The Folman Phase Spine and the Operator-Complete pi/8 Reference-Switch Test

A passive coordinate seam is a negative control, not a physical reference switch. This paper develops a four-channel Gram-ratio test for an A1 reference switch. Its registered fork is simple: \[ H_{\rm std}:R_{\rm Gram}=1, \qquad H_{\rm QTT-A1}:R_{\rm Gram}=\cos\!\left(\frac{\pi}{8}\right). \] The new seam-no-activation theorem blocks a particularly dangerous false positive. A standard angular boundary term can change when a coordinate seam is moved; a physical terminal history cannot. If the candidate signal follows a passive seam, it is ineligible as both evidence for and falsification of the A1 branch. The published point targets, ratio orientation, calibration restrictions, ordinary-null controls, and original locks are preserved. The unresolved task is experimental: demonstrate a hardware-level physical distinction between the two terminal reference histories without programming the target into the apparatus. Clock, ruler and signal-recovery qualification. Both registered predictions are constructed at the raw detector with explicit proper-time, coordinate-time, worldline, ruler and synchronization conventions. Each relativistic effect is counted once. Independently calibrated corrections carry their uncertainties through the common comparison; the tested rows cannot train a normalization that forces either answer. Blind recovery is required separately for both alternatives at every predeclared operating setting. The inherited targets and decision rules remain fixed. The included design study makes sensitivity explicit: for the Two-Test Gram classifier, a total ratio uncertainty of 0.0013 gives approximately 88.9% QTT-branch and 94.1% ordinary-branch power under the stated ideal model. These are conditional detection probabilities, not probabilities that a theory is true, and each instrument retains its own classifier. The complete apparatus packet must be sealed before acquisition and target access; historical campaign rules remain preserved. Reconstruction entry point. Start with current/CURRENT_RELATIVISTIC_EXECUTION.md in the ZIP. The shared execution contract refers once to the development filename CURRENT_EXECUTION_RC.md; that reference means CURRENT_RELATIVISTIC_EXECUTION.md in this release. The packaged README names the correct file. This navigation correction does not change the deposited files, scientific requirements or historical seals.