DocRes direct pixel dewarping: publication reports

All results are diagnostics on the same 16 training images, with no held-out evaluation.
A uses an identity target and a different mask. D is an existing pretrained coordinate reference, not a matched-budget causal control. Round 3 completed only 500 dewarp updates, plus the 500 identity updates used to train A.

Files are copied unchanged from experiments/dewarp_direct_pixel_regression. The JSON reports provide evaluation points for the figures; endpoints.csv provides endpoint metrics; regions.json records the fixed GT crop coordinates. No data or weights are included.
