Run Multiple Teams in Parallel (Local + Git)

Today, the clean way to run several teams on one codebase at the same time
(each on a different part) is one Local Coda per team, isolated by git.

1. Create a git worktree (or branch/clone) per team off the same repo:

   git worktree add ../repo-team-a  team-a
   git worktree add ../repo-team-b  team-b
   git worktree add ../repo-team-c  team-c

1. Run a Local Coda per worktree, each opened on its own folder with its own

team of agents.

1. Each team works its part independently. Git is the sync layer — merge the

branches back (PRs or git merge) as parts complete.

This gives real parallelism today, with git ensuring the parts combine safely.

In Company mode, a project's workflow Process steps run sequentially
and team chat surfaces the active step's team — each step can have its own
team, but they take turns. For simultaneous work on one codebase now, use the
Local + git approach above. (Automatic orchestration of this is on the roadmap.)