CatalogEntry gains createdAt/updatedAt and the catalog document moves to
v5 (reads v1-v5, writes v5). Modification time is structure-sensitive:
editing a node's own fields bumps the node, a group's direct child set
or order changes bump the group, and a moved node keeps its timestamps.
No-op writes and unchanged subscription refreshes bump nothing; the
refresh rebuild compares per node, so surviving leaves keep theirs. All
times are passed in by callers as now: Date - one moment per logical
commit, the domain layer stays clock-free. Legacy documents load with
nil (unknown, never backfilled); duplicates and imports stamp fresh
times at the moment of the operation.
Semantics are recorded as glossary term 节点时间戳 and ADR 0031. No UI
in this change.
- Replace toolbar QR popover with a window sheet per sketch: top hint,
280pt white-backed QR, copy-image / save-image / copy-ss:// actions
and a Done button; all buttons share a 260pt min label width
- Freeze share payload and suggested file name at presentation time;
transient "copied" feedback on copy actions
- Add ImageClipboard seam (PNG normative type + TIFF in AppKit adapter)
and QrImageSaver seam (NSSavePanel PNG, sanitized suggested name)
- Register new typed failures in the presentation whitelist; extend
platform-effects architecture guard and seam tests
- Record spec in docs/design/server-share-sheet.md; GLOSSARY server
share now covers saved QR image files
Qiu Yuzhou