Experimental Report Generator

New data, charts, and calculations for presentation and future AB testing:

• ✓ Production History (reorganized with stacked bar chart)
• ✓ Loan Breakdowns (Top ZIP, Risk %, Loan Size Distribution)
• ✓ Lost Transactions + Competitor Breakdown
• ✓ Potential Refinance + Transaction Map
• ✓ Potential Purchase & Active Buyers (placeholders)

View-only report. No database writes. Same flow as testing.