feat: add Windows gitbash installation support and improve binary download process

vagrant/dev/ubuntu/tmp/inst.sh

@@ -0,0 +1,37 @@
+#!/bin/bash
+
+set -e
+
+# Determine the platform
+OS=$(uname -s)
+ARCH=$(uname -m)
+
+# Map architecture
+if [ "$ARCH" == "x86_64" ]; then
+  ARCH="amd64"
+elif [[ "$ARCH" == "arm64" || "$ARCH" == "aarch64" ]]; then
+  ARCH="arm64"
+else
+  echo "Unsupported architecture: $ARCH"
+  exit 1
+fi
+
+# Map OS
+case "$OS" in
+  Linux) OS="linux" ;;
+  Darwin) OS="darwin" ;;
+  *) echo "Unsupported OS: $OS"; exit 1 ;;
+esac
+
+# Construct the download URL
+VERSION="v0.0.4"
+BINARY_URL="https://codeberg.org/headshed/infctl-cli/releases/download/$VERSION/infctl-$OS-$ARCH"
+
+# Download the binary
+echo "Downloading infctl binary for $OS-$ARCH..."
+sudo curl -s -L "$BINARY_URL" -o /usr/local/bin/infctl
+
+# Make it executable
+sudo chmod +x /usr/local/bin/infctl
+
+echo "infctl installed successfully!"