Development record

The rules package's load-idiom test fails with exit status 3 and an empty stderr when pgrep runs but cannot read the process list. After the 2026-10-16 screen-server restart, every session started before it got 'pgrep: Cannot get process list' (sysmond unreachable). The test only checks that pgrep is on PATH, then waits ten seconds for two processes pgrep can never see, so make preflight failed with no reason given.