feat(tui): add tui.attach config and --attach flag to connect to existing server#9683

R44VC0RP wants to merge 2 commits intoanomalyco:devanomalyco/opencode:devfrom

R44VC0RP:fix/server-attach-tuiR44VC0RP/opencode:fix/server-attach-tuiCopy head branch name to clipboard