SAFETY-73 review: a refusal needs 22 s of evidence, and the cut-out warning is for giving only

- REFUSED_SPAN_S: the 12 cycles of evidence must also span (SETTLE_CYCLES-1) *
  LOOP_TICK_S = 22 s. At a 1 s meter, lagged healthy readings refused both
  units 10-16 times an hour after load steps (site held 0 W). 2 s and slower
  ticks are unchanged.
- REFUSES_ABOVE_CUT_OUT only for a refusal to give power: a full battery that
  stops taking charge is always above its cut-out level.
- test_delivery: its wedged fixture (0.2 s cycles) no longer reaches a refusal;
  the release/1.0 checks are restored and a span check added.
- test_refusal_units: lagged-reading and full-battery plants, two new checks,
  U14/U15 in the mutation table. Stale "> 500 W" wording fixed. DOCS/DECISIONS.

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

goodwe_controller/DOCS.md

@@ -551,15 +551,15 @@ needs, so a test never trips it. A battery that gives some power, even 100 W,
 is not refusing and keeps its request.
 
 **With two or more inverters** the same rule works per inverter. An inverter
-whose battery gives less than 100 W for 12 cycles while asked for more than
-200 W is asked 0 W, and the other inverters take over its share, each up to
+whose battery gives less than 100 W for 12 cycles, and at least 22 s, while
+asked for more than 200 W is asked 0 W, and the other inverters take over its share, each up to
 its own limits. The status page names it: *inverter-a: the battery refuses to
 give power, the others take over*. It is tested at 200 W every 15 minutes, one
 inverter at a time, and only while the site asks at least 200 W that way.
-It still accepts charge, and a minute of charging ends the refusal. When every
+It still accepts charge, and 12 cycles of charging end the refusal. When every
 inverter refuses the same way, the whole site asks 0 W as with one inverter.
-If the battery refuses while its level reads above its “Battery cut-out level”,
-the log adds one warning ending in `REFUSES_ABOVE_CUT_OUT`: check that setting.
+If the battery refuses to give power while its level reads above its “Battery
+cut-out level”, the log adds one warning ending in `REFUSES_ABOVE_CUT_OUT`: check that setting.
 A battery that refuses is not reported as *not delivering*.
 
 *For installers:* SAFETY-52 and SAFETY-73. The event log reads