* Compensate for upstream row-0 transform absorption in viewport-space 'TransformSet'
* Add 'editor:text_frame' row attribute so the Text tool's drag cage tracks multi-row text
* "Separate Glyph Elements" -> "Separate Glyphs"
* Improve artboard migration robustness from older documents
* Code review
* Make the tools visualize the text frame based on attribute not upstream node
* Stop pushing duplicate layer entries when re-clicking an already-selected layer
* Make Text node generate per-glyph bounding box click targets
* Show source-geometry outlines and aggregate all rows for layer click targets
* Strip 'editor:click_target' override on Path node so direct edits restore precise hit testing
* Fix inverting a zero-determinate transform
* Rename "editor:layer" to "editor:layer_path" and centralize it in a const
* Centralize "editor:merged_layers" in a const
* Centralize all other attributes in consts
* Rename consts with ATTR_ prefix
* Format
* Fix click target propagation with the Rasterize node
* Add the 'Write Attribute' node
* Remove tag_layer in favor of the new Write Attribute node, prune redundant attribute writes
* Replace the Vector<Upstream> type argument with the "editor:merged_layers" attribute
* Feature-gate serde derives behind cfg_attr in all runtime node graph type crates
* Refactor Table to move its hard-coded fields into an attributes field
* Encapsulate TableRow/TableRowRef/TableRowMut attribute fields behind accessor methods
* Remove TaggedValue::GraphicUnused
* Refactor Table<T> to use dynamic attributes instead fixed names
* Fix code review soundness concerns
* Add todo work
* Replace row-oriented Table<T> API with column-oriented access
* Fix attribute propagation bugs
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