[Command Universe Sort] Show "No results" when a search matches nothing

[fbmcipher]

Intent

A search that matches nothing now shows "No results" in the middle of the dialog instead of an empty Results header. Builds on #6044, and is the top of the stack.

Approach

When every section is empty, CommandUniverseGridPage drops the empty section and renders NoResultsMessage over the page.

Decisions

• The empty section is dropped, not just its header hidden. That way the header leaves with the rest of the rearrangement from [Command Universe Sort] Rearrange the grid on sort and search instead of crossfading #6044 instead of disappearing abruptly.
• The filtered section list is memoized. The sections are the rearrangement's layout key, so a new empty array on every render would re-run the animation effect.
• The message uses the search row's additive blend and accent colour, at half opacity, so it reads as part of the dialog's glass surface.

Notes and caveats

• This only changes the mobile Command Universe grid. The Command Library table and the desktop palette are unchanged.

🤖 Generated with Claude Code

[github-actions]

Preview Deployment · Oct 18, 2026, 2:56 AM UTC · 6bf36d6