Add dynamic universe and subscription controls

crates/bt-demo/src/main.rs

@@ -1,3 +1,4 @@
+use std::collections::BTreeSet;
 use std::error::Error;
 use std::fs;
 use std::io::Write;
@@ -117,6 +118,7 @@ fn main() -> Result<(), Box<dyn Error>> {
                     eprintln!("  {} {:.6}", row.symbol, row.market_cap_bn);
                 }
                 let mut debug_strategy = JqMicroCapStrategy::new(strategy_cfg.clone());
+                let debug_subscriptions = BTreeSet::new();
                 let decision = debug_strategy.on_day(&StrategyContext {
                     execution_date: date,
                     decision_date: date,
@@ -124,6 +126,8 @@ fn main() -> Result<(), Box<dyn Error>> {
                     data: &data,
                     portfolio: &PortfolioState::new(10_000_000.0),
                     open_orders: &[],
+                    dynamic_universe: None,
+                    subscriptions: &debug_subscriptions,
                     process_events: &[],
                     active_process_event: None,
                 })?;