Cleanup formatting and whitespace

Minor stylistic cleanup across multiple files: reflowed assignments and conditionals to single lines, removed extra blank lines and trailing whitespace, and compacted chained calls (transaction_handler.rs, order_book/engine.rs, order_book/position_tracker.rs, websocket/handlers.rs, websocket/server.rs). No behavioral changes—purely formatting to improve readability.

Author: iamnamananand996

src/handlers/transaction_handler.rs

@@ -75,8 +75,7 @@ pub async fn deposit_money(
 
     // Update user balance
     let mut user_active_model: users::ActiveModel = user.into();
-    user_active_model.wallet_balance =
-        Set(RustDecimal::try_from(balance_after).unwrap());
+    user_active_model.wallet_balance = Set(RustDecimal::try_from(balance_after).unwrap());
     user_active_model.updated_at = Set(chrono::Utc::now().naive_utc());
 
     let _updated_user = user_active_model.update(&txn).await.map_err(|e| {
@@ -219,8 +218,7 @@ pub async fn withdraw_money(
 
     // Update user balance
     let mut user_active_model: users::ActiveModel = user.into();
-    user_active_model.wallet_balance =
-        Set(RustDecimal::try_from(balance_after).unwrap());
+    user_active_model.wallet_balance = Set(RustDecimal::try_from(balance_after).unwrap());
     user_active_model.updated_at = Set(chrono::Utc::now().naive_utc());
 
     let _updated_user = user_active_model.update(&txn).await.map_err(|e| {

src/order_book/engine.rs

@@ -48,11 +48,10 @@ impl OrderBookEngine {
         }
 
         // For Fill-Or-Kill orders, check if we can fill the entire order
-        if order.time_in_force == TimeInForce::FOK
-            && !self.can_fill_entire_order(&order) {
-                order.reject();
-                return Ok(vec![]);
-            }
+        if order.time_in_force == TimeInForce::FOK && !self.can_fill_entire_order(&order) {
+            order.reject();
+            return Ok(vec![]);
+        }
 
         // Market orders get the best available price
         let trades = if order.order_type == OrderType::Market {

src/order_book/position_tracker.rs

@@ -210,10 +210,7 @@ impl PositionTracker {
 
         let mut grouped: HashMap<i32, Vec<UserPosition>> = HashMap::new();
         for position in positions {
-            grouped
-                .entry(position.event_id)
-                .or_default()
-                .push(position);
+            grouped.entry(position.event_id).or_default().push(position);
         }
 
         Ok(grouped)

src/websocket/handlers.rs

@@ -394,7 +394,6 @@ impl WebSocketHandlers {
     pub async fn fetch_and_broadcast_portfolio(&self, user_id: i32) {
         // Import position tracker
         use crate::order_book::position_tracker::PositionTracker;
-        
 
         // Get user data
         let user = match users::Entity::find_by_id(user_id)
@@ -633,7 +632,6 @@ impl WebSocketHandlers {
     }
 }
 
-
 impl Default for PaginationQuery {
     fn default() -> Self {
         Self {

src/websocket/server.rs

@@ -27,7 +27,6 @@ pub struct WebSocketServer {
     redis_pool: Option<web::Data<Pool>>,
 }
 
-
 impl WebSocketServer {
     pub fn with_handlers(db: web::Data<DatabaseConnection>, redis_pool: web::Data<Pool>) -> Self {
         Self {