Run3 kill table

All six bases passed; no timeout. Every change restored exact bytes and tracked git status.

Check	Named killer	Base seconds	Changed seconds	Result
M1	row278 browser lists held claims	0.816	3.774	killed
M2	row278 browser lists held claims	0.816	0.766	killed
M3	row278 browser claims 403 stays local	0.866	3.925	killed
M4	row278 tester socket refuses thread claims	0.214	0.214	killed
M5	row278 Console adapter calls argument-free	0.315	0.315	killed
M6	row278 browser claims 403 stays local	0.866	3.823	killed