diff --git a/.forge/iss-155aa95ea6df-attempt-2.md b/.forge/iss-155aa95ea6df-attempt-2.md
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-# iss-155aa95ea6df-attempt-2
-
-Forge 이슈 작업 브랜치 `forge/iss-155aa95ea6df-attempt-2`.
diff --git a/.forge/iss-8fd82b653bff-attempt-1.md b/.forge/iss-8fd82b653bff-attempt-1.md
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-# iss-8fd82b653bff-attempt-1
-
-Forge 이슈 작업 브랜치 `forge/iss-8fd82b653bff-attempt-1`.
diff --git a/docs/architecture/package-map.md b/docs/architecture/package-map.md
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-# Package Map
-
-| Package        | Responsibility                                      | Forbidden Dependencies |
-|----------------|----------------------------------------------------|------------------------|
-| controller     | Handle HTTP requests and responses                  | domain                 |
-| service        | Business logic and transaction management           | domain, integration     |
-| repository     | Data access and retrieval                           | service                 |
-| domain         | Core domain logic and entities                      | controller, service, repository |
-| integration     | External service communication                     | service                 |
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diff --git a/docs/architecture/transaction-sequence.md b/docs/architecture/transaction-sequence.md
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-```mermaid
-sequenceDiagram
-    participant User as User
-    participant Checkout as Checkout Service
-    participant Payment as Payment Gateway
-    participant DB as Database
-
-    %% Normal flow
-    User->>Checkout: Initiate Checkout
-    Checkout->>DB: Save Order
-    DB-->>Checkout: Order Confirmation
-    Checkout->>Payment: Process Payment
-    Payment-->>Checkout: Payment Success
-    Checkout->>User: Payment Successful
-
-    %% External failure
-    User->>Checkout: Initiate Checkout
-    Checkout->>DB: Save Order
-    DB-->>Checkout: Order Confirmation
-    Checkout->>Payment: Process Payment
-    Payment-->>Checkout: Payment Failure
-    Checkout->>DB: Rollback Order
-    DB-->>Checkout: Order Rollback
-    Checkout->>User: Payment Failed
-
-    %% DB failure
-    User->>Checkout: Initiate Checkout
-    Checkout->>DB: Save Order
-    DB-->>Checkout: Order Confirmation
-    Checkout->>Payment: Process Payment
-    Payment-->>Checkout: Payment Success
-    Checkout->>DB: Commit Order
-    DB-->>Checkout: Error
-    Checkout->>DB: Rollback Order
-    DB-->>Checkout: Order Rollback
-    Checkout->>User: Payment Successful, Order Error
-```
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