Magnetic Friction and Joule Tension at a Dipole Seat — an Exact-Ratio Encounter Ledger (DEQGT)

An exact-ratio encounter ledger: a compact dipole seat priced in Joule Tension, the square of the field over twice the vacuum permeability, for an orbital encounter with a crewed vehicle on declared parameters. All quantities derived in exact rational arithmetic; nothing fitted. Mass nowhere lost, only transferred, with its mass-equivalent booked in both energy dresses. A miss-distance ladder prices the encounter from benign to structural. Companion record: The Zettajoule and the Landauer Ledger, DOI 10.5281/zenodo.23677881.