SAFETY-78 review: card truth while the drain waits, more checks

- homeview: no "This one does not charge" while the draining battery waits
  (no floor then, so the other battery may charge from solar).
- test_safety78: one wait line across a probe, a second episode logs again,
  the card while waiting, and a seeded sweep of the floor against every
  other claim (part 6).
- DECISIONS: the wait case, and the measured N=1 peak and N=2 charge
  follow-ups.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

goodwe_controller/DECISIONS/SAFETY-78-drain-at-two.md

@@ -29,10 +29,16 @@ direction. Opposite splits stay forbidden.
   floor, and the wait is logged once per episode.
 - With battery modes on, no pack is a grid charger while another drains
   (`modetrade.decide(draining=)`, why `cycle`), and the other battery's card
-  says why (`other_cycle`).
+  says why (`other_cycle`). Not while the drain waits: no floor is filed
+  then, so the other battery may charge from solar.
 - Not filed at N=1, where the drain is the site SET itself: byte-identical
   (`tools/safety78_identity.py`, which hashes the claims too).
 
-**Not changed.** At N=1 a drain (60) still outranks the peak floor (50), so
-the peak guard does not add to a drain there. That is pre-existing and kept by
-the N=1 identity.
+**Not changed (measured in the PR #154 review, follow-ups).**
+- At N=1 a drain (60) outranks the peak floor (50), so the guard does not add
+  to it: a 5000 W house imports 3000 W against a 2500 W limit, a 6000 W house
+  4000 W. Pre-existing, kept by the N=1 identity.
+- At N=2 a maintenance CHARGE in a cheap window has the same stall: the
+  charging pack's `hi = -floor` against the loop asking the other to give is
+  refused on 141 of 261 cycles. The mirror fix is a site `hi`, which can meet
+  the peak floor's `lo` (0 W), so it is not this card.