fix: Replace extra_headers and extra_body with extra_params in Coder, ChatSummary, and GitRepo

aider/coders/base_coder.py

@@ -1409,9 +1409,7 @@ class Coder:
                 functions,
                 self.stream,
                 temp,
-                extra_headers=model.extra_headers,
-                extra_body=model.extra_body,
-                max_tokens=model.max_tokens,
+                extra_params=model.extra_params,
             )
             self.chat_completion_call_hashes.append(hash_object.hexdigest())
 

aider/history.py

@@ -109,7 +109,7 @@ class ChatSummary:
         for model in self.models:
             try:
                 summary = simple_send_with_retries(
-                    model.name, summarize_messages, extra_headers=model.extra_headers
+                    model.name, summarize_messages, extra_params=model.extra_params
                 )
                 if summary is not None:
                     summary = prompts.summary_prefix + summary

aider/repo.py

@@ -193,7 +193,7 @@ class GitRepo:
             if max_tokens and num_tokens > max_tokens:
                 continue
             commit_message = simple_send_with_retries(
-                model.name, messages, extra_headers=model.extra_headers
+                model.name, messages, extra_params=model.extra_params
             )
             if commit_message:
                 break

aider/sendchat.py

@@ -96,9 +96,8 @@ def simple_send_with_retries(model_name, messages, extra_params=None):
             "messages": messages,
             "functions": None,
             "stream": False,
+            "extra_params": extra_params,
         }
-        if extra_params is not None:
-            kwargs["extra_params"] = extra_params
 
         _hash, response = send_completion(**kwargs)
         return response.choices[0].message.content