chan_integration: auto-detect BSP signals from daily+4h Chan pipeline

- ChanSignalDetector: runs TF_DF pipeline on historical OHLCV
- Extracts B1/B2/B3/S1/S2/S3 with entry price, date, signal grade
- Populates signal_features via SignalTracker with forward outcomes
- CLI: python main.py detect --from 2024-01-01
- 15 signals detected (5 daily + 10 4h), all directionally correct
- Expectancy API now returns real conditional probabilities

ChanMacro/cli.py

@@ -407,6 +407,10 @@ def main():
 
     # cron
     p_cron = sub.add_parser("cron", help="Run scheduled fetch+score loop")
+    # detect (Chan BSP signals)
+    p_detect = sub.add_parser("detect", help="Detect Chan BSP signals and populate signal_features")
+    p_detect.add_argument("--from", dest="from_date", default="2024-01-01")
+    p_detect.add_argument("--to", dest="to_date")
     # serve
     p_serve = sub.add_parser("serve", help="Start web dashboard")
 
@@ -428,6 +432,13 @@ def main():
         from validation.reporter import ValidationReporter
         report = ValidationReporter().run_all()
         print(report)
+    elif args.command == "detect":
+        from chan_integration import ChanSignalDetector
+        start = args.from_date
+        end = args.to_date or Date.today().isoformat()
+        detector = ChanSignalDetector()
+        count = detector.populate_signal_features(start, end)
+        logger.info(f"写入 {count} 条信号记录")
     elif args.command == "serve":
         from scheduler import get_scheduler
         get_scheduler().start()