added lei to isin mapping

src/corporate/aggregation.rs

@@ -16,8 +16,8 @@ struct DayData {
 }
 
 /// Aggregate price data from multiple exchanges, converting all to USD
-pub async fn aggregate_best_price_data(isin: &str) -> anyhow::Result<()> {
-    let company_dir = get_company_dir(isin);
+pub async fn aggregate_best_price_data(lei: &str) -> anyhow::Result<()> {
+    let company_dir = get_company_dir(lei);
 
     for timeframe in ["daily", "5min"].iter() {
         let source_dir = company_dir.join(timeframe);
@@ -136,7 +136,7 @@ pub async fn aggregate_best_price_data(isin: &str) -> anyhow::Result<()> {
                 .unwrap_or_else(|| "unknown".to_string());
 
             aggregated.push(CompanyPrice {
-                ticker: format!("{}@agg", isin), // Mark as aggregated
+                ticker: format!("{lei}@agg"), // Mark as aggregated
                 date,
                 time,
                 open: data.open,
@@ -159,7 +159,7 @@ pub async fn aggregate_best_price_data(isin: &str) -> anyhow::Result<()> {
         
         // Save aggregation metadata
         let meta = AggregationMetadata {
-            isin: isin.to_string(),
+            lei: lei.to_string(),  // ← CHANGE THIS
             timeframe: timeframe.to_string(),
             sources: sources_used.into_iter().collect(),
             total_bars: aggregated.len(),
@@ -169,7 +169,7 @@ pub async fn aggregate_best_price_data(isin: &str) -> anyhow::Result<()> {
             ),
             aggregated_at: chrono::Local::now().format("%Y-%m-%d %H:%M:%S").to_string(),
         };
-        
+                
         let meta_path = agg_dir.join("metadata.json");
         fs::write(&meta_path, serde_json::to_string_pretty(&meta)?).await?;
         
@@ -185,7 +185,7 @@ pub async fn aggregate_best_price_data(isin: &str) -> anyhow::Result<()> {
 
 #[derive(Debug, serde::Serialize, serde::Deserialize)]
 struct AggregationMetadata {
-    isin: String,
+    lei: String,
     timeframe: String,
     sources: Vec<String>,
     total_bars: usize,