feat(codespaces): .devcontainer + auto-setup & auto-run (Step 10) + rapikan README

.devcontainer/start.sh

@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+# Jalankan OPEN-ISP otomatis saat Codespace aktif
+cd "$(dirname "$0")/.."
+if pgrep -f "node app-customer.js" >/dev/null 2>&1; then
+  echo "==> [OPEN-ISP] Aplikasi sudah berjalan."
+  exit 0
+fi
+echo "==> [OPEN-ISP] Menjalankan aplikasi di background (port 3001)…"
+nohup node app-customer.js > /tmp/open-isp.log 2>&1 &
+sleep 3
+echo "==> [OPEN-ISP] Log: /tmp/open-isp.log"