Loadpoint: fix config error for disabled loadpoints (#32880)

Co-authored-by: claude[bot] <41898282+claude[bot]@users.noreply.github.com>
Co-authored-by: andig <cpuidle@gmail.com>
Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
Co-authored-by: Michael Geers <michael@geers.tv>

server/http_config_loadpoint_handler.go

@@ -13,6 +13,7 @@ import (
 	"github.com/evcc-io/evcc/util"
 	"github.com/evcc-io/evcc/util/config"
 	"github.com/evcc-io/evcc/util/templates"
+	"github.com/go-viper/mapstructure/v2"
 	"github.com/gorilla/mux"
 )
 
@@ -119,8 +120,9 @@ func loadpointConfig(dev config.Device[loadpoint.API]) (loadpointFullConfig, err
 			return loadpointFullConfig{}, err
 		}
 
+		// non-strict: runtime settings (mode, ...) are persisted alongside the config
 		var static loadpoint.StaticConfig
-		if err := util.DecodeOther(staticMap, &static); err != nil {
+		if err := mapstructure.Decode(staticMap, &static); err != nil {
 			return loadpointFullConfig{}, err
 		}
 

server/http_config_loadpoint_handler_test.go

@@ -25,6 +25,7 @@ func TestLoadpointConfigDisabledNilInstance(t *testing.T) {
 			"charger": "wallbox",
 			"meter":   "lp-meter",
 			"title":   "Garage",
+			"mode":    "pv", // runtime setting persisted by the settings adapter
 		},
 	}
 

tests/config-disable.spec.ts

@@ -59,6 +59,21 @@ test.describe("disable / enable", async () => {
     await page.reload();
     await createLoadpoint(page, "Garage");
 
+    // restart to bring both loadpoints live
+    await restart();
+    await page.reload();
+
+    // switch charge mode on dashboard; runtime setting is persisted next to the loadpoint config
+    await page.goto("/");
+    const modeButton = page
+      .getByTestId("loadpoint")
+      .nth(0)
+      .getByTestId("mode")
+      .getByRole("button", { name: "Fast" });
+    await modeButton.click();
+    await expect(modeButton).toHaveClass(/active/);
+    await page.goto("/#/config");
+
     const target = page.getByTestId("loadpoint").nth(0);
 
     await toggleLoadpointDisable(page, 0, "Disable");
@@ -66,10 +81,11 @@ test.describe("disable / enable", async () => {
     // card shows disabled state
     await expect(disabledBadge(target)).toBeVisible();
 
-    // restart, no fatal
+    // restart, no fatal, both loadpoints still listed
     await restart();
     await page.reload();
     await expectNoFatal(page);
+    await expect(page.getByTestId("loadpoint")).toHaveCount(2);
     await expect(disabledBadge(target)).toBeVisible();
 
     // re-enable by clicking the disabled card