Appended at the foot with docs/queue-index.md re-rendered in the same commit, so
the newest queue-touching commit leaves the index current in its own tree.
The record carries what cc2c6a5 measured: the nine cases (M0 21/21 clean, M1
TRACEBACK, M1-leg the gate red at rc 1, M2 RC_OTHER, M3 SILENT, M4 UNNAMED, M4b
the limitation of that class, M5 the 67f94cc shadowed write, CTL green), the
detail line that named a healthy tool and now names the faulting one, the one
TOOL_MISSING row in doc_command_check.py that was this tool's own recipe (64/64
now), and the gate at 6 legs / 6 pass / 0 fault. No Q-item opened or closed; the
open set still reads Q37, Q53, Q64.