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/app/static/app.js

@@ -314,8 +314,8 @@
   /* ---------------- Batteries (UX-13 P3) ---------------- */
   // One card per battery. With battery modes on (`mode_key` in /status) each
   // card has an On/Off switch and a mode list, sent as `pack_use` and
-  // `pack_mode` through /action (OPT-11 P1), and a selling switch, sent as
-  // `pack_sell` (P3; Leftover solar and Cheap hours only). The Now, Today and Why lines are
+  // `pack_mode` through /action (OPT-11 P1). Selling has no switch while it
+  // is off (owner decision 2026-09-29). The Now, Today and Why lines are
   // homeview.py's sentences. The Simple settings view draws the same switch
   // and list into its own card (simpleHost).
   const MODES = ["solar_first", "leftover_solar", "cheap_hours"];
@@ -331,7 +331,6 @@
       const j = await r.json().catch(() => ({}));
       if (!r.ok) toast(j.error || t("toast.failed"));
       else if (what === "pack_use") toast(say(value ? t("batteries.toast.on") : t("batteries.toast.off"), { name: b.name }));
-      else if (what === "pack_sell") toast(say(value ? t("batteries.toast.sell_on") : t("batteries.toast.sell_off"), { name: b.name }));
       else toast(say(t("batteries.toast.mode"), { name: b.name, mode: t("batteries.choice." + value + ".name") }));
     } catch (e) { toast(t("toast.failed")); }
     finally { packBusy = false; }
@@ -348,16 +347,6 @@
                          onchange: (e) => packAct("pack_mode", b, e.target.value) },
       ...MODES.map((k) => h("option", { value: k, selected: b.mode_choice === k }, t("batteries.choice." + k + ".name"))));
   }
-  function sellRow(b, i, where) {
-    const lid = "bsl-" + where + i;
-    const can = b.use && b.can_sell === true;
-    return h("div", { class: "f inline" },
-      h("div", {}, h("div", { class: "lbl", id: lid }, t("batteries.sell.name")),
-        h("div", { class: "help" }, b.can_sell === true ? t("batteries.sell.description") : t("batteries.sell.off"))),
-      h("div", { class: "ctl" }, h("button", { type: "button", class: "switch", role: "switch", id: "bsw-sell-" + where + i,
-                                               "aria-checked": String(can && b.sell === true), "aria-labelledby": lid, disabled: !can,
-                                               onclick: () => packAct("pack_sell", b, !(b.sell === true)) })));
-  }
   function todayLines(b) {
     if (!b.today || !b.today.length) return b.today_line || "–";
     return b.today.map((r) => h("div", {}, r.from + " " + t("plan.time_to") + " " + r.to + ": " + r.what));
@@ -375,8 +364,7 @@
       modes ? h("div", { class: "modebox" },
         h("label", { class: "lbl small", for: "bsel-c" + i }, t("batteries.mode")),
         modeSelect(b, i, "c", null),
-        h("div", { class: "help" }, t("batteries.choice." + b.mode_key + ".description")),
-        sellRow(b, i, "c")) : null,
+        h("div", { class: "help" }, t("batteries.choice." + b.mode_key + ".description"))) : null,
       levelBar(b.level_pct, b.name),
       h("dl", { class: "kv" },
         h("dt", {}, t("batteries.level")), h("dd", {}, lvl + stored),