branch_scanner 彻底静默：自成长采集器不出操作信号

branch_scanner 是自成长数据收集器，不输出也不推送。
操作信号由 stale_push_wlin / price_monitor / 开盘收盘简报 按cron-report-format规范输出。
scanner只做三件事：
1. 每15分钟扫价格+评估分支
2. trigger_count + 1（决策树数据）
3. 更新状态快照

data/portfolio.json

@@ -55,8 +55,8 @@
         "action_note": "⚠️盈亏比偏低(1:1.3)，不建议加仓",
         "timing_signal": "大盘中性，行业中性，高估值，蓝筹，持有"
       },
-      "price": 83.95,
-      "change_pct": 7.84
+      "price": 83.65,
+      "change_pct": 7.45
     },
     {
       "code": "01088",
@@ -85,7 +85,7 @@
         "timing_signal": "大盘中性，行业中性，蓝筹，持有"
       },
       "price": 41.52,
-      "change_pct": -1.09
+      "change_pct": -1.28
     },
     {
       "code": "01211",
@@ -113,8 +113,8 @@
         "action_note": "深套持有",
         "timing_signal": "大盘中性，行业偏弱，蓝筹，持有"
       },
-      "price": 75.0,
-      "change_pct": -1.12
+      "price": 74.95,
+      "change_pct": -1.19
     },
     {
       "code": "01478",
@@ -142,8 +142,8 @@
         "action_note": "深套持有",
         "timing_signal": "大盘中性，行业中性，低估值，持有"
       },
-      "price": 7.68,
-      "change_pct": -2.79
+      "price": 7.67,
+      "change_pct": -2.66
     },
     {
       "code": "01888",
@@ -171,8 +171,8 @@
         "action_note": "短炒强趋势持",
         "timing_signal": "大盘中性，行业偏弱，高估值，强趋势持"
       },
-      "price": 96.75,
-      "change_pct": 10.89
+      "price": 96.15,
+      "change_pct": 10.2
     },
     {
       "code": "02202",
@@ -201,7 +201,7 @@
         "timing_signal": "大盘中性，行业中性，高估值，持有"
       },
       "price": 2.34,
-      "change_pct": -2.5
+      "change_pct": -2.92
     },
     {
       "code": "02388",
@@ -229,8 +229,8 @@
         "action_note": "",
         "timing_signal": "大盘中性，行业偏强，低估值，蓝筹，持有"
       },
-      "price": 46.4,
-      "change_pct": -1.02
+      "price": 46.32,
+      "change_pct": -1.45
     },
     {
       "code": "09988",
@@ -258,8 +258,8 @@
         "action_note": "深套持有",
         "timing_signal": "大盘中性，行业偏弱，蓝筹，持有"
       },
-      "price": 98.25,
-      "change_pct": -0.66
+      "price": 98.45,
+      "change_pct": -0.51
     },
     {
       "code": "300035",
@@ -287,8 +287,8 @@
         "action_note": "深套持有",
         "timing_signal": "大盘中性，行业偏弱，持有"
       },
-      "price": 16.21,
-      "change_pct": -0.92
+      "price": 16.17,
+      "change_pct": -0.98
     },
     {
       "code": "300548",
@@ -316,8 +316,8 @@
         "action_note": "短炒强趋势持",
         "timing_signal": "大盘中性，行业中性，高估值，强趋势持"
       },
-      "price": 282.89,
-      "change_pct": -1.09
+      "price": 282.02,
+      "change_pct": -1.4
     },
     {
       "code": "300690",
@@ -345,8 +345,8 @@
         "action_note": "⚠️盈亏比偏低(1:1.5)，不建议加仓",
         "timing_signal": "大盘中性，行业偏弱，持有"
       },
-      "price": 22.82,
-      "change_pct": -3.47
+      "price": 22.83,
+      "change_pct": -3.39
     },
     {
       "code": "300750",
@@ -374,8 +374,8 @@
         "action_note": "",
         "timing_signal": "大盘中性，行业偏弱，蓝筹，持有"
       },
-      "price": 393.04,
-      "change_pct": 0.14
+      "price": 392.25,
+      "change_pct": -0.07
     },
     {
       "code": "518880",
@@ -404,7 +404,7 @@
         "timing_signal": "大盘中性，行业偏弱，持有"
       },
       "price": 8.45,
-      "change_pct": -0.97
+      "change_pct": -1.07
     },
     {
       "code": "600036",
@@ -432,8 +432,8 @@
         "action_note": "⚠️盈亏比偏低(1:1.2)，不建议加仓",
         "timing_signal": "大盘中性，行业偏强，低估值，蓝筹，弱势持有"
       },
-      "price": 37.04,
-      "change_pct": -0.94
+      "price": 37.07,
+      "change_pct": -0.88
     },
     {
       "code": "600563",
@@ -490,8 +490,8 @@
         "action_note": "⚠️盈亏比偏低(1:1.2)，不建议加仓",
         "timing_signal": "大盘中性，行业偏强，持有"
       },
-      "price": 10.49,
-      "change_pct": -1.5
+      "price": 10.47,
+      "change_pct": -1.69
     },
     {
       "code": "601899",
@@ -519,8 +519,8 @@
         "action_note": "深套持有",
         "timing_signal": "大盘中性，行业偏弱，低估值，蓝筹，持有"
       },
-      "price": 27.58,
-      "change_pct": -0.61
+      "price": 27.56,
+      "change_pct": -0.68
     },
     {
       "code": "603259",
@@ -548,8 +548,8 @@
         "action_note": "",
         "timing_signal": "大盘中性，行业偏强，低估值，持有"
       },
-      "price": 116.26,
-      "change_pct": 9.36
+      "price": 116.18,
+      "change_pct": 9.28
     },
     {
       "code": "688411",
@@ -577,8 +577,8 @@
         "action_note": "",
         "timing_signal": "持有"
       },
-      "price": 267.1,
-      "change_pct": -2.11
+      "price": 267.18,
+      "change_pct": -1.86
     },
     {
       "code": "688981",
@@ -606,8 +606,8 @@
         "action_note": "",
         "timing_signal": "大盘中性，行业中性，高估值，蓝筹，持有"
       },
-      "price": 150.91,
-      "change_pct": 6.5
+      "price": 151.24,
+      "change_pct": 6.73
     }
   ]
 }