fzf and zoxide

ws pick offers the branches already checked out, the origin/* branches that are not, and — with --global, or outside a workspace — other workspace roots from the zoxide database. Inside tmux the filter opens in a popup; the popup runs ws itself, so the selection is acted on from inside the session.

Every switch registers the branch directory and its worktrees with zoxide, so z feature-JIRA jumps straight there; ws rm removes them again. Set integrations.zoxide.enabled: false to opt out.