🔧 PROGRESS: Import path fixes and type cleanup

- Fixed missing imports in backtesting and risk-data crates
- Corrected ConnectionStatus usage patterns
- Fixed ConfigManager constructor calls
- Resolved Interactive Brokers config conversions
- Added proper Decimal import patterns

NEXT: Aggressive duplicate type system elimination with parallel agents

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

risk-data/src/limits.rs

@@ -11,6 +11,7 @@ use sqlx::{PgPool, Row};
 use std::collections::HashMap;
 use tracing::{error, info, warn};
 use common::prelude::*;
+use trading_engine::types::prelude::Decimal;
 use uuid::Uuid;
 
 use crate::{RiskDataError, RiskDataResult};