Breach-Ward Three-Route Transfer / 裂缝病区三路转运机制

This mechanism turns a ward handoff into one exclusive custody route with visible relief, cost, owner, and downstream readback.

State contract

breach_ward_transfer:
  trigger_kind: state_pressure
  required_ledger: card-storyteller-breach-ward-ledger
  assigned_slots: 2
  selected_route_count: 1
  evidence_owner_count: 1
  route_map_gained: card-storyteller-ward-route-map
  future_reader: storyteller-event-25-unauthorized-memorial
  no_fixed_turn_trigger: true
  no_dashboard_or_lens_health_trigger: true

Exclusive route invariant

public_rescue
XOR white_glove_garage
XOR fan_oxygen_corridor

The selected route must have the matching evidence owner:

Route	Owner state	Required pressure delta
public_rescue	public_medical_record	custody integrity + public accountability + continuity hazard
white_glove_garage	white_glove_audit	custody integrity + testimony debt + continuity relief
fan_oxygen_corridor	fan_mutual_aid	oxygen relief + public accountability + custody-chain gap

The mechanism fails if two routes are selected, no owner is visible, or a generic completion flag is the only branch evidence.

Downstream readback

Event 25 may suppress or circulate the unauthorized memorial, but it must preserve the route chosen before the memorial existed. The route map is a required in-hand object, and both event choices record that the memorial inherited the ward transfer route.

The event does not turn custody provenance into authority. The transfer route may explain which chain presents the evidence; it cannot determine who owns a voice, archive, person, treatment decision, or memorial.

Compatibility rule

Historical indices remain stable:

• option 0 remains public accountability;
• option 1 remains internal/white-glove containment;
• option 2 adds the previously missing fan oxygen corridor.

The completion flag and two-slot shape remain unchanged for existing Ai Sheng and ward replay chains.