bv-mcp-scoring

Use when changing the bv-mcp / blackveil-dns scoring model — category weights, profiles, grade thresholds, the passed/missing-control rule, or the score computation in packages/dns-checks/src/scoring. Also use when computing an adoption, coverage, or zero-rate statistic from category scores across a corpus of domains. Symptoms: a category scores 0 unexpectedly, a grade boundary is off, profileWeights mismatch…