add goreleaser homebrew config and brew helper script

supplemental/scripts/install-agent-brew.sh

@@ -0,0 +1,70 @@
+#!/bin/bash
+
+PORT=45876
+KEY=""
+
+usage() {
+  printf "Beszel Agent homebrew installation script\n\n"
+  printf "Usage: ./install-agent-brew.sh [options]\n\n"
+  printf "Options: \n"
+  printf "  -k            SSH key (required, or interactive if not provided)\n"
+  printf "  -p            Port (default: $PORT)\n"
+  printf "  -h, --help    Display this help message\n"
+  exit 0
+}
+
+# Handle --help explicitly since getopts doesn't handle long options
+if [ "$1" = "--help" ]; then
+  usage
+fi
+
+# Parse arguments with getopts
+while getopts "k:p:h" opt; do
+  case ${opt} in
+  k)
+    KEY="$OPTARG"
+    ;;
+  p)
+    PORT="$OPTARG"
+    ;;
+  h)
+    usage
+    ;;
+  \?)
+    echo "Invalid option: -$OPTARG" >&2
+    usage
+    ;;
+  :)
+    echo "Option -$OPTARG requires an argument." >&2
+    usage
+    ;;
+  esac
+done
+
+# Exit if brew is not installed
+if ! command -v brew &>/dev/null; then
+  echo "Homebrew is not installed. Please install Homebrew and try again."
+  exit 1
+fi
+
+if [ -z "$KEY" ]; then
+  read -p "Enter SSH key: " KEY
+fi
+
+mkdir -p ~/.config/beszel ~/.cache/beszel
+
+echo "KEY=\"$KEY\"" >~/.config/beszel/beszel-agent.env
+echo "PORT=$PORT" >>~/.config/beszel/beszel-agent.env
+
+brew tap henrygd/beszel
+brew install beszel-agent
+brew services start beszel-agent
+
+printf "\nCheck status: brew services info beszel-agent\n"
+echo "Stop: brew services stop beszel-agent"
+echo "Start: brew services start beszel-agent"
+echo "Restart: brew services restart beszel-agent"
+echo "Upgrade: brew upgrade beszel-agent"
+echo "Uninstall: brew uninstall beszel-agent"
+echo "View logs in ~/.cache/beszel/beszel-agent.log"
+echo "Change environment variables in ~/.config/beszel/beszel-agent.env"