Replace post-202504 SNOMED codes in EX01 expand pool

1371571000 (Injury of limb, Sep 2025) → 128605003 (Disorder of limb)
897444001 (Structural abnormality of skeleton, Jul 2025) → 88230002 (Disorder of skeletal system)

Both replacements use the direct parent concept, published 2002,
with similar descendant counts and not previously in the pool.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: orlandow