feat: Introduce dynamic position sizing based on market conditions and enhance trading report with grouped positions and ROI.

src/trading/paper_trader.py

@@ -43,7 +43,7 @@ class PaperTrader:
                 indent=2,
             )
 
-    def open_position(self, market_id: str, city: str, option: str, price: int, side: str, amount_usd: float = 5.0):
+    def open_position(self, market_id: str, city: str, option: str, price: int, side: str, amount_usd: float = 5.0, target_date: str = None, predicted_temp: float = None):
         """
         开仓进入模拟仓位
         """
@@ -76,6 +76,8 @@ class PaperTrader:
             "pnl_usd": 0.0,
             "pnl_pct": 0.0,
             "status": "OPEN",
+            "target_date": target_date,
+            "predicted_temp": predicted_temp,
             "opened_at": (datetime.utcnow() + timedelta(hours=8)).strftime("%Y-%m-%d %H:%M:%S")
         }
         

src/utils/notifier.py

@@ -132,7 +132,13 @@ class TelegramNotifier:
         items_text = ""
         for a in alerts:
             type_icon = "⚡" if a["type"] == "price" else "🐋"
-            buy_tag = " [🛒 模拟仓已买入]" if a.get("bought") else ""
+            # 买入标签：显示金额
+            if a.get("bought"):
+                amount = a.get("amount", 5.0)
+                confidence = a.get("confidence", "")
+                buy_tag = f" [🛒 ${amount} {confidence}]"
+            else:
+                buy_tag = ""
             items_text += f"{type_icon} <b>{a['market']}</b>: {a['msg']}{buy_tag}\n"
 
         text = (