Add UART SET_LOG_LEVEL for runtime master ESP-IDF logging.

Expose the command via goTool CLI/REST and dashboard controls so log verbosity can be tuned without reflashing.

Co-authored-by: Cursor <cursoragent@cursor.com>

main/powerpod.c

@@ -14,6 +14,7 @@
 #include "cmd_ota_slave_progress.h"
 #include "cmd_led_ring.h"
 #include "cmd_battery.h"
+#include "cmd_set_log_level.h"
 #include "esp_now_comm.h"
 #include "powerpod.h"
 #include "driver/gpio.h"
@@ -73,9 +74,6 @@ uint8_t reverse_high_nibble_lut(uint8_t n) {
 }
 
 void app_main(void) {
-
-  esp_log_level_set("*", ESP_LOG_NONE);
-
   if (pod_settings_init() != ESP_OK) {
     ESP_LOGW(TAG, "settings NVS init failed; using defaults");
   }
@@ -196,6 +194,7 @@ void app_main(void) {
     cmd_battery_register();
     cmd_ota_register();
     cmd_ota_slave_progress_register();
+    cmd_set_log_level_register();
   }
 
   ESP_LOGI(TAG, "LED ring: UART LED_RING commands only (no local demo loop)");