OPT-23-28 review: the unheld-shortfall line says another battery or the grid

With A on Leftover solar and B on Cheap hours (the dynamic scenario, and the
owner's planned setup), the line said "The batteries cannot hold it all. The
grid covers N kWh", while B holds a full charge for the same hours. It now
says "The expensive hours need more than Leftover solar can hold. The rest,
N kWh, comes from another battery or the grid." (NL likewise). DOCS,
DECISIONS and the dayplan/homeview docstrings say the same. Text only.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Bdqr7PiaHcBnzPituu2yTC

goodwe_controller/app/ui_text/en.json

@@ -360,7 +360,7 @@
       "tops_up": "It charges from the grid to {pct}. That covers {kwh} of expensive hours the sun will not.",
       "no_forecast": "No solar forecast, so it charges from solar only."
     },
-    "solar": {"line": "Solar still to come today: {kwh}, we count on {count}. Updated {at}.", "uncovered": "The batteries cannot hold it all. The grid covers {kwh} of the expensive hours.", "no_forecast": "No solar forecast now, so Leftover solar charges from solar only.", "learning": "The add-on is learning your house's use. The plan starts after one full day."},
+    "solar": {"line": "Solar still to come today: {kwh}, we count on {count}. Updated {at}.", "uncovered": "The expensive hours need more than Leftover solar can hold. The rest, {kwh}, comes from another battery or the grid.", "no_forecast": "No solar forecast now, so Leftover solar charges from solar only.", "learning": "The add-on is learning your house's use. The plan starts after one full day."},
     "today": {
       "not_planned": "Not planned yet.",
       "no_runs": "No cheap or expensive hours left today.",