feat(tui): add fullscreen local diff viewer dialog - #15710

The following comment was made by an LLM, it may be inaccurate:

Based on my search, the only related PR I found is:

PR #12188: feat(tui): add interactive code review system for reviewing agent changes

• feat(tui): add interactive code review system for reviewing agent changes #12188

This PR is related as it also deals with TUI diff viewing/code review functionality, though it focuses on reviewing agent changes rather than a general local diff viewer. However, they could be complementary features rather than duplicates.

All other searches returned only the current PR #15710 itself. No other PRs directly addressing the same fullscreen local diff viewer feature were found.

Thanks for updating your PR! It now meets our contributing guidelines. 👍

We have some ideas in this area too but this is cool. I'm not 100% sure if this will get merged cause normally bigger UI things are kinda opinionated by some members of the team but I will say some of this kinda goes against existing client server paradigm, the tui is the client, and the opencode server is where the "repo" / "code" will be so running git diff on the client doesn't make a whole lot of sense in this case

@rekram1-node Thanks for your repo. Makes sense running git diff on the server. Happy to take a look into this

This looks great. I miss this feature so much. I believe this will be better than codex/claude.

why did this get closed?