feat: Add Fraud Detection MCP Server

[niksacdev]

Description

Implement a Fraud Detection MCP server to identify potential fraudulent applications across multiple agents.

Acceptance Criteria

• Create fraud detection MCP server with pattern recognition
• Integrate with Intake, Credit, and Income agents
• Add configurable risk thresholds
• Implement fraud scoring system
• Add comprehensive tests

Technical Details

• Check for suspicious patterns in application data
• Cross-reference with known fraud indicators
• Implement velocity checks (multiple applications from same source)
• Return fraud risk score and specific concerns

Priority

High - Critical for production deployment

Labels

• enhancement
• security (when label is created)