优化结构

2026-08-21 09:07:33 +08:00
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+# Service Layer
+
+`service` adapts HTTP-facing DTOs to business usecases and owns application
+orchestration. Request/response/filter contracts live in `dto/`; the root
+package contains resource services, conversions, route metadata, and security
+coordination.
+
+`dto_alias.go` is a compatibility bridge for existing service callers. New
+transport code should import `service/dto` directly when it needs a contract.