Add skeleton loading states and center full-pane empty states - #522
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The command center, channel feed, episodes rail, memory panel, and members panel either rendered nothing or a bare "loading…" string while their first fetch was in flight, and the channel tab could flash "No messages yet" before history arrived. Add a shared Skeleton primitive (ui/skeleton.tsx) and give each surface a placeholder shaped like its loaded layout. Also make full-pane empty states consistent: Channel sat at the top of its scroll area while Negotiate centered vertically. All three full-pane states (Channel, Negotiate, L9) now center via EmptyState h-full; rail/list empty states stay in flow. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01DHE2rKVQJvz7AE4qvWBZYQ
Seed the sidebar's room list from a module-level cache so navigation remounts paint the last-known rooms instantly instead of flashing the count to 0 while the refetch is in flight. Top-align full-pane empty states (Channel, Negotiate, L9) so the copy doesn't jump vertically when switching between panes of differing height.
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Summary
Adds a consistent loading treatment across the frontend and fixes the empty-state alignment inconsistency between the Channel and Negotiate tabs.
The command center had no loading state at all (a blank page, or a flash of "No rooms yet", until the first fetch resolved), and several panels used bare "loading…" / "Loading…" strings. Full-pane empty states were also inconsistent: Channel rendered its empty state at the top of the scroll area while Negotiate centered it vertically.
Changes
Skeletonprimitive (mycelium-frontend/src/components/ui/skeleton.tsx): a pulsing block on thesurfacetoken, composed into row/card shapes at each call site.event-stream.tsx): newhistoryLoadedflag; shows chat-row skeletons while message history loads, so "No messages yet" can no longer flash before the fetch resolves.loadedflag with tree-row skeletons, so "No memories yet" no longer flashes on first load.EmptyState className="h-full"(the component already justifies center); Negotiate's ad-hoc wrapper div removed. Rail/list empty states intentionally stay in flow. Convention documented onEmptyState.Testing
pnpm lint/tsc --noEmit)pnpm test, 12/12)pnpm build)Backend checkboxes from the template are N/A — this PR touches only
mycelium-frontend.Related Issues
None.
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https://claude.ai/code/session_01DHE2rKVQJvz7AE4qvWBZYQ
Generated by Claude Code