feat: paper positions show real-time price + unrealized PnL (R + USDT)

backend/main.py

@@ -562,13 +562,46 @@ async def paper_summary(user: dict = Depends(get_current_user)):
 
 @app.get("/api/paper/positions")
 async def paper_positions(user: dict = Depends(get_current_user)):
-    """当前活跃持仓"""
+    """当前活跃持仓（含实时价格和浮动盈亏）"""
     rows = await async_fetch(
         "SELECT id, symbol, direction, score, tier, entry_price, entry_ts, "
         "tp1_price, tp2_price, sl_price, tp1_hit, status, atr_at_entry "
         "FROM paper_trades WHERE status IN ('active','tp1_hit') ORDER BY entry_ts DESC"
     )
-    return {"data": rows}
+    # 获取实时价格
+    prices = {}
+    for r in rows:
+        sym = r["symbol"]
+        if sym not in prices:
+            try:
+                latest = await async_fetchrow(
+                    "SELECT price FROM signal_indicators WHERE symbol=$1 ORDER BY ts DESC LIMIT 1", sym
+                )
+                prices[sym] = latest["price"] if latest else 0
+            except Exception:
+                prices[sym] = 0
+
+    result = []
+    for r in rows:
+        d = dict(r)
+        current_price = prices.get(r["symbol"], 0)
+        d["current_price"] = current_price
+        # 浮动盈亏(R)
+        entry = r["entry_price"]
+        atr = r["atr_at_entry"] or 1
+        risk_distance = 2.0 * 0.7 * atr
+        if risk_distance > 0 and entry > 0:
+            if r["direction"] == "LONG":
+                d["unrealized_pnl_r"] = round((current_price - entry) / risk_distance, 2)
+            else:
+                d["unrealized_pnl_r"] = round((entry - current_price) / risk_distance, 2)
+            # 浮动盈亏(USDT) — 假设1R = risk_per_trade
+            d["unrealized_pnl_usdt"] = round(d["unrealized_pnl_r"] * 200, 2)  # 2% of 10000
+        else:
+            d["unrealized_pnl_r"] = 0
+            d["unrealized_pnl_usdt"] = 0
+        result.append(d)
+    return {"data": result}
 
 
 @app.get("/api/paper/trades")

frontend/app/paper/page.tsx

@@ -136,10 +136,19 @@ function ActivePositions() {
                   </span>
                   <span className="text-[10px] text-slate-400">评分{p.score} · {p.tier === "heavy" ? "加仓" : p.tier === "standard" ? "标准" : "轻仓"}</span>
                 </div>
-                <span className="text-[10px] text-slate-400">{holdMin}分钟</span>
+                <div className="flex items-center gap-2">
+                  <span className={`font-mono text-sm font-bold ${(p.unrealized_pnl_r ?? 0) >= 0 ? "text-emerald-600" : "text-red-500"}`}>
+                    {(p.unrealized_pnl_r ?? 0) >= 0 ? "+" : ""}{(p.unrealized_pnl_r ?? 0).toFixed(2)}R
+                  </span>
+                  <span className={`font-mono text-[10px] ${(p.unrealized_pnl_usdt ?? 0) >= 0 ? "text-emerald-500" : "text-red-400"}`}>
+                    ({(p.unrealized_pnl_usdt ?? 0) >= 0 ? "+" : ""}${(p.unrealized_pnl_usdt ?? 0).toFixed(0)})
+                  </span>
+                  <span className="text-[10px] text-slate-400">{holdMin}m</span>
+                </div>
               </div>
               <div className="flex gap-3 mt-1 text-[10px] font-mono text-slate-600">
                 <span>入场: ${fmtPrice(p.entry_price)}</span>
+                <span className="text-blue-600">现价: ${p.current_price ? fmtPrice(p.current_price) : "-"}</span>
                 <span className="text-emerald-600">TP1: ${fmtPrice(p.tp1_price)}{p.tp1_hit ? " ✅" : ""}</span>
                 <span className="text-emerald-600">TP2: ${fmtPrice(p.tp2_price)}</span>
                 <span className="text-red-500">SL: ${fmtPrice(p.sl_price)}</span>