数据统计改为后台热缓存与 SSE，曲线放大置底并支持选机，对比增加模式与收益率。

Co-authored-by: Cursor <cursoragent@cursor.com>

lib/stats_agg_lib.py

@@ -36,14 +36,20 @@ def normalize_window(raw: Any) -> str:
     return w if w in ("today", "7d", "30d", "all") else "7d"
 
 
-def build_stats_summary(window: str = "7d") -> dict[str, Any]:
+def build_stats_summary(
+    window: str = "7d",
+    *,
+    snaps: list[dict[str, Any]] | None = None,
+) -> dict[str, Any]:
     w = normalize_window(window)
     # 实时状态(余额/权利金/浮盈)来自快照;窗口 KPI 来自各机 stats
-    snaps = pull_all_enabled()
-    try:
-        record_cash_samples_from_overview(snaps)
-    except Exception:
-        pass
+    # snaps 可由热缓存传入,避免统计页再现场重复拉全机
+    if snaps is None:
+        snaps = pull_all_enabled()
+        try:
+            record_cash_samples_from_overview(snaps)
+        except Exception:
+            pass
     stats_rows = pull_all_stats(w)
     stats_by_id = {r.get("id"): r for r in stats_rows}
 
@@ -83,6 +89,12 @@ def build_stats_summary(window: str = "7d") -> dict[str, Any]:
         win_rate = _safe_float(stats.get("win_rate"))
         avg_hold = _safe_float(stats.get("avg_hold_sec"))
         online = bool(snap.get("online"))
+        mode = ((body.get("instance") or {}) if isinstance(body.get("instance"), dict) else {}).get(
+            "mode"
+        )
+        return_pct = None
+        if online and stats.get("ok") and net is not None and cash is not None and cash > 0:
+            return_pct = round(float(net) / float(cash) * 100.0, 2)
         if online:
             online_n += 1
         if cash is not None:
@@ -110,9 +122,7 @@ def build_stats_summary(window: str = "7d") -> dict[str, Any]:
                 "name": snap.get("name"),
                 "online": online,
                 "error": snap.get("error") or st.get("error") or "",
-                "mode": ((body.get("instance") or {}) if isinstance(body.get("instance"), dict) else {}).get(
-                    "mode"
-                ),
+                "mode": mode,
                 "cash_usdt": cash,
                 "premium_usdt": paid,
                 "ratio_pct": ratio,
@@ -123,6 +133,7 @@ def build_stats_summary(window: str = "7d") -> dict[str, Any]:
                 "loss_count": losses if online and stats.get("ok") else None,
                 "win_rate": win_rate if online and stats.get("ok") else None,
                 "net_realized_pnl": net if online and stats.get("ok") else None,
+                "return_rate_pct": return_pct,
                 "total_profit": profit if online and stats.get("ok") else None,
                 "total_loss": loss if online and stats.get("ok") else None,
                 "avg_hold_sec": avg_hold if online and stats.get("ok") else None,
@@ -153,12 +164,7 @@ def build_stats_summary(window: str = "7d") -> dict[str, Any]:
 
 
 def build_stats_curve(range_key: str = "7d") -> dict[str, Any]:
-    # 顺手采一笔,让打开页面时也有点
-    try:
-        snaps = pull_all_enabled()
-        record_cash_samples_from_overview(snaps)
-    except Exception:
-        pass
+    # 曲线只读本地采样库;余额采样由总览常驻 pull 负责
     data = query_cash_series(range_key=range_key)
     data["ok"] = True
     return data