EXPERIMENT 54 VERIFICATION
==========================
Compilation tested successfully.
Execution tested successfully.

Replay seed:
9783790101901

Scenarios: 30
Dataset modes per scenario: 2
Total executions: 60
Compile errors: 0
Runtime errors: 0

This is a diagnostic replay of the Experiment 51 holdout.
It adds no independent paired evidence.

Successful signature catalogue:

Scenario 06
- transition: REAR_BOUNDARY_LOCK_TO_COMPLETE_CABIN
- perturbation family: B_MINIMAL_LATE
- delta: +9
- first divergence: 102
- differing positions: 2
- dependency depth: 7 -> 0
- critical tree size/depth: 7/7
- yield type: NO_YIELD_OCCUPANT
- prerequisite: ANOTHER_ACTIVE_SEAT_EVENT
- required blockers: 2
- unavailable yield tile: 31
- one empty tile would start: false
- one-tile-earlier hold would preserve: false

Scenario 19
- transition: REAR_BOUNDARY_LOCK_TO_COMPLETE_CABIN
- perturbation family: B_MINIMAL_LATE
- delta: +5
- first divergence: 103
- differing positions: 2
- dependency depth: 5 -> 0
- critical tree size/depth: 5/5
- yield type: NO_YIELD_OCCUPANT
- prerequisite: INSUFFICIENT_REAR_YIELD_SPACE
- required blockers: 2
- unavailable yield tile: 31
- one empty tile would start: false
- one-tile-earlier hold would preserve: false

Scenario 25
- transition: LINKED_ROW_EVENT_CHAIN_TO_COMPLETE_CABIN
- perturbation family: C_BROAD_EARLY
- delta: +10
- first divergence: 23
- differing positions: 6
- dependency depth: 9 -> 0
- critical tree size/depth: 9/9
- yield type: ACTIVE_EVENT_TRANSIENT
- prerequisite: YIELD_TILE_OCCUPIED
- required blockers: 1
- unavailable yield tile: 30
- one empty tile would start: true
- one-tile-earlier hold would preserve: true

Aggregate catalogue:
- successful conversions: 3
- aggregate passenger gain: +24
- average dependency depth: 7.00 -> 0.00
- average critical tree size/depth: 7.00/7.00
- average required blockers: 1.67
- transition counts:
  LINKED_ROW_EVENT_CHAIN_TO_COMPLETE_CABIN=1
  REAR_BOUNDARY_LOCK_TO_COMPLETE_CABIN=2
- prerequisite counts:
  ANOTHER_ACTIVE_SEAT_EVENT=1
  INSUFFICIENT_REAR_YIELD_SPACE=1
  YIELD_TILE_OCCUPIED=1
- yield-type counts:
  ACTIVE_EVENT_TRANSIENT=1
  NO_YIELD_OCCUPANT=2
- perturbation-family counts:
  B_MINIMAL_LATE=2
  C_BROAD_EARLY=1

Interpretation:
The three successful conversions share complete dependency collapse and
non-trivial critical trees, but not one universal prerequisite or perturbation
family.

The catalogue is post-run explanatory evidence, not a pre-movement predictor.

Official findings require the user's saved run.
