From 8d84f6b56836cdcf96749f9050f8d02ea57d15a9 Mon Sep 17 00:00:00 2001
From: forge-bot <bot@forge.local>
Date: Sun, 12 Jul 2026 05:02:12 +0000
Subject: [PATCH 1/2] forge: open work branch for iss-6f8eac22f6f0-attempt-1

---
 .forge/iss-6f8eac22f6f0-attempt-1.md | 3 +++
 1 file changed, 3 insertions(+)
 create mode 100644 .forge/iss-6f8eac22f6f0-attempt-1.md

diff --git a/.forge/iss-6f8eac22f6f0-attempt-1.md b/.forge/iss-6f8eac22f6f0-attempt-1.md
new file mode 100644
index 0000000..ef87d47
--- /dev/null
+++ b/.forge/iss-6f8eac22f6f0-attempt-1.md
@@ -0,0 +1,3 @@
+# iss-6f8eac22f6f0-attempt-1
+
+Forge 이슈 작업 브랜치 `forge/iss-6f8eac22f6f0-attempt-1`.

From ce2f379bf443c3bb92938e5821ff7262542f9561 Mon Sep 17 00:00:00 2001
From: forge-bot <bot@forge.local>
Date: Sun, 12 Jul 2026 05:02:20 +0000
Subject: [PATCH 2/2] =?UTF-8?q?=EA=B2=B0=EC=A0=9C=20=EC=A0=84=ED=99=98=20?=
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Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/architecture/transaction-sequence.md | 41 +++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 docs/architecture/transaction-sequence.md

diff --git a/docs/architecture/transaction-sequence.md b/docs/architecture/transaction-sequence.md
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+```mermaid
+sequenceDiagram
+    participant User
+    participant PaymentService
+    participant PaymentGateway
+    participant Database
+
+    %% 정상 흐름
+    User->>PaymentService: 결제 요청
+    PaymentService->>Database: 거래 데이터 저장
+    Database-->>PaymentService: 저장 완료
+    PaymentService->>PaymentGateway: 결제 요청
+    PaymentGateway-->>PaymentService: 결제 성공
+    PaymentService->>Database: 거래 완료 상태 업데이트
+    Database-->>PaymentService: 상태 업데이트 완료
+    PaymentService-->>User: 결제 성공 응답
+
+    %% 외부 실패 흐름
+    User->>PaymentService: 결제 요청
+    PaymentService->>Database: 거래 데이터 저장
+    Database-->>PaymentService: 저장 완료
+    PaymentService->>PaymentGateway: 결제 요청
+    PaymentGateway-->>PaymentService: 결제 실패
+    PaymentService->>Database: 거래 실패 상태 업데이트
+    Database-->>PaymentService: 상태 업데이트 완료
+    PaymentService-->>User: 결제 실패 응답
+
+    %% DB 실패 흐름
+    User->>PaymentService: 결제 요청
+    PaymentService->>Database: 거래 데이터 저장
+    Database-->>PaymentService: 저장 실패
+    PaymentService-->>User: 결제 실패 응답
+
+    %% commit 흐름
+    PaymentService->>Database: 커밋
+    Database-->>PaymentService: 커밋 완료
+
+    %% rollback 흐름
+    PaymentService->>Database: 롤백
+    Database-->>PaymentService: 롤백 완료
+```
\ No newline at end of file