文档(apps/pac-docs,首次纳入仓库):
- 接入/运维/参考全面重写,脱敏、对齐现有代码
- 运维拆为 部署/数据摄入/监控/故障排查;新增「设计系统·DESIGN.md」(三层 token + oklch)
- 过时文档归档 → docs/_archive;ADR → docs/adr

代码:
- perf(prisma): PrismaService 连接池按 PAC_COHORT_CONCURRENCY 自动推导 connection_limit(免手调)
- chore(prisma): schema 注释更正(payloadHash 不参与 source_event_id 合成)
- chore: docker-compose 增 pac-docs 服务
- 含 feat/tenant-group-p0 分支在途 WIP(pac-service / packages/types)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>