fix Basic auth bug

src/libs/rpc_client.py

@@ -29,9 +29,13 @@ async def rpc_call(
     """
     headers = {
         'Content-Type': 'application/json',
-        "Authorization": os.getenv('CHATXBT_RPC_SERVER_BASIC_AUTH_CREDENTIALS')
     }
 
+    auth = httpx.BasicAuth(
+        username=os.getenv('CHATXBT_RPC_SERVER_BASIC_AUTH_USERNAME'),
+        password=os.getenv('CHATXBT_RPC_SERVER_BASIC_AUTH_PASSWORD')
+    )
+
     payload = {
         'method': method_name,
         'params': params,
@@ -41,7 +45,7 @@ async def rpc_call(
 
     try:
         async with httpx.AsyncClient() as client:
-            response = await client.post(url, json=payload, headers=headers)
+            response = await client.post(url, json=payload, headers=headers, auth=auth)
             response.raise_for_status()
             return response.json()
     except httpx.RequestError as e: