Issue #4: Merchant Dashboard

[achneerov]

Description: Build a comprehensive dashboard for merchants to monitor transactions, manage rules, and view security insights.
IMPORTANT: This dashboard is for MERCHANTS, not internal use.
Pages:

1. Sign-In Page

• Secure merchant authentication

2. Rules Management Page

• Configure transaction rules
• Set fraud detection criteria
• Manage authentication requirements

3. Primary Dashboard (Actionable Insights)
   Key Features:

• High-Risk Customers: Display customers flagged based on mfa_events table analysis
• Geographic Visualization: Interactive map showing sign-in locations
• Per-Client MFA Success Rate: Success/failure metrics for each customer
• Fraud Attempt Monitoring: Real-time alerts for suspicious activity
• Transaction Analytics: Volume, success rates, and trends
  Visualizations:
• Geo-location map of transactions
• Success/failure rate charts
• Timeline of authentication events
• Risk score distribution
  Deliverables:
• Responsive dashboard UI
• Real-time data updates
• Export functionality for reports
• Role-based access control