test_safety95.py: the N=1 byte-identity now covers all six drain ends
(Off and stale link were missing); end_at()/measure() read through a
default, so test_named_absence.py passes (it failed on bdec66e); a check
that a dropped battery's start is 0 W even under a pinned charge (it
kills a mutation that survived).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>