Tailscale container hook fails on images without apt/apk/pacman

share/docker/tailscale_container_hook only detects apt-get, apk, and pacman. Anything else fails with ERROR: Detection from Package Manager failed! and the container starts without Tailscale.

Example with searxng/searxng (Void Linux base, no xbps in runtime image):

docker run --rm --entrypoint sh searxng/searxng:latest -c '
  wget -qO /tmp/hook https://raw.githubusercontent.com/unraid/webgui/master/share/docker/tailscale_container_hook
  ORG_ENTRYPOINT=/bin/true ORG_CMD= ORG_POSTARGS= sh /tmp/hook
'

Detecting Package Manager...
ERROR: Detection from Package Manager failed!
ERROR: Unraid Docker Hook script throw an error!
       Starting container without Tailscale!

I'll open a PR adding xbps-install detection plus a static-binary fallback (static jq + the existing static Tailscale tarball) for images with no supported package manager. The Tailscale tarball already works inside searxng/searxng - verified tailscaled boots and reaches the control plane - so the only missing piece is jq, which also ships as a static binary.

Start with share/docker/tailscale_container_hook and reproduce the failure using the searxng/searxng command in the issue. Trace package-manager detection and the existing static Tailscale tarball path, then verify the hook handles an image without apt-get, apk, or pacman and that tailscaled reaches the control plane.