chore: fix comments

Author: ducphamle2

.gitignore

@@ -37,3 +37,4 @@ test/
 .aider*
 
 personal/
+.claude*

thesis_py/api.py

@@ -39,8 +39,8 @@ def __init__(
 
         Args:
             api_key (str): The API key for authenticating with the Thesis API.
-            base_url (str, optional): The base URL for the Thesis API. Defaults to "https://api.exa.ai".
-            user_agent (str, optional): Custom user agent. Defaults to "exa-py {version}".
+            base_url (str, optional): The base URL for the Thesis API. Defaults to "https://app-be.thesis.io".
+            user_agent (str, optional): Custom user agent. Defaults to "thesis-py {version}".
         """
 
         self.base_url = base_url

thesis_py/research/base.py

@@ -144,7 +144,7 @@ async def async_request(
         params: Optional[Dict[str, Any]] = None,
         headers: Optional[Dict[str, str]] = None,
     ):
-        """Send a request to the Exa API, optionally streaming if data['stream'] is True.
+        """Send a request to the Thesis.io API, optionally streaming if data['stream'] is True.
 
         Args:
             endpoint (str): The API endpoint (path).