fix(leaderboard): add request sequencing and unmount guard to prevent race conditions (closes #79) - #333
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… race conditions (closes SmartDropLabs#79)
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Summary
Fixes a race condition in
useLeaderboardwhere rapid pagination/sorting changes or overlapping 30s auto-refresh cycles could cause out-of-order responses to overwrite the leaderboard state with stale data.Changes
requestIdRefcounter incremented on eachrefresh()invocation. Responses matching superseded request IDs are discarded before updatingentries,total,lastRefreshed, orisLoading.isMountedReflifecycle tracking so in-flight promises resolving after unmount safely drop state updates without emitting warnings.useLeaderboard.test.tsto test out-of-order resolution, stale response discarding, auto-refresh interleaving, and unmount safety.Closes #79