Colony.currentQueenId is unique across colonies. dissolve() and merge()
set status to DISSOLVED/MERGED but never cleared currentQueenId, so a
colony that still had a queen when it was dissolved or merged kept
permanently "owning" her - any later attempt to assign that queen to a
different colony (e.g. requeening another colony with her) would fail
with a unique-constraint conflict, since the dead colony's stale
reference was still occupying that slot.
Both operations now clear currentQueenId and close the open
QueenColonyHistory row for that queen, mirroring the bookkeeping
assignColony() and the queen-status-transition fix already do
elsewhere. The merge survivor keeps its own queen; a merged-away
colony's queen is released, not auto-transferred, since which queen
"wins" a merge is a beekeeper decision.
Co-Authored-By: Claude Sonnet 5 <[email protected]>
