Aligns with the rest of the OKD score namespace (OKDSetup01InventoryScore,
OKDBootstrap02…, OKDLoadBalancerScore, …). The Add prefix made this one
the odd name out. Renames the companion interpret (AddOkdNodeInterpret →
OKDAddNodeInterpret), the Score::name() debug string, and the
InterpretName::Custom tag for symmetry. AddNodeRole stays as-is (not a
Score, and its prefix still reads fine).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>