Replace manual endpoint URL assembly with get_proper_endpoint helper and remove unused chat_ep call.

Author: Paweł Kędzia

llm_router_api/endpoints/endpoint_i.py

@@ -712,12 +712,12 @@ def run_ep(
 
             use_streaming = bool((params or {}).get("stream", False))
 
-            if simple_proxy and not use_streaming:
-                ep_pref = ""
-                if self.add_api_prefix and DEFAULT_API_PREFIX:
-                    ep_pref = DEFAULT_API_PREFIX.strip()
-                ep_url = ep_pref.strip("/") + "/" + self.name.lstrip("/")
+            # Prepare proper endpoint url
+            ep_url = self._api_type_dispatcher.get_proper_endpoint(
+                api_type=api_model_provider.api_type, endpoint_url=self.name
+            )
 
+            if simple_proxy and not use_streaming:
                 return self._return_response_or_rerun(
                     api_model_provider=api_model_provider,
                     ep_url=ep_url,
@@ -732,10 +732,6 @@ def run_ep(
                 self.logger.debug(f" -> prompt_name: {prompt_name}")
                 self.logger.debug(f" -> prompt_str: {str(prompt_str)[:40]}...")
 
-            ep_url = self._api_type_dispatcher.chat_ep(
-                api_type=api_model_provider.api_type
-            )
-
             if api_model_provider.api_type in ["openai"]:
                 params = self._filter_params_to_acceptable(
                     api_type=api_model_provider.api_type, params=params