feat(llm): add additional LLM configuration parameters

Extend LLMConfig class to support more fine-grained control over LLM behavior by adding:
- temperature control
- max tokens limit
- top_p sampling
- frequency and presence penalties
- stop sequences
- number of completions

These parameters allow for better customization of LLM responses.

crawl4ai/async_configs.py

@@ -1086,6 +1086,13 @@ class LLMConfig:
         provider: str = DEFAULT_PROVIDER,
         api_token: Optional[str] = None,
         base_url: Optional[str] = None,
+        temprature: Optional[float] = None,
+        max_tokens: Optional[int] = None,
+        top_p: Optional[float] = None,
+        frequency_penalty: Optional[float] = None,
+        presence_penalty: Optional[float] = None,
+        stop: Optional[List[str]] = None,
+        n: Optional[int] = None,    
     ):
         """Configuaration class for LLM provider and API token."""
         self.provider = provider
@@ -1098,7 +1105,13 @@ class LLMConfig:
                 DEFAULT_PROVIDER_API_KEY
             )
         self.base_url = base_url
-
+        self.temprature = temprature
+        self.max_tokens = max_tokens
+        self.top_p = top_p
+        self.frequency_penalty = frequency_penalty
+        self.presence_penalty = presence_penalty
+        self.stop = stop
+        self.n = n
 
     @staticmethod
     def from_kwargs(kwargs: dict) -> "LLMConfig":
@@ -1106,13 +1119,27 @@ class LLMConfig:
             provider=kwargs.get("provider", DEFAULT_PROVIDER),
             api_token=kwargs.get("api_token"),
             base_url=kwargs.get("base_url"),
+            temprature=kwargs.get("temprature"),
+            max_tokens=kwargs.get("max_tokens"),
+            top_p=kwargs.get("top_p"),
+            frequency_penalty=kwargs.get("frequency_penalty"),
+            presence_penalty=kwargs.get("presence_penalty"),
+            stop=kwargs.get("stop"),
+            n=kwargs.get("n")
         )
 
     def to_dict(self):
         return {
             "provider": self.provider,
             "api_token": self.api_token,
-            "base_url": self.base_url
+            "base_url": self.base_url,
+            "temprature": self.temprature,
+            "max_tokens": self.max_tokens,
+            "top_p": self.top_p,
+            "frequency_penalty": self.frequency_penalty,
+            "presence_penalty": self.presence_penalty,
+            "stop": self.stop,
+            "n": self.n
         }
 
     def clone(self, **kwargs):