Made proper response structure for network scan

app/src/routes/wifi/sta/Scan.svelte

@@ -39,19 +39,20 @@
 
     async function pollingResults() {
         const result = await api.get<ProtoResponse>('/api/wifi/networks')
-        if (result.isErr()) {
+        if (result.isErr() || !result.inner) {
             console.error(`Error occurred while fetching: `, result.inner)
             return false
         }
-        if (result.inner.wifiNetworkList) {
-            listOfNetworks = result.inner.wifiNetworkList.networks
-        }
-        scanActive = false
-        if (listOfNetworks.length) {
+        // Check if scan is complete (status 200 means we have results)
+        if (result.inner.statusCode === 200 && result.inner.wifiNetworkList) {
+            listOfNetworks = result.inner.wifiNetworkList.networks ?? []
+            scanActive = false
             clearInterval(pollingId)
             pollingId = 0
+            return listOfNetworks.length
         }
-        return listOfNetworks.length
+        // Still scanning (status 202)
+        return 0
     }
 
     onMount(() => {

esp32/src/communication/webserver.cpp

@@ -364,6 +364,7 @@ esp_err_t WebServer::sendOkProto(httpd_req_t* req) { return sendProto(req, 200,
 
 esp_err_t WebServer::sendProto(httpd_req_t* req, int status, const uint8_t* data, size_t len) {
     httpd_resp_set_status(req, status == 200   ? "200 OK"
+                               : status == 202 ? "202 Accepted"
                                : status == 400 ? "400 Bad Request"
                                : status == 404 ? "404 Not Found"
                                : status == 500 ? "500 Internal Server Error"

esp32/src/wifi_service.cpp

@@ -47,15 +47,21 @@ esp_err_t WiFiService::handleScan(httpd_req_t *request) {
         WiFi.scanDelete();
         WiFi.scanNetworks(true);
     }
-    httpd_resp_set_status(request, "202 Accepted");
-    return httpd_resp_send(request, nullptr, 0);
+    // Return 202 with empty_message payload (no pointer fields to encode)
+    api_Response response = api_Response_init_zero;
+    response.status_code = 202;
+    response.which_payload = api_Response_empty_message_tag;
+    return WebServer::sendProto(request, 202, response, api_Response_fields);
 }
 
 esp_err_t WiFiService::getNetworks(httpd_req_t *request) {
     int numNetworks = WiFi.scanComplete();
     if (numNetworks == -1) {
-        httpd_resp_set_status(request, "202 Accepted");
-        return httpd_resp_send(request, nullptr, 0);
+        // Scan in progress - return 202 with empty_message payload
+        api_Response response = api_Response_init_zero;
+        response.status_code = 202;
+        response.which_payload = api_Response_empty_message_tag;
+        return WebServer::sendProto(request, 202, response, api_Response_fields);
     } else if (numNetworks < -1) {
         return handleScan(request);
     }
@@ -75,6 +81,7 @@ esp_err_t WiFiService::getNetworks(httpd_req_t *request) {
     }
 
     api_Response response = api_Response_init_zero;
+    response.status_code = 200;
     response.which_payload = api_Response_wifi_network_list_tag;
     response.payload.wifi_network_list.networks = networks;
     response.payload.wifi_network_list.networks_count = count;