Bundle the colourful document sheet as the plugin's own icon and fill the
right-Sidebar tab type's two glyph seats with it, the way the shipped files
type does: the guide capsule's `icon`, and a new `sidebar.right.pane.tab.title`
registration that draws the emblem beside the chip label.
The chip's close control sits out of flow over the title's last 14px and an
active chip fades the 16px before it, so the shipped files chip stays readable
only by its short label. The label now carries a trailing gutter so that fade
lands past the text instead of on the last glyphs.
Registration turns rollback-safe (each disposer is tracked) so a partial
failure unwinds cleanly, and the obsolete primitives-icon resilience spec goes
with the icon read it guarded.
bowenliang123
8212526d6c