feat(health+core+ai): 业务流程全面修复 Phase 4-6 + 集成测试修复

Phase 4 — Dead-letter 重试 + 内容推送 + 安全加固:
- erp-core: retry_dead_letters() 定时重试 + PII payload 脱敏
- erp-core: audit_service 哈希链定时验证 + 写入失败告警
- erp-health: article.published 消费者匹配 patient_tag 推送消息
- erp-health: care_plan 事件消费者 (激活通知 + 完成积分)

Phase 5 — 患者批量操作 + 咨询增强 + 护理事件:
- patient: batch_import_patients + bind_by_phone + refer_patient
- consultation: rate_session 满意度评价 (rating + feedback)
- consent: patient_sign_consent 患者端签署
- validation: source 枚举 (7值) + relationship 枚举 (7值) + 12 单元测试

Phase 6 — 咨询文件上传 + AI 引用标注:
- consultation_message: media_id 附件上传端点
- ai_suggestion: references JSONB + [ref:id] 格式引用标注
- AI system prompt 增加引用指令 + output_parser 提取逻辑

迁移: 000161 (media_id + references) + 000162 (rating + feedback)
集成测试: consultation/follow_up/pii_encryption 新字段同步修复
讨论文档: 2026-05-20-business-process-brainstorm.md (10域审核报告)

Cargo.lock

@@ -1429,6 +1429,7 @@ dependencies = [
  "handlebars",
  "hex",
  "redis",
+ "regex-lite",
  "reqwest",
  "sea-orm",
  "serde",
@@ -3980,6 +3981,12 @@ dependencies = [
  "regex-syntax",
 ]
 
+[[package]]
+name = "regex-lite"
+version = "0.1.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cab834c73d247e67f4fae452806d17d3c7501756d98c8808d7c9c7aa7d18f973"
+
 [[package]]
 name = "regex-syntax"
 version = "0.8.10"