feat: add hackathon guidance dashboard

[sanskratishuklaa]

Hackathon Guidance Dashboard

Description

This PR introduces a comprehensive Hackathon Guidance Dashboard to help students prepare more effectively for hackathons by providing structured resources, guidance, and learning support.

Features Added

• Added dedicated Hackathon Guidance module.

• Added hackathon-related API routes and controllers.

• Created database models for:

  • Hackathon Guidance
  • Hackathon Questions
  • Hackathon Experts

• Implemented backend endpoints for managing hackathon resources.

• Organized content to help users understand hackathon workflows, preparation strategies, and commonly asked questions.

Benefits

• Helps beginners understand the hackathon ecosystem.
• Provides a centralized place for hackathon learning resources.
• Improves user engagement and platform usefulness.
• Enables future expansion such as mentorship, AI guidance, and personalized recommendations.

Technical Changes

• Added hackathon.controller.js
• Added hackathon.routes.js
• Added hackathonGuidance.model.js
• Added hackathonQuestion.model.js
• Added hackathonExpert.model.js

##Testing

• Verified API routes are working correctly.
• Confirmed successful integration with the existing backend structure.

Future Enhancements

• AI-powered hackathon recommendations.
• Mentor matching system.
• Personalized preparation roadmap.
• Hackathon opportunity tracking.

Closes #IssueNumber (if applicable)

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