Assign sequential pod IDs from the master with NVS-stable bindings.

Replaces MAC-byte self-IDs with master allocation (1–255), slave preferred-ID reconnect, debug reset via UART/UI, and rate-limited ASSIGN to avoid ESP-NOW NO_MEM storms.

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

main/powerpod.c

@@ -9,6 +9,7 @@
 #include "cmd_espnow_echo_ping.h"
 #include "cmd_espnow_find_me.h"
 #include "cmd_restart.h"
+#include "cmd_client_id_map_reset.h"
 #include "cmd_client_info.h"
 #include "cmd_version.h"
 #include "cmd_ota.h"
@@ -226,6 +227,7 @@ void app_main(void) {
     cmd_espnow_echo_ping_register();
     cmd_espnow_find_me_register();
     cmd_restart_register();
+    cmd_client_id_map_reset_register();
     cmd_led_ring_register();
     cmd_battery_register();
     cmd_ota_register();