Add relay enable toggles to WebUI

firmware/esp32/overland-controller/overland-controller.ino

@@ -1249,11 +1249,20 @@ function renderConfigControls(data){
         <div class="configrow">
           <label>${r.id}</label>
           <input id="relayName${i}" placeholder="Relay name" oninput="markConfigFieldTouched('relayName${i}')">
-          <label>${r.enabled?"Enabled":"Disabled"}</label>
+          <label class="tempCheck">
+            <input id="relayEnabled${i}" type="checkbox" onchange="markConfigFieldTouched('relayEnabled${i}')">
+            Enabled
+          </label>
         </div>`).join("");
     }
 
-    relays.forEach((r,i)=>setConfigValue("relayName"+i,r.name||""));
+    relays.forEach((r,i)=>{
+      setConfigValue("relayName"+i,r.name||"");
+      const enabled=$("relayEnabled"+i);
+      if(enabled && !configTouched["relayEnabled"+i] && document.activeElement!==enabled){
+        enabled.checked=!!r.enabled;
+      }
+    });
   }
 
   setConfigValue("tempEnabledCount", temps.filter(t=>t.enabled).length);
@@ -1359,8 +1368,8 @@ async function saveRelayConfig(){
   const relays=data.config?.relays||[];
 
   for(let i=0;i<relays.length;i++){
-    const name=$("relayName"+i)?.value.trim();
-    if(!name) continue;
+    const name=$("relayName"+i)?.value.trim() || relays[i].name || relays[i].id;
+    const enabled=$("relayEnabled"+i)?.checked ?? relays[i].enabled;
 
     await fetch(api("/config/relay"),{
       method:"POST",
@@ -1368,14 +1377,14 @@ async function saveRelayConfig(){
       body:JSON.stringify({
         id:relays[i].id,
         name:name,
-        enabled:relays[i].enabled
+        enabled:enabled
       })
     });
   }
 
   await fetch(api("/config/save"),{method:"POST"});
   await load();
-  alert("Relay names saved");
+  alert("Relay settings saved");
 }
 
 async function saveTempConfig(){
@@ -2643,9 +2652,19 @@ void sendError(Stream& output, const char* message) {
 
 int findRelayConfigIndex(const String& id);
 
+bool relayExistsAndAvailable(const String& relayId) {
+    int index = findRelayConfigIndex(relayId);
+    return index >= 0 && appConfig.relays[index].available;
+}
+
+bool relayIsEnabled(const String& relayId) {
+    int index = findRelayConfigIndex(relayId);
+    return index >= 0 && appConfig.relays[index].enabled;
+}
+
 bool setRelayById(const String& relayId, bool enabled) {
     int index = findRelayConfigIndex(relayId);
-    if (index < 0 || !appConfig.relays[index].available) {
+    if (index < 0 || !appConfig.relays[index].available || !appConfig.relays[index].enabled) {
         return false;
     }
 
@@ -3651,7 +3670,13 @@ void handleUpdateRelayConfig() {
     }
 
     if (doc["name"].is<String>()) appConfig.relays[index].name = doc["name"].as<String>();
-    if (doc["enabled"].is<bool>()) appConfig.relays[index].enabled = doc["enabled"].as<bool>();
+    if (doc["enabled"].is<bool>()) {
+        appConfig.relays[index].enabled = doc["enabled"].as<bool>();
+        if (!appConfig.relays[index].enabled) {
+            relays.state[index] = false;
+            updateRelayOutputs();
+        }
+    }
 
     sendOkConfig();
 }
@@ -3994,10 +4019,18 @@ void handleSetRelayPost() {
     bool state = doc["state"] | false;
 
     unsigned long applyStartMs = millis();
-    if (!setRelayById(relayId, state)) {
+    if (!relayExistsAndAvailable(relayId)) {
         server.send(404, "application/json", "{\"ok\":false,\"error\":\"unknown_relay\"}");
         return;
     }
+    if (!relayIsEnabled(relayId)) {
+        server.send(409, "application/json", "{\"ok\":false,\"error\":\"relay_disabled\"}");
+        return;
+    }
+    if (!setRelayById(relayId, state)) {
+        server.send(409, "application/json", "{\"ok\":false,\"error\":\"relay_disabled\"}");
+        return;
+    }
     unsigned long appliedMs = millis() - applyStartMs;
 
     DynamicJsonDocument response(512);
@@ -4052,10 +4085,18 @@ void handleGenericRelayRoute() {
         return;
     }
 
-    if (!setRelayById(relayId, enabled)) {
+    if (!relayExistsAndAvailable(relayId)) {
         server.send(404, "application/json", "{\"ok\":false,\"error\":\"unknown_relay\"}");
         return;
     }
+    if (!relayIsEnabled(relayId)) {
+        server.send(409, "application/json", "{\"ok\":false,\"error\":\"relay_disabled\"}");
+        return;
+    }
+    if (!setRelayById(relayId, enabled)) {
+        server.send(409, "application/json", "{\"ok\":false,\"error\":\"relay_disabled\"}");
+        return;
+    }
 
     DynamicJsonDocument doc(512);
     doc["ok"] = true;