moveItem: physical folder move, UUID and created travel unchanged;
exactly one file rewritten (the moved root's order, stamped). Import
boundary detected by resolved board-root comparison; on a cross-board
move-in, arriving UUIDs colliding with any identity in the destination
board (tombstones included) are reminted per folder at the finest
grain — folder rename only, file bytes untouched, every repair
reported in MoveResult. A colliding root moves straight to its minted
name. A same-parent move degrades to a plain reorder, self excluded
from the appended-rank scan.
copyItem: whole-tree copy minting fresh UUIDs at every depth; .fork
keeps created while stamping modified and clearing modified-by, .born
(template instantiation) stamps created fresh too. Nested uneditable
or unreadable files copy byte-verbatim rather than blocking the
gesture; the root must be rewritable. All-or-nothing at the
destination — any failure removes the partial tree.
24 new unit tests; 220 total green.
Claude-Session: https://claude.ai/code/session_018BjQRYBR6jQja3jCRi5S3A
rzen
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