Read the latest PM + HL portfolio projection

Strictly read-only cache/database response. The request never binds a wallet, registers work, calls Polymarket, Hyperliquid, or an HL node. Account lifecycle producers must use the idempotent admin admission operation before a projection can initialize. A priced-but-incomplete account returns valuationStatus=partial, a knownTotalNavUsd, and totalNavUsd=null; unpriced holdings are disclosed, never represented as $0, and performanceHead is null. A missing or hard-expired checkpoint returns balanceHead=null plus an explicit availability envelope.