Every lookup by id walked the whole tree, and the edit path did one per selected id, so editing
a selection of n objects cost O(n²). Measured with the new `perf --deep` rows at 25,000 paths:
- Select All: 458 → 3.5 ms
- nudge the selection: 3,517 → 34 ms
- drag it with the Selection tool, per pointer move: 3,413 → 35 ms
- undo / redo: 407 → 3.1 ms
- vectorcraft_doc: Document::index_paths (every id's index path, in one walk; the first in tree
order for a duplicated id, as index_path), node_at, node_mut_at (copy-on-write, as node_mut)
and ancestry_at.
- apply_transform, roots_of, transform_patterns, doc_sane, Selection::prune and
Document::paint_order look their ids up with one walk instead of one each.
- Selection::set dedups with a hash set instead of Vec::contains per id.
- vectorcraft-cli perf --deep: tracked rows for editing a whole selection (select, nudge, drag,
undo, redo), live effects, every Pathfinder operation, typing in a long story, and memory.
tests_lookups checks the batched lookups against the one-id ones on nested trees with missing and
duplicated ids; storing the last duplicate instead of the first fails it. The doc and engine
suites (2,000 tests) pass unchanged.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VmMmc1J8XeNLxhRihWv9cc
Window > Asset Export lists the document's assets as thumbnails: art
dragged in off the canvas (or added with +) becomes one asset per object,
or one of them all with Alt; Object > Collect for Export does the same.
Assets name their objects, so they follow edits (moving the art moves the
crop) and deleting the art removes it from its asset. Click selects,
double-click renames, the bin removes. The panel's export settings are
Export for Screens' own format rows on the document's shared settings, and
Export writes each asset alone, cropped to its art, into a picked folder
(the web downloads a zip). Export for Screens' Assets tab lists the assets
with checkboxes and exports the checked ones.
Commands: assets.add, assets.remove, assets.rename, assets.list,
assets.export, assets.settings.set; document.exportForScreens takes
assets. Model: Document.assets (ExportAsset {id, name, nodes}).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
