feat(ux): optimistic detail edits + seed-from-cache (perceived speed)#137
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Perceived-speed pass on the record detail screen: - Inline field edits and state-machine transitions now apply optimistically — the badge/value moves the instant you pick it, the write persists in the background, and a server reconcile runs silently (no spinner). A failed write rolls the record back to its prior snapshot and toasts the error. Previously each edit awaited the round-trip AND a full refetch before the UI moved. - Prev/next navigation and arrival-from-list now seed the record from the already-fetched sibling list, so the screen paints instantly instead of flashing a skeleton while the authoritative data.get runs. The skeleton only shows when there's genuinely nothing cached to display. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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What
First slice of the 感知速度 (perceived speed) track, on the record detail screen.
Optimistic mutations
Inline field edits (select/status badges) and state-machine transitions previously did
await update()thenawait fetchRecord()— a full round-trip plus a refetch before the UI moved. Now:setRecordbefore the network call)Seed-from-cache (no skeleton flash)
The detail screen already fetches the sibling list (
top: 200) for prev/next. It now seeds the record from that cache, so navigating between records — or arriving from the list — paints immediately instead of flashing a loading skeleton while the authoritativedata.getruns. The skeleton shows only when nothing is cached.Verification
tsc --noEmitcleaneslintcleanPressables that the web-preview harness can't drive via synthetic events (a documented harness limitation, not a code issue); these interactions exercise on real touch. The optimistic/rollback logic is a standard snapshot-set-rollback pattern covered by the type checker and unit suite.🤖 Generated with Claude Code