Allow users to export their spending data in various formats (CSV, JSON, PDF). Include date range filtering and format selection.

Features

• Export spending data in multiple formats:
  • CSV for spreadsheet analysis
  • JSON for data portability
  • PDF for reports
• Date range filtering
• Format selection UI

Acceptance Criteria

• User can select export format (CSV, JSON, PDF)
• User can filter by date range
• Export includes all relevant spending data
• Downloaded files are properly formatted
• Export functionality is accessible from main interface

Labels

• enhancement
• feature