[aledbf]

Takes go-tools 8ea5167 (#21), which changes only the mutation gate's memory bound from #20:

• each bounded test process is watched by a goroutine of its own that ends when the process does, instead of one poller shared by all that never ended and scanned /proc with nothing running;
• the walk of a process's tree from /proc visits each process once, so a pid reused mid-scan cannot turn it into an endless loop.

What the gate reports is unchanged: an edit that passes its share of the memory is still stopped and reported refused with the bound.

go.mod and go.sum only; lint (with the new tools), build, vet and the tests of the packages that import go-tools are green.

🤖 Generated with Claude Code

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