CSV Export Functionality

[Andrew-Stevic]

Description

Implement CSV export for data analysis in Excel/PowerBI.

Tasks

• Create CsvReportGenerator class
• Design CSV schema for findings
• Implement CsvHelper integration
• Add proper escaping (prevent CSV injection)
• Support multiple worksheets (if Excel)
• Write tests

Deliverables

• CSV export of all findings
• Excel-compatible format
• Secure output (no injection vulnerabilities)

Target: 1/26/26