Module catalog 

Catalog management traits for instrument lifecycle.

Used by the CatalogManager to discover instruments from oracles, manage trading modes, and coordinate settlement state.

Structs

CatalogInstrument

Instrument summary for catalog settlement processing.

MarketCatalogState

Catalog state for a market (one row per underlying + expiry).

Traits

CatalogReader

Read-only catalog queries.

CatalogWriter

Catalog write operations.