Send ESP-NOW accel only on deadzone change and harden BLE+WiFi OTA coex.

Quiet pods no longer spam 100 Hz samples; mute wifi logs and throttle BLE
notifies during slave distribution so the wifi task stack does not panic.

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

main/esp_now_master.c

@@ -780,7 +780,11 @@ static void monitor_task(void *param) {
 
   while (1) {
     vTaskDelay(pdMS_TO_TICKS(ESPNOW_HEARTBEAT_INTERVAL_MS));
-    client_registry_check_timeouts(ESPNOW_CLIENT_TIMEOUT_MS);
+    /* During ESP-NOW OTA dist the recv_cb drops heartbeats; do not wipe
+     * targets from the registry while they are still being updated. */
+    if (!ota_espnow_distribution_active()) {
+      client_registry_check_timeouts(ESPNOW_CLIENT_TIMEOUT_MS);
+    }
 
     uint32_t t = esp_now_core_now_ms();
     if (t - last_local_battery_ms >= ESPNOW_BATTERY_INTERVAL_MS) {