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_15.py

@@ -5,7 +5,7 @@ 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 ChanEnum import Chan_FX_TYPE, Chan_KLC_FX, Chan_BI_DIR, Chan_KLC_FX
+from chan.core.ChanEnum import Chan_FX_TYPE, Chan_KLC_FX, Chan_BI_DIR, Chan_KLC_FX
 # --------------------------------
 from technical.util import resample_to_interval, resampled_merge
 import talib.abstract as ta
@@ -15,7 +15,7 @@ from freqtrade.persistence import Trade
 from typing import Optional
 import logging
 logger = logging.getLogger(__name__)
-from TF_DF import TF_DF
+from chan.pipeline.TF_DF import TF_DF
 ### Now you can use logger.info('asfd') to log
 # freqtrade plot-dataframe --strategy ChanLun_BTC_15 --datadir user_data/data/binance -c ./user_data/ChanLun_SOL_15.json --timerange=20250309-