Add ESP32 HTTP bring-up test script

tools/esp32_bringup_check.sh

@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+BASE_URL="${1:-http://192.168.4.1}"
+
+echo "Testing ESP32 at: $BASE_URL"
+echo
+
+echo "1. Status:"
+curl -s "$BASE_URL/status" | python3 -m json.tool
+
+echo
+echo "2. Starlink ON:"
+curl -s "$BASE_URL/relay/starlink/on" | python3 -m json.tool
+
+echo
+echo "3. Starlink OFF:"
+curl -s "$BASE_URL/relay/starlink/off" | python3 -m json.tool
+
+echo
+echo "4. Fridge ON:"
+curl -s "$BASE_URL/relay/fridge/on" | python3 -m json.tool
+
+echo
+echo "5. Fridge OFF:"
+curl -s "$BASE_URL/relay/fridge/off" | python3 -m json.tool
+
+echo
+echo "ESP32 HTTP bring-up test complete."