Add Comprehensive Error Handling to Data Collection Scripts

[Suyog241005]

Problem

The initial-data collection scripts currently lack proper error handling making them vulnerable to:

• Silent failures during API calls
• File system errors during CSV operations
• Unclear error messages when processes fail

Proposed Solution

Add comprehensive error handling to:

GitHub API calls (fetchRepoCreationDate, fetchRepoTopics, etc.)
File operations (DataRecorder class methods)
Main execution flow (runMain function)