Camera compatibility program: verify beyond X4 Air and ONE X2

For the Flathub listing and after: verified today are X4 Air and ONE X2 (every convention settled empirically against real footage - none were derivable from docs, two contradicted community tables). Expected-working unverified: X4 (upstream claims a DIFFERENT IMU orientation than we measured on the Air - one of them is wrong; horizon may tilt out of the box), X5 (unverified IMU/datum/readout; richer .pb sidecar unused). Low confidence: X3, ONE X, RS 360 (different layouts/calibration versions). The failure mode is graceful by construction (factory calibration, corrections off, no crash). The instrument suite (24-way sweep, accel-aim, dip, seam fitter, readout instruments - all with regime-sized controls) makes onboarding a new model about a day given ten seconds of sample footage. Listing states the tiers honestly; community footage drives the queue post-publish; contributors can run the instruments themselves.