Implement MRMS review feedback: explicit source metadata, product fallbacks, and robust pre-v12 band selection#480

aldenks merged 3 commits intoclaude/implement-noaa-mrms-conus-oYYuddynamical-org/reformatters:claude/implement-noaa-mrms-conus-oYYudfrom

copilot/implement-pr-feedback-472dynamical-org/reformatters:copilot/implement-pr-feedback-472Copy head branch name to clipboard