diff --git a/.forge/SPRING-ARC-SPLIT-1783827796-attempt-5.md b/.forge/SPRING-ARC-SPLIT-1783827796-attempt-5.md
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-# SPRING-ARC-SPLIT-1783827796-attempt-5
-
-Forge 이슈 작업 브랜치 `forge/SPRING-ARC-SPLIT-1783827796-attempt-5`.
diff --git a/docs/architecture/adr-payment-boundary.md b/docs/architecture/adr-payment-boundary.md
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-# Architectural Decision Record for Payment Boundary
-
-## Context
-In order to ensure the integrity and separation of concerns within the payment processing system, we need to define firm boundaries between various components: Controller, Service, Repository, Domain, and Integration. This helps in minimizing unintended dependencies that may arise during development.
-
-## Decision
-The payment boundary will be strictly defined such that:
-- Controllers interact only with Services.
-- Services interact only with Repositories and Domains (no direct interaction between Services and Controllers).
-- Repositories handle data access and business logic is encapsulated within Services.
-- Integration with external systems is managed separately and will not cross into the Service layer.
-
-## Alternatives
-1. Allow Services to directly interact with Repositories for data retrieval.  
-   **Consequences:** Increases coupling and can lead to issues with data integrity and business logic being bypassed.
-2. Utilize an Event-Driven Architecture for communications between Services and Integrations.  
-   **Consequences:** Increased complexity and potential performance hits.
-
-## Consequences
-By setting these boundaries, we are ensuring that changes in one component do not inadvertently affect others, thus maintaining a clean architecture that adheres to SOLID principles. Scalability and maintainability of the system are expected to improve as team members can work more independently without overlapping concerns.
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diff --git a/docs/architecture/package-map.md b/docs/architecture/package-map.md
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-# Package Responsibility and Forbidden Dependencies
-
-| Package       | Responsibility                                          | Forbidden Dependencies        |
-|---------------|-------------------------------------------------------|-------------------------------|
-| Controller    | Handles incoming requests and responses                | Service -> Repository         |
-| Service       | Contains business logic and service level operations   | Repository -> Service         |
-| Repository    | Manages data persistence and retrieval                  | Controller -> Repository      |
-| Domain        | Defines domain model and logic                          | Not applicable                |
-| Integration    | Interfaces with external services                        | Service -> Integration        |
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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 Controller
-    participant Service
-    participant Repository
-    participant Domain
-    participant Integration
-
-    Controller->>Service: processPayment()
-    Service->>Repository: savePayment()
-    Repository-->>Service: paymentSaved
-    Service-->>Controller: paymentProcessed
-
-    alt External API call
-        Service->>Integration: sendPaymentRequest()
-        Integration-->>Service: paymentResponse
-    end
-
-    opt Within DB transaction
-        Service->>Repository: beginTransaction()
-        Repository-->>Service: transactionStarted
-        Service->>Repository: commitTransaction()
-    end
-    Note over Service: Success (commit)
-
-    opt External Failure
-        Service->>Integration: sendPaymentRequest()
-        Integration-->>Service: paymentFailure
-        Service->>Repository: rollbackTransaction()
-        Repository-->>Service: transactionRolledBack
-    end
-
-    opt DB Failure
-        Service->>Repository: throwException()
-        Repository-->>Service: exceptionOccurred
-        Service->>Repository: rollbackTransaction()
-        Repository-->>Service: transactionRolledBack
-    end
-```
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