OPT-11 P3, owner option A: selling off, Leftover solar takes solar only

Owner decision 2026-09-29. Selling is off until it can be judged on the price
the grid pays: packmode.SELLING_ENABLED = False makes read() answer
sell=False whatever the store holds, pack_sell is refused ("Selling is off
for now."), and the page has no selling switch; the sell code stays. Until
the P4 forecast, only Cheap hours only charges from the grid
(packmode.GRID_CHARGE_MODES); Leftover solar holds and gives in the
expensive runs. Help, Today and plan lines, DOCS and DECISIONS follow.
Replay, 16 days: Solar first + Leftover solar 19.44 EUR net (P2 19.33).

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

goodwe_controller/DOCS.md

@@ -522,9 +522,9 @@ Off by default. Turn it on, restart the add-on, and the Batteries screen (and Se
 - **On or off.** Off asks the battery for 0 W and starts no monthly cycle on it. A cycle that is running stops, and the add-on log says so. The peak limit may still use it, but only for what the other batteries cannot cover.
 - **Mode.**
   - *Solar first* charges from spare solar before the other batteries and covers the house at any hour. It never charges from the grid and never sells.
-  - *Leftover solar* charges from the solar the others cannot take, and from the grid in the cheapest hours. It saves its power for the expensive hours and covers the house then.
-  - *Cheap hours only* does the same with the grid. Until the solar forecast arrives, *Leftover solar* also tops up from the grid like this.
-- **Sell in expensive hours.** For *Leftover solar* and *Cheap hours only*. In the most expensive hours the battery gives its full power: the house first, the rest to the grid. It stops at *Trading keeps at least* (`arbitrage_soc_floor`). The sale is judged on the price you pay, but the grid pays you the lower injection price, so selling rarely pays; on the replay it did not (`DECISIONS/OPT-11-battery-modes.md`).
+  - *Leftover solar* charges from the solar the others cannot take, never from the grid (until the solar forecast arrives). It saves its power for the expensive hours and covers the house then.
+  - *Cheap hours only* charges from the grid in the cheapest hours, saves its power for the expensive hours and covers the house then.
+- **Selling** is off until it can be judged on the price the grid pays (owner decision 2026-09-29, option A).
 
 With battery modes on, these choices replace the *Charging and selling on price* switch (`arbitrage_enabled`); that switch is only read with modes off.
 
@@ -547,7 +547,7 @@ With battery modes on, these choices replace the *Charging and selling on price*
 
 *For installers:* a mode is a limit at priority 35, kept apart from the hard limits. It gives way only as far as a limit above it (the peak guard) needs. A mode range always holds 0 W, so a mode can forbid a direction and never force one. With one inverter the mode also bounds the loop. The record is `DECISIONS/OPT-11-battery-modes.md`.
 
-*For installers:* when a charge or sale ends, the loop restarts at the house's own level rather than at the trade's watts. On the replay model that removes a ~3 kW import spike after a 2.5 kW charge and halves the settling time; about 0.1 × the battery's power still overshoots as export. Selling is the `pack_sell` action (and the *Mode* list gains *Cheap hours only* in Home Assistant, at the end).
+*For installers:* when a charge or sale ends, the loop restarts at the house's own level rather than at the trade's watts. On the replay model that removes a ~3 kW import spike after a 2.5 kW charge and halves the settling time; about 0.1 × the battery's power still overshoots as export. The *Mode* list gains *Cheap hours only* in Home Assistant, at the end.
 
 ### Reading the grid-following loop: `Loop integrator`, `Loop integrator lead`, `Loop reason`
 
@@ -3282,9 +3282,8 @@ The **Batteries** tab has a card per battery: its level, and three lines.
 **Now** says what it does, **Today** lists the blocks planned for it (price
 trades, the monthly cycle, the peak limit), and **Why** says the reason. With
 battery modes on, each card also has the On/Off switch and the mode list; both
-apply at once. Charging in cheap hours and selling are greyed out until a later
-update, and Today reads "Not planned yet" when nothing is planned for the
-battery.
+apply at once. Today reads "Not planned yet" until the add-on has made the
+day's price runs.
 
 An Off battery that the peak limit still needs says so, with the power it
 gives: "Off, but gives 0.5 kW for the peak limit."