Description:

This pull request refactors the WebSocket message handling on the server to improve modularity and
maintainability.

The previous implementation used a large switch statement in server.ts to handle incoming messages.
This has been replaced with a message handler registry (handlerRegistry.ts) that maps message types to
their corresponding handler functions. This change simplifies the main server.ts file and makes it
easier to add, remove, or modify message handlers in the future.

Changes:

• server/server.ts: Refactored the message handler to use the new message handler registry.
• server/handlerRegistry.ts: Added a new file to define the message handler registry.
• server/handlers/use-skill.ts: Updated the function signature to match the new handler registry.

This refactoring improves the overall code quality of the server and sets a better foundation for
future development.