fix: initial balance calculation and UI improvements

- Fix initial balance using available_balance instead of total_equity
- Fix WSMonitor nil pointer by starting market monitor before loading traders
- Add strategy name display on traders list and dashboard pages
- Various position sync and trading improvements

scripts/migrate_encryption.go

@@ -15,7 +15,7 @@ func main() {
 	log.Println("🔄 Starting database migration to encrypted format...")
 
 	// 1. Check database file
-	dbPath := "data.db"
+	dbPath := "data/data.db"
 	if len(os.Args) > 1 {
 		dbPath = os.Args[1]
 	}