import socket

# Mock data and helper functions

WORKFLOW_SVG_DIAGRAM = """<svg width="100%" height="150" xmlns="http://www.w3.org/2000/svg">
    <defs>
        <marker id="arrow" viewBox="0 0 10 10" refX="5" refY="5" markerWidth="6" markerHeight="6" orient="auto-start-reverse">
            <path d="M 0 0 L 10 5 L 0 10 z" fill="#9ca3af"></path>
        </marker>
    </defs>
    <g fill="none" stroke="#9ca3af" stroke-width="2">
        <rect x="10" y="50" width="100" height="50" rx="5" fill="#bfdbfe"></rect>
        <text x="60" y="80" text-anchor="middle" fill="#1e3a8a" font-size="12">Step 1: Plan</text>
        <path d="M110 75 L140 75" marker-end="url(#arrow)"></path>
        <rect x="140" y="50" width="100" height="50" rx="5" fill="#f3f4f6"></rect>
        <text x="190" y="80" text-anchor="middle" fill="#4b5563" font-size="12">Step 2: Execute</text>
        <path d="M240 75 L270 75" marker-end="url(#arrow)"></path>
        <rect x="270" y="50" width="100" height="50" rx="5" fill="#f3f4f6"></rect>
        <text x="320" y="80" text-anchor="middle" fill="#4b5563" font-size="12">Step 3: Review</text>
    </g>
</svg>"""

def find_free_port():
    """
    Finds a free port on the local machine.
    """
    with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
        s.bind(("", 0))
        return s.getsockname()[1]