feat(mse): commission-aware PnL on open positions

- FilledOrder gains commission_usdt field
- parse_filled_order: sums fills[] commission as rate × qty × price in USDT
- OpenPosition gains buy_commission_usdt; DB migration via ALTER TABLE ADD COLUMN
- runner.rs writes buy_commission_usdt from buy_order.commission_usdt
- bot.html PnL = gross_pnl - buy_commission_pct - estimated_sell_commission_pct

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/binance/client.rs

@@ -562,6 +562,21 @@ fn parse_filled_order(data: &Value, side: OrderSide) -> Result<FilledOrder> {
         }
     };
 
+    // fills'den komisyonu qty * fill_price * rate olarak USDT'ye çevir
+    let commission_usdt = data["fills"]
+        .as_array()
+        .map(|fills| {
+            fills.iter().fold(0.0f64, |acc, f| {
+                let qty: f64 = f["qty"].as_str().unwrap_or("0").parse().unwrap_or(0.0);
+                let fill_price: f64 = f["price"].as_str().unwrap_or("0").parse().unwrap_or(0.0);
+                let commission: f64 = f["commission"].as_str().unwrap_or("0").parse().unwrap_or(0.0);
+                // komisyon oranı = commission / qty, USDT karşılığı = oran × qty × fiyat
+                let rate = if qty > 0.0 { commission / qty } else { 0.001 };
+                acc + rate * qty * fill_price
+            })
+        })
+        .unwrap_or(0.0);
+
     Ok(FilledOrder {
         order_id: data["orderId"].as_u64().unwrap_or(0),
         symbol: data["symbol"].as_str().unwrap_or("").to_string(),
@@ -569,5 +584,6 @@ fn parse_filled_order(data: &Value, side: OrderSide) -> Result<FilledOrder> {
         price,
         quantity: executed_qty,
         timestamp: data["transactTime"].as_i64().unwrap_or(0),
+        commission_usdt,
     })
 }

src/binance/models.rs

@@ -37,6 +37,7 @@ pub struct FilledOrder {
     pub price: f64,
     pub quantity: f64,
     pub timestamp: i64,
+    pub commission_usdt: f64,
 }
 
 #[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]

src/bot/runner.rs

@@ -151,6 +151,7 @@ impl BotRunner {
                                             quantity:            result.buy_order.quantity,
                                             profit_percent:      config.profit_percent,
                                             opened_at:           result.timestamp,
+                                            buy_commission_usdt: result.buy_order.commission_usdt,
                                         };
 
                                         {

src/storage/db.rs

@@ -85,6 +85,10 @@ impl Database {
              );
              CREATE INDEX IF NOT EXISTS idx_bot_logs_bot_id ON bot_logs(bot_id, created_at DESC);",
         )?;
+        // migration: mevcut DB'ye buy_commission_usdt sütunu ekle
+        conn.execute_batch(
+            "ALTER TABLE open_positions ADD COLUMN buy_commission_usdt REAL NOT NULL DEFAULT 0;",
+        ).ok();
         Ok(Self { conn })
     }
 
@@ -188,12 +192,12 @@ impl Database {
     pub fn insert_position(&self, p: &OpenPosition) -> SqlResult<()> {
         self.conn.execute(
             "INSERT OR REPLACE INTO open_positions
-             (order_id, bot_id, bot_name, symbol, buy_price, sell_target, quantity, profit_percent, opened_at)
+             (order_id, bot_id, bot_name, symbol, buy_price, sell_target, quantity, profit_percent, opened_at, buy_commission_usdt)
-             VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9)",
+             VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9, ?10)",
             params![
                 p.order_id as i64, p.bot_id, p.bot_name, p.symbol,
                 p.buy_price, p.sell_target, p.quantity,
-                p.profit_percent, p.opened_at
+                p.profit_percent, p.opened_at, p.buy_commission_usdt
             ],
         )?;
         Ok(())
@@ -201,7 +205,7 @@ impl Database {
 
     pub fn get_positions(&self) -> SqlResult<Vec<OpenPosition>> {
         let mut stmt = self.conn.prepare(
-            "SELECT order_id, bot_id, bot_name, symbol, buy_price, sell_target, quantity, profit_percent, opened_at
+            "SELECT order_id, bot_id, bot_name, symbol, buy_price, sell_target, quantity, profit_percent, opened_at, buy_commission_usdt
              FROM open_positions ORDER BY opened_at DESC",
         )?;
         let rows = stmt.query_map([], |row| {
@@ -216,6 +220,7 @@ impl Database {
                 quantity:           row.get(6)?,
                 profit_percent:     row.get(7)?,
                 opened_at:          row.get(8)?,
+                buy_commission_usdt: row.get(9)?,
             })
         })?;
         rows.collect()
@@ -338,7 +343,7 @@ impl Database {
 
     pub fn get_positions_by_bot(&self, bot_id: &str) -> SqlResult<Vec<crate::storage::positions::OpenPosition>> {
         let mut stmt = self.conn.prepare(
-            "SELECT order_id, bot_id, bot_name, symbol, buy_price, sell_target, quantity, profit_percent, opened_at
+            "SELECT order_id, bot_id, bot_name, symbol, buy_price, sell_target, quantity, profit_percent, opened_at, buy_commission_usdt
              FROM open_positions WHERE bot_id = ?1 ORDER BY opened_at DESC",
         )?;
         let rows = stmt.query_map(params![bot_id], |row| {
@@ -353,6 +358,7 @@ impl Database {
                 quantity:            row.get(6)?,
                 profit_percent:      row.get(7)?,
                 opened_at:           row.get(8)?,
+                buy_commission_usdt: row.get(9)?,
             })
         })?;
         rows.collect()

src/storage/positions.rs

@@ -12,4 +12,5 @@ pub struct OpenPosition {
     pub quantity: f64,
     pub profit_percent: f64,
     pub opened_at: i64, // ms
+    pub buy_commission_usdt: f64,
 }

src/web/bot.html

@@ -621,9 +621,17 @@ function renderOpenTable() {
     return;
   }
   tbody.innerHTML = openPositionsCache.map(p => {
-    const pnl = currentPrice > 0
+    let pnl = null;
-      ? ((currentPrice - p.buy_price) / p.buy_price * 100)
+    if (currentPrice > 0) {
-      : null;
+      const grossPnl = (currentPrice - p.buy_price) / p.buy_price * 100;
+      // alış komisyonu % olarak: buy_commission_usdt / (buy_price * quantity) * 100
+      const buyCommissionPct = p.buy_commission_usdt > 0
+        ? (p.buy_commission_usdt / (p.buy_price * p.quantity) * 100)
+        : 0.1;
+      // satış komisyonu tahmini: aynı oran üzerinden (currentPrice × quantity için)
+      const sellCommissionPct = buyCommissionPct;
+      pnl = grossPnl - buyCommissionPct - sellCommissionPct;
+    }
     const pnlHtml = pnl !== null
       ? `<span class="${pnl >= 0 ? 'c-green' : 'c-red'}">${pnl >= 0 ? '+' : ''}${pnl.toFixed(2)}%</span>`
       : '<span class="c-muted">—</span>';