refactor(archive): move unused modules to archive/

Archive legacy framework and utility modules that are no longer
referenced by the active core (datasource/ and rotation/):

- framework/ -> archive/framework/
- framework_v2/ -> archive/framework_v2/
- strategies/ -> archive/strategies/
- config/ -> archive/config/
- visualization/ -> archive/visualization/
- scripts/ -> archive/scripts/
- tests/ -> archive/tests/
- run_rotation.py, run_us_rotation.py -> archive/single_files/
- compare_*.py, test_api_dates.py -> archive/single_files/

archive/framework/__init__.py

@@ -0,0 +1,60 @@
+"""
+框架统一入口（通用）
+
+只导出抽象接口，具体实现在strategies/shared/
+"""
+
+# 因子层抽象
+from framework.factors import FactorBase, FactorRegistry, FactorCombiner
+
+# 信号层抽象
+from framework.signals import SignalGenerator
+
+# 风控层抽象
+from framework.risk import Position, RiskControl, CallbackHook
+
+# 策略层抽象
+from framework.strategy import StrategyBase
+
+# 执行层抽象
+from framework.execution import Portfolio, Executor, BacktestExecutor, DryRunExecutor
+
+# 配置层
+from framework.config import ConfigLoader, StrategyConfig
+
+# 数据层抽象
+from framework.data import OHLCVData, DataSource, DataCache
+
+
+__all__ = [
+    # 因子层
+    'FactorBase',
+    'FactorRegistry',
+    'FactorCombiner',
+    
+    # 信号层
+    'SignalGenerator',
+    
+    # 风控层
+    'Position',
+    'RiskControl',
+    'CallbackHook',
+    
+    # 策略层
+    'StrategyBase',
+    
+    # 执行层
+    'Portfolio',
+    'Executor',
+    'BacktestExecutor',
+    'DryRunExecutor',
+    
+    # 配置层
+    'ConfigLoader',
+    'StrategyConfig',
+    
+    # 数据层
+    'OHLCVData',
+    'DataSource',
+    'DataCache',
+]