built-in Sentinel-2A, Sentinel-2B, and Sentinel-2C canonical nir now map
to B08 from rsrf>=0.3.1, matching the SIAC-facing semantic band contract
the prepared-runtime schema advanced to 3.1.0 so previously published
0.6.2 runtimes using Sentinel nir -> B8A are rejected instead of being
reused silently
the official Sentinel-2A example bundle, docs, and packaged prepared runtime
were regenerated against the new B08 mapping