Build an AI chargeback and dispute response generator web app with these features:

1. Dashboard showing active disputes with status (won, lost, pending, response needed), total dispute amount at risk, and win rate over time.

2. Shopify and Etsy OAuth integration to automatically import chargeback notifications and transaction details (order amount, customer info, tracking numbers, delivery confirmation).

3. Dispute detail view showing the chargeback reason code, card network (Visa, Mastercard, Amex), customer claim, and AI-generated response with editable text.

4. AI response generator that analyzes the dispute reason code, transaction data, and evidence to produce a structured rebuttal. Should reference specific evidence (tracking shows delivered, IP address matches billing, etc.) and follow the card network's required format.

5. Evidence library where sellers can upload and tag proof of delivery, customer signatures, communication logs, refund policies, and product photos. AI automatically selects relevant evidence for each dispute.

6. Response templates library organized by dispute reason code (fraudulent, product not received, not as described, duplicate charge, subscription cancelled) with AI-customized versions per dispute.

7. Win/loss analytics dashboard showing dispute outcomes by reason code, response length, evidence types used, and time to respond. Helps sellers identify patterns and improve win rates.

8. Automated response timeline tracker showing deadline to respond, days remaining, and alerts for urgent deadlines.

9. Team collaboration for agencies managing disputes across multiple stores, with role-based access (admin, responder, viewer).

10. Export and download responses as PDF with attached evidence for manual submission to processors that do not support API submission.