feat(server): handle working dir change

[sudo-tee]

This should fix #246

[Copilot]

Pull request overview

Adds handling for Neovim working-directory changes by restarting the Opencode server and attempting to restore an appropriate session for the new workspace.

Changes:

• Add a DirChanged autocmd that shuts down and re-starts the Opencode server, then reloads the last workspace session (or creates a new one).
• Remove an unused log require from OpencodeServer.new().

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 4 comments.

File	Description
lua/opencode/ui/autocmds.lua	Adds DirChanged autocmd to restart server and reload/create session after cwd changes.
lua/opencode/opencode_server.lua	Removes unused local log require in constructor.

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[nzlov]

The first switch works fine. However, if I switch back to the initial working tree, the opencode switch fails. Another issue is that switching the working tree doesn't change the session.
origin

change new

change origin

[sudo-tee]

@nzlov

I found the issue for multiple cwd changes it should work now

For the session switch I dind't have the issue on my side but I delayed the loading of sessions to give time for the server to shutdown

Let me know if it works for you

[nzlov]

session change not work

cwd not work some time

i see session refresh, but just refresh session, not change.
Switching working trees should not stop opencode, as this will interrupt the agent's operation.