refactor: 缠论引擎迁入 chan/ 分层解耦，指标外置

将核心结构、指标与分析拆到 chan/{core,indicators,analysis,pipeline}；
根目录保留兼容 shim；strategies 改为从 chan 包导入；买卖点经 bsp_macd 与 MACD 接合。

Co-authored-by: Cursor <cursoragent@cursor.com>

strategies/ChanLun_BTC_K.py

@@ -5,10 +5,10 @@ import sys
 import os
 # 添加父目录到系统路径
 sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
-from ChanLun import ChanLun
-from ChanLun_Classifier import ChanLunClassifier
-from ChanEnum import Chan_FX_TYPE, Chan_KLC_FX, Chan_BI_DIR, Chan_KLC_FX
-from ChanPY import ChanPY
+from chan.pipeline.ChanLun import ChanLun
+from chan.analysis.ChanLun_Classifier import ChanLunClassifier
+from chan.core.ChanEnum import Chan_FX_TYPE, Chan_KLC_FX, Chan_BI_DIR, Chan_KLC_FX
+from chan.analysis.ChanPY import ChanPY
 # --------------------------------
 from technical.util import resample_to_interval, resampled_merge
 import talib.abstract as ta