Merge pull request '결제 전환 목표 아키텍처 정의 (1/2) (2/2)' (#4) from forge/iss-3f29c0d83954-attempt-1-run-62fa40d5b77b into main

.forge/iss-3f29c0d83954-attempt-1-run-62fa40d5b77b.md

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+# iss-3f29c0d83954-attempt-1-run-62fa40d5b77b
+
+Forge 이슈 작업 브랜치 `forge/iss-3f29c0d83954-attempt-1-run-62fa40d5b77b`.

.forge/iss-bae72bbf49e3-attempt-1-run-8e05b5645c4a.md

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-# iss-bae72bbf49e3-attempt-1-run-8e05b5645c4a
-
-Forge 이슈 작업 브랜치 `forge/iss-bae72bbf49e3-attempt-1-run-8e05b5645c4a`.

docs/architecture/package-map.md

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+# 패키지 맵
+
+| 패키지         | 책임                                           | 금지 의존성       |
+|----------------|----------------------------------------------|------------------|
+| controller      | 외부 요청 수신 및 처리                       | repository        |
+| service         | 비즈니스 로직 수행 및 데이터 처리           | integration       |
+| repository      | 데이터 저장소와의 상호작용                 | controller, domain |
+| domain          | 핵심 비즈니스 도메인 모델                  | integration       |
+| integration     | 외부 서비스와의 통신                       | controller, domain | 
+

docs/architecture/transaction-sequence.md

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-```mermaid
-sequenceDiagram
-    participant User
-    participant PaymentGateway
-    participant TransactionDB
-    User->>PaymentGateway: Initiate Payment
-    alt Successful Payment
-        PaymentGateway-->>TransactionDB: Store Transaction
-        TransactionDB-->>PaymentGateway: Confirm Transaction Stored
-        PaymentGateway-->>User: Payment Successful
-    else External Failure
-        PaymentGateway-->>User: Payment Gateway Error
-    else DB Failure
-        PaymentGateway-->>User: Payment Processing Error
-        TransactionDB-->>PaymentGateway: DB Error Occurred
-    end
-    opt Commit Transaction
-        TransactionDB-->>User: Commit Success
-    end
-    opt Rollback Transaction
-        TransactionDB-->>User: Rollback Success
-    end
-```