Refactor dump command

[nojaf]

I would like to wire this up in another editor, so I shuffled some logic to the server to more easily hook it up elsewhere.

[Copilot]

Pull request overview

This PR refactors the "dump server state" command by moving its logic from the client to the server to enable editor-agnostic usage. The refactoring converts a custom client-side command into a standard LSP executeCommand request, with the server handling file writing and opening via the window/showDocument LSP request.

Key changes:

• Server now handles all dump logic including reading package.json version, formatting state, writing to disk, and opening the file
• Client command simplified to a single executeCommand request
• Old client-side dump_server_state.ts file removed entirely

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 5 comments.

File	Description
server/src/server.ts	Added async dumpServerState function, registered executeCommand capability, and added handler for workspace/executeCommand requests
client/src/extension.ts	Simplified command handler to send executeCommand request to server instead of handling logic client-side
client/src/commands/dump_server_state.ts	Removed entire file as functionality moved to server
client/src/commands.ts	Removed export of now-deleted dumpServerState function

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[Copilot]

Pull request overview

Copilot reviewed 4 out of 4 changed files in this pull request and generated no new comments.

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