📦 contract Package

This package contains the request and response structs used by the HTTP API.

Keeping these in a separate package makes the code:

• Easier to maintain — the shape of API data is defined in one place
• Clearer — shows exactly what the API expects and returns
• Reusable — the same types can be used by handlers, tests, or clients

This package should only define data structures — no business logic.

🔄 Note: Some request/response structs may still live in the server/service packages. Move them here as needed to keep API contracts organized and consistent.