v2.0.2

2.0.2 is the "adopt the other machine's checkout without a fight" release.
Every fix here was found and proven overnight on the founder fleet while
landing four real repositories from one machine onto another.

Fixed

• rbox git resolve <repo> take-theirs works again on real repositories:
  the confirmation token no longer changes under you while the background
  sync is running, a repository with mixed-case branch names no longer
  refuses its own unchanged confirmation, and a repository that had never
  established a sync baseline is no longer blocked by stale bookkeeping from
  an earlier state of the same machine.
• A repository with more than 256 branches can sync again (the per-branch
  bookkeeping limit is now 2,048).
• rbox recover refuses to overwrite commits made on another machine —
  it only repairs history this machine authored, and says so.
• Receivers no longer pause a repository as "local changes" when its index
  is simply pristine; the paused-repo list now shows real work only.
• "Repos waiting on you" entries for directories you have since ignored
  retire automatically (131 stale entries cleared on the founder desktop),
  including whole ignored trees.
• rbox status and rbox doctor warn when one directory suddenly dominates
  what rbox is about to sync, and name the one-line ignore that skips it.
• Pushes skip re-uploading the multi-megabyte ref index when the server
  already has it (up to 99% fewer bytes on edits and renames).
• Git ref cleanup after a sync runs as one git call per repository instead
  of one per branch (8× faster on branch-heavy repositories).