Function plan_catalog_replay_inputs 

pub fn plan_catalog_replay_inputs<B, C>(
    reader: &EventStoreReader<B>,
    catalog: &mut C,
    range: ReplaySeqRange,
    catalog_slices: &[CatalogSliceSelector],
) -> Result<ReplayInputPlan, ReplayInputError>
where
    B: EventStore,
    C: ReplayCatalog,

Plans replay inputs by joining event-store entries with selected catalog slices.

The event-store range supplies durable replay order. Catalog slices are contextual input selected by the caller; their timestamps bound data lookup but never replace seq ordering.

Errors

Returns ReplayInputError::EmptyCatalogSelection when no catalog slices are selected, ReplayInputError::InvalidSeqRange when range is invalid, ReplayInputError::MissingCatalogTimeBounds when an unbounded selector cannot inherit bounds from an empty event-store scan, ReplayInputError::InvalidCatalogTimeRange when a resolved slice has start > end, ReplayInputError::Catalog when catalog planning fails, and ReplayInputError::EventStore when the reader scan fails.