feat: GL kit-connect ipk + one-button wizard + web dashboard for both platforms

Synology kit-connect (SPK):
- wizard.sh — one-button Keylink IT fleet setup (auto-runs on install)
- www/index.html — dark-themed local dashboard (same design as busrouter)
- bin/serve-dashboard.sh — busybox httpd on port 8089 with CGI endpoints
- start-stop-status updated to manage dashboard alongside daemon
- INFO updated: RT2600ac + RT6600ax compatibility noted
- postinst now runs wizard --auto for first-time setup

GL kit-connect (OpenWrt ipk):
- Makefile — DEPENDS: +curl +openssh-client +tailscale
- procd init — USE_PROCD=1, respawn with 5s delay
- connect-daemon.sh — Tailscale + reverse SSH (same as Synology version)
- connect-wizard.sh — one-button setup, idempotent, UCI config
- connect-register.sh — standalone hub registration
- www/kitconnect/index.html — dark-themed dashboard with wizard button
- www/kitconnect/wizard.cgi — web-triggered wizard endpoint
- UCI config at /etc/config/kitconnect

Both platforms share: same hub protocol, same Tailscale key, same port pool.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

gl-kit-connect/files/usr/sbin/connect-register.sh

@@ -0,0 +1,58 @@
+#!/bin/sh
+# connect-register.sh — Standalone hub registration (callable from wizard or cron)
+# Usage: connect-register.sh [--force]
+# Re-registers even if already assigned when --force is given.
+
+HUB_HOST="162.243.83.36"
+HUB_PORT="8080"
+
+DEVICE_ID=$(cat /etc/busrouter/device-id 2>/dev/null || hostname | sed 's/[^a-zA-Z0-9_-]//g')
+CURRENT_PORT=$(uci -q get kitconnect.main.tunnel_remote_port 2>/dev/null || echo "0")
+
+[ "$1" = "--force" ] && CURRENT_PORT="0"
+[ "$CURRENT_PORT" != "0" ] && {
+	echo "Already registered (port ${CURRENT_PORT}). Use --force to re-register."
+	exit 0
+}
+
+echo "Registering device ${DEVICE_ID} with hub ${HUB_HOST}:${HUB_PORT}..."
+resp=$(curl -s --connect-timeout 10 "http://${HUB_HOST}:${HUB_PORT}/api/register/${DEVICE_ID}" 2>/dev/null)
+
+[ -z "$resp" ] && {
+	echo "ERROR: Hub unreachable at ${HUB_HOST}:${HUB_PORT}"
+	exit 1
+}
+
+port=$(echo "$resp" | grep -o '"tunnel_port"[[:space:]]*:[[:space:]]*[0-9]*' | grep -o '[0-9]*')
+status=$(echo "$resp" | grep -o '"status"[[:space:]]*:[[:space:]]*"[^"]*"' | cut -d'"' -f4)
+tskey=$(echo "$resp" | grep -o '"tailscale_auth_key"[[:space:]]*:[[:space:]]*"[^"]*"' | cut -d'"' -f4)
+
+echo ""
+echo "  Device:  ${DEVICE_ID}"
+echo "  Status:  ${status:-unknown}"
+echo "  Port:    ${port:-none}"
+echo ""
+
+if [ -n "$port" ] && [ "$port" != "0" ]; then
+	uci set kitconnect.main.tunnel_remote_port="$port"
+	uci commit kitconnect
+	echo "Port ${port} saved to UCI config."
+fi
+
+if [ -n "$tskey" ]; then
+	uci set kitconnect.main.tailscale_auth_key="$tskey"
+	uci commit kitconnect
+	echo "Tailscale auth key updated from hub."
+fi
+
+if [ "$status" = "new" ]; then
+	echo ""
+	echo "============================================"
+	echo "  ✓ Device registered successfully!"
+	echo "  Port ${port} assigned for reverse SSH."
+	echo "  Restart kit-connect to apply:"
+	echo "    /etc/init.d/kitconnect restart"
+	echo "============================================"
+elif [ "$status" = "existing" ]; then
+	echo "✓ Device was already registered (existing assignment confirmed)."
+fi