B2Action_Buy

• Description
  * ===============
  * Handles acquiring a purchased/saleable game object: plays a pick-up grab animation for carriable objects (or otherwise places it directly into inventory/site storage), then on finish settles currency payment between buyer and seller, applying HouseholdBiz pricing/ledger rules when bought from a business.
  * ===============
  * Param:
  * S1: BuyPolicyType - purchase policy (e.g. Default vs HouseholdBiz), parsed via NAME2ENUM
  * S2: -
  * F1: -
  * F2: -
  * Note:
  * OnInit(): parses BuyPolicyType, caches the self character's PostureComponent, and for carriable targets determines hand/grab style and resolves the pick-up montage.
  * OnPlay(): plays the pick-up montage for carriable objects, or otherwise places the object directly into the buyer's inventory/home site inventory (spawning fake sold-out replacements for grouped children when needed).
  * OnFinish(): syncs the grab-hold loop animation and posture state, then charges the buyer and pays the seller (or runs the HouseholdBiz currency-transfer/ledger/desire-gauge/quality-evaluation flow when BuyPolicyType is HouseholdBiz), removing the object from sale and spawning fake sold-out replacements.
  * OnCanceled(): restores posture pick-up context and, if the grab notify had already fired, records the grabbed entity as the last-grabbed object.

Property	Type	Description	Metadata
GrabId	FName	Grab table id of the target carriable object, used to resolve pick-up/loop hand animations and set the held grab id
PickUpAnimId	FName	Resolved pick-up grab animation id (hand-converted), used to find the pick-up montage and posture info
GrabLoopAnimId	FName	Resolved hold-loop grab animation id (hand-converted), preloaded here so it's ready when the hold loop is later synced
AnimMontageName	FName	Resolved pick-up montage row id; empty means the target isn't a carriable object (goes straight to inventory placement)
bUseFakeObject	bool	Set true whenever a child object is added to FakeObjectList (the actual data OnFinish uses to spawn fake objects); this flag itself is never read
bIsTargetOnSaleInFleaMarket	bool	Whether the target was on sale via the flea market, used on finish to price it through B2FleaMarketHelper instead of the object's own sale price
SelectedHand	EB1HandType	Hand chosen to hold the purchased/carried object
CarryHandStyle	EB1CarryHandStyle	One-hand/two-hand/assist carry style for the target object, resolved from its object template
FakeObjectList	TArray	Grouped child objects moved to the seller's site inventory and replaced with fake sold-out stand-ins when the buyer's inventory placement fails
BuyPolicyType	EB1BuyPolicyType	Purchase policy (Default vs HouseholdBiz) parsed from Action.S1, selecting the payment/pricing flow used in OnFinish
ActionId	FName	Identifier of this action instance (used for interaction tracking and mission time accounting)
State	EB2ActionState	Current lifecycle state of this action
MergeType	EB2ActionMergeType	Merge type flags for this action (e.g. interaction merge, checked in Finish())
Result	EB2InteractionResult	Result of this action once it stops playing (Finish/Failed/Canceled)
SelfEntityId	FB1EntityId	Entity id performing this action
TargetEntityId	FB1EntityId	Entity id targeted by this action
GrabEntityId	FB1EntityId	Entity id grabbed/carried by self entity for this action
NonTargetLocation	FVector	Location used for script/condition context when there is no target entity
Action	FB1ActionInfo	Action table data (S1/S2/F1/F2, script id lists, etc.) driving this instance
TickCalcValue	float	Accumulated tick delta time since this action started ticking
CurrentNotifyIndex	int32	Index into Action.NotifyScriptIds for the next notify script to run
AsyncLoadAnimInfo	TArray	Animations to async-load for this action's start/notify/tick/finish/cancel scripts
AddActionTimeInterval	float	Interval in seconds between OnTickAddActionExecuteTime() calls
AccumAddActionTime	float	Elapsed time accumulator compared against AddActionTimeInterval
StartActionTickTime	int64	Tick timestamp used to measure elapsed action execution time for mission tracking
ActionKey	FB2ActionKey	Key identifying this action's slot/queue within the interaction system
TimeTaskId	FB1TimeTaskId	Id of the scheduled time task used for delayed Determine/Finish
IsForceCancelable	bool	Whether this action is force-cancelable, copied from Action.IsForceCancelable
IsFirstAction	bool	Marks the first action in an interaction sequence; set on actions[0] by FB2InteractionPlayer::LinkActions(), read by FB2ActionPlayer
bMultiFlag	bool	Set by looping actions (PlayAnim, BookRead, Eat, WaitTalkSequence) once a loop iteration completes; read/reset by FB2ActionPlayer to gate multi-interaction selection
TalkInstanceId	FB1TalkInstanceId	Id of the talk instance this action is linked to, set externally by FB2InteractionPlayer::LinkActions()
TalkSubjectEntityId	FB1EntityId	Entity id of the talk subject linked to this action, set externally by FB2InteractionPlayer::LinkActions()/OnTalkSpaceParamChanged()
bIsWaitFinishEvent	bool	Cached copy of Action.IsWaitFinishAction taken at Init(); read directly by FB2ActionPlayer for sequencing (the IsWaitFinishAction() getter instead reads Action.IsWaitFinishAction live)
AutoInsertType	EB2ActionAutoInsertType	Type of action that was auto-inserted before this one (e.g. WalkTo, ChangePosture)