SSR demo chunks for guest first page view#67
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Load the first demo source's parsed chunks during the server render so guest users see content immediately — no loading spinner on first visit. Uses unstable_cache with revalidate: false so the fetched chunks are shared across all users. The chunk prefetch is best-effort; if it fails, the client falls back to loading chunks on demand.
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Summary
Closes #66
Guest users previously saw an empty chunks panel on first visit while demo data was loaded client-side. This loads the first demo source's parsed chunks during SSR so they appear immediately — no loading spinner, no delay.
Caching
Uses
unstable_cachefrom Next.js withrevalidate: falseso the demo chunk data is cached across all users. The Knowhere API demo chunks endpoint is called once, then the parsed result is served from memory for every subsequent request until the server restarts.The prefetch is best-effort — if the API is unavailable during SSR, the client gracefully falls back to loading chunks on demand.
Changes
src/domains/workspace/initial-state.ts— In the guest path, fetches the first demo source's chunks viaknowhereDemoApi.fetchChunkPage(), converts them toParsedChunkView, and caches the result withunstable_cache. Passes asinitialPrefetchedChunksBySourceIdin the shell initial state.src/components/workspace-shell.tsx— AcceptsinitialPrefetchedChunksBySourceIdprop and passes it directly touseWorkspaceCitationFocus, which already supports seeding viainitialPrefetchedChunksBySourceId.Test plan