# ENGINEERING_SPEC — ECR-014 MembershipPlan

**Approved · coding（Loop）**

## Implement order

1. Migration `membership_plans` + permission 种子  
2. Repo/service/admin handlers  
3. Wire GrantMembership + membership CreateOrder  
4. OpenAPI · admin-h5 最小页  
5. Integration AC · TEST_REPORT · Closed

## Constraints

函数≤50 · 文件≤400 · 无真支付 · 无新 plan code