malkhut: multi-exchange asset universe + schema docs
ExchangeProfile: standardized exchange metadata (fees, latency, capabilities).
3 pre-defined exchanges: Binance, BingX, Bybit.
AssetProfile.exchanges: tuple[str] — which venues trade each asset.
New query functions: get_assets_on_exchange, get_common_assets,
get_exchange_for_asset, get_exchange, list_exchanges.
_DATA_STORAGE_SCHEMA_FORMATS.md: comprehensive reference for agent
consumption — data model, storage format, query interfaces, data flow
diagram, enum reference, import patterns for BLUE/VIOLET/UV integration.
README updated: exchange registry section, package structure, subsystems
table.
d2d0c5e292