feat(plugin-history-sync): support preventDefault via history reconciliation (FEP-2001)#720

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feature/fep-2001-reconciler

Commits on Jun 28, 2026

docs(plugin-history-sync): add preventDefault reconciler solution plan (FEP-2001)

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Commits on Jun 30, 2026

refactor(plugin-history-sync): remove comments per review

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refactor(plugin-history-sync): rename controller step actions to v2 names

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fix(plugin-history-sync): reset inFlight on dispose

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fix(plugin-history-sync): throw when start() is called twice

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refactor(plugin-history-sync): default useHash at construction

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fix(plugin-history-sync): move inFlight reset into dispose

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fix(plugin-history-sync): throw on missing browser ordinal in syncPass

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refactor(plugin-history-sync): drop redundant zIndex sort of committed entries

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refactor(plugin-history-sync): track pending sync explicitly across in-flight ops

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fix(plugin-history-sync): throw on empty entered stack in syncPass

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refactor(plugin-history-sync): narrow isEntered to enter-done

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