B2Action_CoopSelect

• Description
  * ===============
  * Resolves the coop to start and, when the requester is a possessed/user-triggered Zoi, opens a coop-select (or birthday-blow) UI to let the player pick participants before starting the coop; otherwise starts the coop directly.
  * ===============
  * Param:
  * S1: coop id override
  * S2: -
  * F1: -
  * F2: -
  * Note:
  * OnInit(): reads the CoopId override from the action params.
  * OnPlay(): resolves CoopId/InteractionBagId, and either starts the coop directly (non-possessed, non-user-triggered, or zoi-group cases) or pauses the game and opens the coop-select / birthday-blow UI, subscribing to the character's zoi-selection events.
  * OnFinish()/OnCanceled(): unless restoring, reports LastCoopResult via toast, unpauses the game, unsubscribes from selection events, and hides the coop-select UI if it was shown.
  * OnTick(): finishes immediately if no selection UI packet was ever sent.

Property	Type	Description	Metadata
CoopId	FName	coop table row id to select participants for, from InAction.S1 or the current interaction's coop-start info
InteractionBagId	FName	current interaction bag id, cached for coop request params and the selection UI packet
LastCoopResult	EB1CoopResult	result of the last coop start attempt, used to build the result toast message
bSendPacket	bool	whether a coop-select UI packet was sent, gating whether OnFinish/OnCanceled must unsubscribe/hide UI and whether OnTick auto-finishes
bRestore	bool	whether this action is being resumed mid-play from a save/restore, so redundant toast/UI cleanup and result reporting are skipped
bIsZoiGroupInteraction	bool	whether the current interaction was triggered as a user-selected zoi-group coop, used to pick the coop request reason
ZoiGroupFlags	int32	zoi-group flag bitmask copied from the interaction bag row, forwarded to the coop request
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)