A/H跨市场去重：药明康德不再推H股

药明康德(02359) timing_signal=买入、多头排列，但Dad已持有
药明康德A股(603259)。同股同权，H折CNY还贵7.4%。

新增：stale_push_wlin在推荐前检查portfolio中是否有
同名不同代码的持仓。有则跳过推荐。

测试：之前推H股，现在静默（0可操作→无输出）

data/price_history.json

@@ -52,7 +52,7 @@
       "date": "2026-06-24",
       "high": 116.94,
       "low": 105.76,
-      "close": 115.02
+      "close": 115.14
     }
   ],
   "002594": [
@@ -108,7 +108,7 @@
       "date": "2026-06-24",
       "high": 88.32,
       "low": 82.78,
-      "close": 83.38
+      "close": 83.3
     }
   ],
   "00700": [
@@ -444,7 +444,7 @@
       "date": "2026-06-24",
       "high": 13.47,
       "low": 12.55,
-      "close": 13.12
+      "close": 13.15
     }
   ],
   "01088": [
@@ -948,7 +948,7 @@
       "date": "2026-06-24",
       "high": 30.56,
       "low": 28.06,
-      "close": 28.36
+      "close": 28.38
     }
   ],
   "06160": [
@@ -1060,7 +1060,7 @@
       "date": "2026-06-24",
       "high": 305.0,
       "low": 251.2,
-      "close": 264.6
+      "close": 265.0
     }
   ],
   "09868": [
@@ -1116,7 +1116,7 @@
       "date": "2026-06-24",
       "high": 52.3,
       "low": 48.82,
-      "close": 49.76
+      "close": 49.5
     }
   ],
   "09988": [
@@ -1172,7 +1172,7 @@
       "date": "2026-06-24",
       "high": 103.4,
       "low": 97.65,
-      "close": 99.85
+      "close": 99.65
     }
   ],
   "300035": [
@@ -1228,7 +1228,7 @@
       "date": "2026-06-24",
       "high": 17.1,
       "low": 15.96,
-      "close": 16.04
+      "close": 16.03
     }
   ],
   "300124": [
@@ -1284,7 +1284,7 @@
       "date": "2026-06-24",
       "high": 68.8,
       "low": 65.74,
-      "close": 66.47
+      "close": 66.31
     }
   ],
   "300548": [
@@ -1756,7 +1756,7 @@
       "date": "2026-06-24",
       "high": 309.6,
       "low": 275.86,
-      "close": 281.74
+      "close": 280.22
     }
   ],
   "300750": [
@@ -1812,7 +1812,7 @@
       "date": "2026-06-24",
       "high": 414.04,
       "low": 386.66,
-      "close": 395.01
+      "close": 395.79
     }
   ],
   "518880": [
@@ -1868,7 +1868,7 @@
       "date": "2026-06-24",
       "high": 8.674,
       "low": 8.426,
-      "close": 8.514
+      "close": 8.519
     }
   ],
   "600036": [
@@ -2148,7 +2148,7 @@
       "date": "2026-06-24",
       "high": 30.0,
       "low": 27.33,
-      "close": 27.54
+      "close": 27.56
     }
   ],
   "688411": [
@@ -2204,7 +2204,7 @@
       "date": "2026-06-24",
       "high": 285.98,
       "low": 261.8,
-      "close": 267.08
+      "close": 266.45
     }
   ],
   "688639": [
@@ -2260,7 +2260,7 @@
       "date": "2026-06-24",
       "high": 22.47,
       "low": 20.99,
-      "close": 21.4
+      "close": 21.41
     }
   ],
   "688795": [
@@ -2316,7 +2316,7 @@
       "date": "2026-06-24",
       "high": 745.2,
       "low": 660.01,
-      "close": 704.28
+      "close": 704.8
     }
   ],
   "688802": [
@@ -2372,7 +2372,7 @@
       "date": "2026-06-24",
       "high": 808.0,
       "low": 726.1,
-      "close": 768.99
+      "close": 768.51
     }
   ],
   "688981": [
@@ -2428,7 +2428,7 @@
       "date": "2026-06-24",
       "high": 156.35,
       "low": 139.6,
-      "close": 151.7
+      "close": 151.36
     }
   ],
   "000711": [
@@ -2466,7 +2466,7 @@
       "date": "2026-06-24",
       "high": 5.38,
       "low": 4.86,
-      "close": 5.05
+      "close": 5.04
     }
   ],
   "688630": [
@@ -2496,9 +2496,9 @@
     },
     {
       "date": "2026-06-24",
-      "high": 512.86,
+      "high": 515.85,
       "low": 455.55,
-      "close": 510.39
+      "close": 511.54
     }
   ],
   "300690": [
@@ -2570,7 +2570,7 @@
       "date": "2026-06-24",
       "high": 1395.0,
       "low": 1282.15,
-      "close": 1304.0
+      "close": 1305.56
     }
   ],
   "600519": [
@@ -2590,7 +2590,7 @@
       "date": "2026-06-24",
       "high": 1264.0,
       "low": 1207.51,
-      "close": 1207.72
+      "close": 1207.75
     }
   ],
   "601318": [
@@ -2610,7 +2610,7 @@
       "date": "2026-06-24",
       "high": 52.43,
       "low": 49.03,
-      "close": 49.09
+      "close": 49.12
     }
   ],
   "002171": [