Provide strategy timeframe via API

freqtrade/rpc/api_server/api_schemas.py

@@ -471,6 +471,7 @@ class FreqAIModelListResponse(BaseModel):
 class StrategyResponse(BaseModel):
     strategy: str
     code: str
+    timeframe: Optional[str]
 
 
 class AvailablePairs(BaseModel):

freqtrade/rpc/api_server/api_v1.py

@@ -350,6 +350,7 @@ def get_strategy(strategy: str, config=Depends(get_config)):
     return {
         'strategy': strategy_obj.get_strategy_name(),
         'code': strategy_obj.__source__,
+        'timeframe': getattr(strategy_obj, 'timeframe', None),
     }