fix: 四所统计日历显示每日盈亏与交易笔数

日历格子重置实例全局 button 样式，日期格展示 +X.XU 与 N 笔，标题栏汇总当月盈亏与总笔数。

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

static/trade_stats_calendar.js

@@ -18,6 +18,29 @@
     return y + "年" + m + "月";
   }
 
+  function formatCalPnl(pnl) {
+    var n = Number(pnl);
+    if (!Number.isFinite(n)) n = 0;
+    return (n >= 0 ? "+" : "") + n.toFixed(1) + "U";
+  }
+
+  function dayHasTrade(info) {
+    if (!info) return false;
+    var cnt = Number(info.open_count);
+    if (Number.isFinite(cnt) && cnt > 0) return true;
+    var pnl = Number(info.pnl_total);
+    return Number.isFinite(pnl) && Math.abs(pnl) > 0.0001;
+  }
+
+  function dayOpenCount(info) {
+    var cnt = Number(info && info.open_count);
+    return Number.isFinite(cnt) && cnt > 0 ? cnt : 0;
+  }
+
+  function dayPnl(info) {
+    return Number(info && info.pnl_total) || 0;
+  }
+
   function TradeStatsCalendar(config) {
     this.gridEl = config.gridEl;
     this.titleEl = config.titleEl;
@@ -46,6 +69,8 @@
     this.year = config.year || 0;
     this.month = config.month || 0;
     this.days = {};
+    this.monthPnlTotal = 0;
+    this.monthOpenCount = 0;
     this._navBound = false;
     this._bindNav();
   }
@@ -72,7 +97,12 @@
   TradeStatsCalendar.prototype.render = function () {
     if (!this.gridEl || !this.titleEl) return;
     if (this.year <= 0 || this.month <= 0) this.ensureMonth(new Date());
-    this.titleEl.textContent = monthLabel(this.year, this.month);
+    var title = monthLabel(this.year, this.month);
+    if (this.monthOpenCount > 0) {
+      title +=
+        " · " + formatCalPnl(this.monthPnlTotal) + " · " + this.monthOpenCount + "笔";
+    }
+    this.titleEl.textContent = title;
     var first = new Date(this.year, this.month - 1, 1);
     var lastDay = new Date(this.year, this.month, 0).getDate();
     var startWd = first.getDay();
@@ -94,10 +124,10 @@
         "-" +
         String(d).padStart(2, "0");
       var info = this.days[dayStr];
-      var hasTrade = info && info.open_count > 0;
+      var hasTrade = dayHasTrade(info);
       var sick = this.showSick && info && info.has_sick;
-      var pnl = hasTrade ? Number(info.pnl_total) : null;
-      var cnt = hasTrade ? info.open_count : 0;
+      var pnl = hasTrade ? dayPnl(info) : null;
+      var cnt = hasTrade ? dayOpenCount(info) : 0;
       var cls =
         "trade-cal-cell" +
         (hasTrade ? " has-trade" : "") +
@@ -110,10 +140,9 @@
             : "");
       var body = '<span class="trade-cal-day-num">' + d + "</span>";
       if (hasTrade) {
-        var pnlTxt = (pnl >= 0 ? "+" : "") + pnl.toFixed(1);
         body +=
           '<span class="trade-cal-pnl">' +
-          esc(pnlTxt) +
+          esc(formatCalPnl(pnl)) +
           "</span>" +
           '<span class="trade-cal-cnt">' +
           cnt +
@@ -168,6 +197,18 @@
         data = await resp.json();
       }
       this.days = this.parseResponse(data) || {};
+      this.monthPnlTotal = Number(data && data.month_pnl_total) || 0;
+      this.monthOpenCount = Number(data && data.month_open_count) || 0;
+      if (!this.monthOpenCount) {
+        var self = this;
+        Object.keys(this.days).forEach(function (k) {
+          if (dayHasTrade(self.days[k])) {
+            self.monthOpenCount += dayOpenCount(self.days[k]);
+            self.monthPnlTotal += dayPnl(self.days[k]);
+          }
+        });
+        this.monthPnlTotal = Math.round(this.monthPnlTotal * 10000) / 10000;
+      }
       this.render();
       if (this.onMonthChange) this.onMonthChange(this.year, this.month, this.days);
     } catch (e) {