Add `rebuildReactivityFromStore` to synchronize local reactivity state with the hydrated variable store. This ensures tag activations are correctly tracked following a reducer replay. Also remove the unused `invalidateCompletions` function.
Add `rebuildReactivityFromStore` to synchronize local reactivity state with the hydrated variable store. This ensures tag activations are correctly tracked following a reducer replay. Also remove the unused `invalidateCompletions` function.