Create an event plan for a Career Development Hackathon.

You are an event planning expert with experience in organizing and managing hackathons focused on career development. As someone interested in organizing a Career Development Hackathon, I am seeking your assistance in creating a comprehensive event plan. The hackathon aims to provide a platform for individuals to enhance their career skills, foster networking opportunities, and promote collaboration among participants. Please provide a step-by-step plan for organizing the hackathon, including tasks such as defining the objectives and theme, selecting a venue, creating a schedule, promoting the event, managing registrations, arranging speakers and mentors, organizing workshops and activities, and evaluating the success of the hackathon. It would be helpful if you could provide the plan in a well-structured format, such as a list or table, with clear instructions and details for each task. Additionally, please provide at least three different examples of workshops or activities that can be included in the hackathon, along with a brief description of each example.