UX-08 2c review: unit settings anchor to inverters, plainer texts

- messages.setting() for one inverter in the list reads
  “Inverter rating” for inverter-b (inverters.max_w), so the config panel
  files per-unit reasons under `inverters`, where the value is changed.
- The tariff card and plausibility reasons name
  “Distribution, levies and VAT” (price_taxes_eur_kwh) again.
- The wrong-direction reasons say "safety stop", the sign_disagree_w
  option says what it protects, and the roster, price-entity,
  integrator_max_w and capacity_kwh texts read more plainly.
- NL: stuurprint -> stuurmodule, "De piekbeperking".

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

goodwe_controller/test_price.py

@@ -2198,7 +2198,7 @@ _ps = validate_startup_config(
     -5000, 5000)
 check("a static_profile AND the Home Assistant price entities is refused too - "
       "main.py reads one of them for `cheap` and the loser is silent",
-      len(_ps) == 1 and why(_ps, "Home Assistant price entities would count"))
+      len(_ps) == 1 and why(_ps, "(price_now_entity) and “Average price entity” (price_avg_entity) would win"))
 check("the Home Assistant entities alone still start, so nothing is taken away "
       "from a live install",
       validate_startup_config(vbase(price_now_entity="sensor.now",
@@ -3428,7 +3428,7 @@ check(f"network charges folded into `offset` move the card's own price to "
 check(f"...and it is refused, by the CARD rule, naming the discrepancy and "
       f"the network-charge cause ({_double[:60]!r})",
       "does not match its own card" in _double and "the card says" in _double
-      and "network charges are not in the offset" in _double)
+      and "(price_taxes_eur_kwh), not in the offset" in _double)
 
 _CORRUPTIONS = {
     "VAT left out (vat_pct 0)": spoilt(vat_pct=0),
@@ -5360,7 +5360,7 @@ _T16_DIFFER = [
     # UX-08 2c: a negative factor gets one sentence on both legs now ("put the
     # minus sign on the offset"), so it left this table.
     ("a card miss -> what else to check on THIS leg",
-     spoilt(factor=0.120), "network charges are not in the offset",
+     spoilt(factor=0.120), "(price_taxes_eur_kwh), not in the offset",
      "vat_pct is 0 for injection"),
     ("invalid JSON -> WHEN this option is read at all, which is not the "
      "same answer on the two legs: `price_formula` decides nothing unless "