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+# Package Responsibility and Forbidden Dependencies
+
+| Package      | Responsibility                                   | Forbidden Dependencies |
+|--------------|--------------------------------------------------|------------------------|
+| controller   | Handles incoming requests and routes them        | repository, domain     |
+| service      | Contains business logic and processes data       | repository, domain     |
+| repository   | Data access and storage                          | controller, service    |
+| domain       | Core business model and rules                    | controller, service     |
+| integration   | External system communication                    | domain                 |
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