feat(data): 封装ST股票列表接口(stock_st)

- 新增 api_stock_st.py，实现ST股票数据获取和日期遍历同步
- 更新 sync.py，将ST股票同步加入第7步流程
- 移除 base_sync.py 中未使用的 get_last_n_trading_days 导入

src/data/api_wrappers/__init__.py

@@ -11,16 +11,19 @@ Available APIs:
     - api_trade_cal: Trading calendar (交易日历)
     - api_namechange: Stock name change history (股票曾用名)
     - api_bak_basic: Stock historical list (股票历史列表)
+    - api_stock_st: ST stock list (ST股票列表)
 
 Example:
     >>> from src.data.api_wrappers import get_daily, get_stock_basic, get_trade_cal, get_bak_basic
     >>> from src.data.api_wrappers import get_pro_bar, sync_pro_bar, get_daily_basic, sync_daily_basic
+    >>> from src.data.api_wrappers import get_stock_st, sync_stock_st
     >>> data = get_daily('000001.SZ', start_date='20240101', end_date='20240131')
     >>> pro_data = get_pro_bar('000001.SZ', start_date='20240101', end_date='20240131')
     >>> daily_basic = get_daily_basic(trade_date='20240101')
     >>> stocks = get_stock_basic()
     >>> calendar = get_trade_cal('20240101', '20240131')
     >>> bak_basic = get_bak_basic(trade_date='20240101')
+    >>> stock_st = get_stock_st(trade_date='20240101')
 """
 
 from src.data.api_wrappers.api_daily import (
@@ -49,6 +52,11 @@ from src.data.api_wrappers.financial_data.api_income import (
 from src.data.api_wrappers.api_bak_basic import get_bak_basic, sync_bak_basic
 from src.data.api_wrappers.api_namechange import get_namechange, sync_namechange
 from src.data.api_wrappers.api_stock_basic import get_stock_basic, sync_all_stocks
+from src.data.api_wrappers.api_stock_st import (
+    get_stock_st,
+    sync_stock_st,
+    StockSTSync,
+)
 from src.data.api_wrappers.api_trade_cal import (
     get_trade_cal,
     get_trading_days,
@@ -92,4 +100,8 @@ __all__ = [
     "get_first_trading_day",
     "get_last_trading_day",
     "sync_trade_cal_cache",
+    # ST stock list
+    "get_stock_st",
+    "sync_stock_st",
+    "StockSTSync",
 ]