Here are the classes, structs, unions and interfaces with brief descriptions:

Nopenpit
Naccountadjustment
CAccountAdjustment
CAccountOutcomeEntry
CAmount
CBalanceOperation
CBatchError
CBounds
COperation
COutcome
COutcomeAmount
COutcomeList
CPositionOperation
Naccounts
CAccountBlock
CAccountBlockError
CAccountControl
CAccountGroupError
CAccounts	Account-group and account/group block administration for an engine
Nasyncengine
CAdjustmentOutcome	Result value for an async account-adjustment batch
CAsyncAccounts	Async account-administration view
CAsyncEngine	Account-pinned async facade over a synchronous driver object
CAsyncRequest	Async wrapper around a start-stage request
CAsyncReservation	Async wrapper around an accepted pre-trade reservation
CBuilder	Entry builder for selecting async strategy and common options
CDynamicBuilder	Builder stage for demand-created per-account queues
CEngineAdapter	Adapter that exposes openpit::Engine methods to TypedAsyncEngine
CError	Async dispatch failure carried by a future or lifecycle API
CExecuteOutcome	Result value for an async full pre-trade call
CFuture	Consumer side of an async operation returning one value
CNoopObserver
CObserver
COwnedTypedAsyncEngine	Owning typed async engine built over the default EngineAdapter
CPairFuture	Consumer side of an async operation returning two values
CPairPromise	Producer side for PairFuture<A, B>
CPromise	Producer side used by the dispatcher to resolve a Future<T>
CResult	Resolved payload of a future: either a value or an async error
CShardedBuilder	Builder stage for a fixed number of account shards
CStartOutcome	Result value for an async start-stage call
CTypedAsyncEngine	Typed async facade exposing named OpenPit engine operations
CTypedBuilder	Entry builder for TypedAsyncEngine
CTypedDynamicBuilder	Typed builder stage for demand-created account queues
CTypedShardedBuilder	Typed builder stage for a fixed number of account shards
Nmarketdata
CBuilder
CGetResult	Value result returned by account-aware quote reads
CInstrumentId
CQuote
CQuoteTtl
CRegisterResult	Value result returned by market-data registration calls
CService
Nmodel
CExecutionReport
CExecutionReportOperation
CFill
CFinancialImpact
CInstrument
COrder
COrderMargin
COrderOperation
COrderPosition
CPositionImpact
CTrade
CTradeAmount
Nparam
CAccountGroupId
CAccountId
CAdjustmentAmount
CGroupId
CLeverage	Fixed-point leverage multiplier transport wrapper
Npretrade
Npolicies
COrderSizeAccountAssetBarrier
COrderSizeAssetBarrier
COrderSizeBrokerBarrier
COrderSizeLimit
COrderSizeLimitPolicy
COrderValidationPolicy
CPnlBoundsAccountBarrier
CPnlBoundsAccountBarrierUpdate
CPnlBoundsBrokerBarrier
CPnlBoundsKillSwitchPolicy
CRateLimit
CRateLimitAccountAssetBarrier
CRateLimitAccountBarrier
CRateLimitAssetBarrier
CRateLimitBrokerBarrier
CRateLimitPolicy
CSpotFundsOverride
CSpotFundsPolicy
CContext	Main-stage pre-trade context passed to a custom policy check
CCustomPolicy	Owning custom pre-trade policy backed by a C++ Handler
CDryRunReport
CExecuteResult
CLockEntry
CPolicyAdapter
CPolicyDecision
CPreTradeLock
CReject
CRequest
CReservation
CStartPolicyAdapter	Adapts a client start-stage policy to the engine callback seam
CStartResult
CAdjustmentResult
CBytesView
CConfigurator
CConfigureError
CEngine
CEngineBuilder
CEngineBuildError
CError
CExecutionReport
COrder
CPostTradeResult
CSharedBytes
CSharedString
CStringView