_approval.py`
`CrmQuoteShareLogServiceImpl`	`backend/app/crud/crm/quote_share_log.py`
`CrmQuotePdfServiceImpl`	`backend/app/services/crm_quote_pdf.py`
`CrmQuote*Controller`	`backend/app/api/crm.py`

翻译进度：docs/crm-migration/plans/quote/04-api-spec.md