Three deliverables:
1. scripts/crt_qprofile_sweep.py
Safety factor optimization (R1 from toroidal refinement). Replaces
brute-force modulus selection with systematic q-profile sweep.
Tests: q < 1 (poloidal) vs q > 1 (toroidal) Sidon rate,
simple rational q vs non-simple (R2 cross-pair coprimality).
All integer arithmetic (Fraction for q).
2. docs/research/GERVER_SIDON_DESIGN.md
Direction B design: actual Gerver sofa (18 arcs) with CRT Sidon
boundary in ℤ², high-resolution motion (T=100), justified tolerance.
Explains why Direction A failed and what Direction B fixes.
Honest assessment: long shot, but more promising than v2/v3.
3. (Report in /tmp — uploaded separately)
Negative result write-up: sofa coloring doesn't detect q=1 at
justified tolerance. HN spectral database: Hoffman tight for
regular graphs, gap=1 for unit-distance. CRT n-moduli generalization.
