mcp-tools-107.{mmd,svg} -> mcp-tools.{mmd,svg} and
auto-combo-12factor.{mmd,svg} -> auto-combo-scoring.{mmd,svg}: filenames that
embed a canonical count fossilize the moment the count moves (107 -> 110,
12 -> 15 factors already happened). All referencers updated — diagrams index,
AUTO-COMBO.md (+ its pl/zh-CN/zh-TW mirrors' links) and the check:docs-counts
file list.