fix(ota): remove artificial chunk delay and enlarge buffer to prevent connection timeout

main/ota_manager.c

@@ -494,9 +494,10 @@ static void ota_download_task(void *arg)
     esp_http_client_config_t http_cfg = {
         .url = s_release.download_url,
         .transport_type = HTTP_TRANSPORT_OVER_SSL,
-        .timeout_ms = 30000,
+        .timeout_ms = 45000,
         .keep_alive_enable = true,
-        .buffer_size = 2048,
+        .buffer_size = 4096,
+        .buffer_size_tx = 2048,
         .cert_pem = s_isrg_root_x1_pem,
         .cert_len = sizeof(s_isrg_root_x1_pem),
     };
@@ -533,6 +534,7 @@ static void ota_download_task(void *arg)
         }
     }
 
+    int chunk_counter = 0;
     while (1) {
         if (s_cancel_requested) {
             ESP_LOGW(TAG, "OTA canceled by user");
@@ -555,7 +557,10 @@ static void ota_download_task(void *arg)
         if (read > 0) s_bytes_read = (size_t)read;
         if (total > 0) s_total_bytes = (size_t)total;
 
-        vTaskDelay(pdMS_TO_TICKS(10));
+        /* Yield every 4 chunks (16 KB) to feed the task watchdog without throttling throughput */
+        if (++chunk_counter % 4 == 0) {
+            vTaskDelay(1);
+        }
     }
 
     rfid_manager_pause(false);