全面移除JSON数据源 移至mo_data/DB

- 宏观风险扫描(3个cron): portfolio.json -> mo_data.read_portfolio()
- 小果情感分析: decisions/portfolio.json -> mo_data read+write xiaoguo_insights.json
- 芯碁微装监控: decisions.json -> mo_data.read_decisions()
- 开盘/收盘简报: 去掉portfolio.json/decisions.json/watchlist.json文件读取，全部从mo_data
- 系统健康检查: 仅保留文件存在性检查，数据从DB
- 知识萃取: stale_staleness_report.json/decisions.json注入改为context注入

数据管道稳定：唯一入口price_monitor -> DB -> mo_data读 -> LLM cron输出

data/price_history.json

@@ -26,7 +26,7 @@
       "date": "2026-07-03",
       "high": 1215.52,
       "low": 1190.51,
-      "close": 1201.38
+      "close": 1203.6
     }
   ],
   "02202": [
@@ -48,7 +48,7 @@
       "date": "2026-07-03",
       "high": 53.0,
       "low": 51.7,
-      "close": 52.4
+      "close": 52.5
     }
   ],
   "601318": [
@@ -62,7 +62,7 @@
       "date": "2026-07-03",
       "high": 50.2,
       "low": 48.8,
-      "close": 49.05
+      "close": 49.12
     }
   ],
   "02359": [
@@ -76,7 +76,7 @@
       "date": "2026-07-03",
       "high": 158.7,
       "low": 151.1,
-      "close": 152.8
+      "close": 153.1
     }
   ],
   "02388": [
@@ -90,7 +90,7 @@
       "date": "2026-07-03",
       "high": 42.98,
       "low": 41.94,
-      "close": 42.7
+      "close": 42.66
     }
   ],
   "02628": [
@@ -104,7 +104,7 @@
       "date": "2026-07-03",
       "high": 29.08,
       "low": 27.5,
-      "close": 28.58
+      "close": 28.66
     }
   ],
   "688630": [
@@ -132,7 +132,7 @@
       "date": "2026-07-03",
       "high": 183.9,
       "low": 171.9,
-      "close": 182.5
+      "close": 183.3
     }
   ],
   "06869": [
@@ -168,7 +168,7 @@
       "date": "2026-07-03",
       "high": 53.7,
       "low": 49.3,
-      "close": 50.5
+      "close": 51.1
     }
   ],
   "09988": [
@@ -182,7 +182,7 @@
       "date": "2026-07-03",
       "high": 97.4,
       "low": 93.55,
-      "close": 95.35
+      "close": 95.5
     }
   ],
   "688802": [
@@ -210,7 +210,7 @@
       "date": "2026-07-03",
       "high": 71.79,
       "low": 67.31,
-      "close": 71.42
+      "close": 71.07
     }
   ],
   "000657": [
@@ -224,7 +224,7 @@
       "date": "2026-07-03",
       "high": 101.5,
       "low": 87.92,
-      "close": 88.72
+      "close": 88.6
     }
   ],
   "000711": [
@@ -238,7 +238,7 @@
       "date": "2026-07-03",
       "high": 5.26,
       "low": 4.87,
-      "close": 5.26
+      "close": 5.25
     }
   ],
   "001309": [
@@ -252,7 +252,7 @@
       "date": "2026-07-03",
       "high": 872.83,
       "low": 795.0,
-      "close": 841.41
+      "close": 835.99
     }
   ],
   "002594": [
@@ -266,7 +266,7 @@
       "date": "2026-07-03",
       "high": 87.28,
       "low": 81.9,
-      "close": 86.91
+      "close": 86.88
     }
   ],
   "00700": [
@@ -288,7 +288,7 @@
       "date": "2026-07-03",
       "high": 2.15,
       "low": 2.03,
-      "close": 2.1
+      "close": 2.11
     }
   ],
   "00981": [
@@ -308,9 +308,9 @@
     },
     {
       "date": "2026-07-03",
-      "high": 13.19,
+      "high": 13.31,
       "low": 12.63,
-      "close": 13.13
+      "close": 13.31
     }
   ],
   "01088": [
@@ -328,5 +328,13 @@
       "low": 74.95,
       "close": 78.7
     }
+  ],
+  "301308": [
+    {
+      "date": "2026-07-03",
+      "high": 612.3,
+      "low": 574.1,
+      "close": 600.8
+    }
   ]
 }