币种标记标准化 + data-pipeline诊断文档

stale_detector: HK股价格输出加(HKD)标记，防止LLM混读CNY/HKD
per_stock_reassess: 写回decisions.json的HK股加上currency: HKD
docs/data-pipeline-diagnosis.md: 完整数据管道重构需求文档

避免建滔积层板CNY/HKD错配类问题复发

data/portfolio.json

@@ -32,8 +32,8 @@
         "entry_zone": "1220.0~1256.27",
         "take_profit_zone": "0~1328.37"
       },
-      "price": 1272.71,
-      "change_pct": 4.32
+      "price": 1273.99,
+      "change_pct": 4.43
     },
     {
       "code": "06869",
@@ -67,8 +67,8 @@
         "entry_zone": "239.4~251.37",
         "take_profit_zone": "0~309.76"
       },
-      "price": 219.78,
-      "change_pct": 5.76
+      "price": 219.43,
+      "change_pct": 5.6
     },
     {
       "code": "01478",
@@ -102,8 +102,8 @@
         "entry_zone": "6.2~7.23",
         "take_profit_zone": "0~7.44"
       },
-      "price": 6.01,
-      "change_pct": 0.29
+      "price": 6.0,
+      "change_pct": 0.14
     },
     {
       "code": "601899",
@@ -137,8 +137,8 @@
         "entry_zone": "22.48~26.23",
         "take_profit_zone": "0~24.6"
       },
-      "price": 24.98,
-      "change_pct": -3.14
+      "price": 24.97,
+      "change_pct": -3.18
     },
     {
       "code": "688411",
@@ -172,8 +172,8 @@
         "entry_zone": "278.2~292.11",
         "take_profit_zone": "0~303.96"
       },
-      "price": 283.32,
-      "change_pct": -0.94
+      "price": 283.06,
+      "change_pct": -1.03
     },
     {
       "code": "688981",
@@ -207,8 +207,8 @@
         "entry_zone": "151.0~158.55",
         "take_profit_zone": "0~173.58"
       },
-      "price": 159.99,
-      "change_pct": 5.95
+      "price": 160.04,
+      "change_pct": 5.99
     },
     {
       "code": "01888",
@@ -242,8 +242,8 @@
         "entry_zone": "96.3~101.11",
         "take_profit_zone": "0~111.71"
       },
-      "price": 86.45,
-      "change_pct": 3.43
+      "price": 86.97,
+      "change_pct": 4.05
     },
     {
       "code": "688639",
@@ -277,8 +277,8 @@
         "entry_zone": "14.37~16.77",
         "take_profit_zone": "0~18.35"
       },
-      "price": 15.91,
-      "change_pct": -4.33
+      "price": 15.94,
+      "change_pct": -4.15
     },
     {
       "code": "300750",
@@ -312,8 +312,8 @@
         "entry_zone": "386.75~394.56",
         "take_profit_zone": "0~409.12"
       },
-      "price": 392.86,
-      "change_pct": 0.13
+      "price": 392.8,
+      "change_pct": 0.11
     },
     {
       "code": "01211",
@@ -347,8 +347,8 @@
         "entry_zone": "64.89~75.7",
         "take_profit_zone": "0~71.43"
       },
-      "price": 62.58,
-      "change_pct": -1.1
+      "price": 62.63,
+      "change_pct": -1.03
     },
     {
       "code": "02202",
@@ -417,8 +417,8 @@
         "entry_zone": "416.13~423.07",
         "take_profit_zone": "0~439.59"
       },
-      "price": 365.6,
-      "change_pct": 0.24
+      "price": 365.25,
+      "change_pct": 0.14
     },
     {
       "code": "00981",
@@ -452,8 +452,8 @@
         "entry_zone": "84.8~89.04",
         "take_profit_zone": "0~97.27"
       },
-      "price": 78.55,
-      "change_pct": 6.72
+      "price": 78.99,
+      "change_pct": 7.31
     },
     {
       "code": "300548",
@@ -487,8 +487,8 @@
         "entry_zone": "253.19~265.85",
         "take_profit_zone": "0~300.43"
       },
-      "price": 273.16,
-      "change_pct": 7.89
+      "price": 275.91,
+      "change_pct": 8.97
     },
     {
       "code": "518880",
@@ -557,8 +557,8 @@
         "entry_zone": "12.94~15.1",
         "take_profit_zone": "0~15.05"
       },
-      "price": 14.23,
-      "change_pct": 0.28
+      "price": 14.24,
+      "change_pct": 0.35
     },
     {
       "code": "000700",
@@ -592,8 +592,8 @@
         "entry_zone": "13.32~14.09",
         "take_profit_zone": "0~15.54"
       },
-      "price": 14.7,
-      "change_pct": 6.06
+      "price": 14.67,
+      "change_pct": 5.84
     },
     {
       "code": "600563",
@@ -627,8 +627,8 @@
         "entry_zone": "183.44~192.61",
         "take_profit_zone": "0~206.01"
       },
-      "price": 190.02,
-      "change_pct": 0.33
+      "price": 189.6,
+      "change_pct": 0.11
     },
     {
       "code": "01088",
@@ -662,16 +662,16 @@
         "entry_zone": "40.09~40.79",
         "take_profit_zone": "0~40.33"
       },
-      "price": 34.98,
-      "change_pct": -1.95
+      "price": 35.03,
+      "change_pct": -1.8
     }
   ],
   "cash": 92678.85,
   "total_market_value": 835552.6,
-  "total_assets": 1000647.25,
+  "total_assets": 1001212.25,
   "total_pl": 0,
-  "position_pct": 86.79,
-  "updated_at": "2026-06-30 11:10",
+  "position_pct": 86.8,
+  "updated_at": "2026-06-30 11:12",
   "source": "/home/hmo/stocks/holding.xls",
   "frozen_cash": 39481.4,
   "available_cash": 92678.85,
@@ -689,7 +689,7 @@
       "timestamp": "2026-06-29 10:43"
     }
   ],
-  "total_mv": 868487.0,
+  "total_mv": 869052.0,
   "note": "cash fixed from screenshot 6/29, prices=CNY",
   "currency": "CNY",
   "last_verified_at": "2026-06-29 22:28",