feat: add Yahoo Finance OHLCV data provider (#469)

- Add YahooOHLCVDataProvider class for stocks, ETFs, indices, forex, and crypto
- Support market='YAHOO' in DataSource to auto-select Yahoo provider
- Implement has_data, get_data, prepare_backtest_data, get_backtest_data, copy
- Map framework TimeFrame values to yfinance intervals
- Register as default data provider alongside CCXT
- Add comprehensive unit tests with mocked yfinance

Author: MDUYN

investing_algorithm_framework/__init__.py

@@ -28,7 +28,7 @@
 from .infrastructure import AzureBlobStorageStateHandler, \
     CSVOHLCVDataProvider, CSVTickerDataProvider, \
     CCXTOHLCVDataProvider, CCXTTickerDataProvider, \
-    PandasOHLCVDataProvider, \
+    PandasOHLCVDataProvider, YahooOHLCVDataProvider, \
     AWSS3StorageStateHandler
 from .create_app import create_app
 from .download_data import download, download_v2, DownloadResult, \
@@ -116,6 +116,7 @@
     'CSVTickerDataProvider',
     "CCXTOHLCVDataProvider",
     "CCXTTickerDataProvider",
+    "YahooOHLCVDataProvider",
     "DataProvider",
     "get_annual_volatility",
     "get_sortino_ratio",

investing_algorithm_framework/infrastructure/__init__.py

@@ -13,7 +13,8 @@
 from .data_providers import CSVOHLCVDataProvider, \
     CSVTickerDataProvider, get_default_data_providers, \
     get_default_ohlcv_data_providers, CCXTOHLCVDataProvider, \
-    CCXTTickerDataProvider, PandasOHLCVDataProvider
+    CCXTTickerDataProvider, PandasOHLCVDataProvider, \
+    YahooOHLCVDataProvider
 from .order_executors import CCXTOrderExecutor, BacktestOrderExecutor
 from .portfolio_providers import CCXTPortfolioProvider
 
@@ -51,5 +52,6 @@
     "CCXTTickerDataProvider",
     "BacktestOrderExecutor",
     "PandasOHLCVDataProvider",
+    "YahooOHLCVDataProvider",
     "BacktestService",
 ]

investing_algorithm_framework/infrastructure/data_providers/__init__.py

@@ -1,6 +1,7 @@
 from .ccxt import CCXTOHLCVDataProvider, CCXTTickerDataProvider
 from .csv import CSVOHLCVDataProvider, CSVTickerDataProvider
 from .pandas import PandasOHLCVDataProvider
+from .yahoo import YahooOHLCVDataProvider
 
 
 def get_default_data_providers():
@@ -13,6 +14,7 @@ def get_default_data_providers():
     return [
         CCXTOHLCVDataProvider(),
         CCXTTickerDataProvider(),
+        YahooOHLCVDataProvider(),
     ]
 
 
@@ -25,6 +27,7 @@ def get_default_ohlcv_data_providers():
     """
     return [
         CCXTOHLCVDataProvider(),
+        YahooOHLCVDataProvider(),
     ]
 
 
@@ -36,4 +39,5 @@ def get_default_ohlcv_data_providers():
     'get_default_data_providers',
     'get_default_ohlcv_data_providers',
     'PandasOHLCVDataProvider',
+    'YahooOHLCVDataProvider',
 ]