Preserved additions: the AB change record

The AB source's items C1–C7 are retained in substance:

1. The induced current is added to the Wick square and stress tensor.

2. Explicit comparisons with the flux literature are included.

3. Reports A1–A5 include character-weighted quotient images and high-precision contour comparisons.

4. The Friedrichs formulas hold for every $0<\alpha <1$, not only quotient angles. Their analytical proof does not use finite sampling.

5. The AB source revises its explanation of the earlier $10^{-17}$-scale residuals: it reports a cast of image terms to IEEE double complex and an omitted diffraction term at a rounded quotient parameter. These remain reported diagnostics because the scripts and raw logs were not supplied.

6. The bibliography retains the source's access grades, with their meaning stated in Section sec:evidence. The Smith chapter's 1989/1990 citation variation is retained as a bibliographic note.

7. The deficient twisted modes and their extension families are made explicit.