fix(proxy): scope wildcard cleanup to subpath entries and restore registry in test

- Only remove wildcard path from openai_routes when the route entry has
  type="subpath", avoiding accidental removal when two endpoints share
  the same base path but differ in include_subpath
- Clean up _registered_pass_through_routes in the test finally block to
  prevent stale entries from polluting subsequent tests on failure

litellm/proxy/pass_through_endpoints/pass_through_endpoints.py

@@ -2033,13 +2033,13 @@ class InitPassThroughEndpointHelpers:
             route_info = _registered_pass_through_routes[key]
             path = route_info.get("path")
             if isinstance(path, str):
-                # Remove base path and wildcard path from openai_routes
                 openai_routes = LiteLLMRoutes.openai_routes.value
                 if path in openai_routes:
                     openai_routes.remove(path)
-                wildcard_path = path.rstrip("/") + "/*"
-                if wildcard_path in openai_routes:
-                    openai_routes.remove(wildcard_path)
+                if route_info.get("type") == "subpath":
+                    wildcard_path = path.rstrip("/") + "/*"
+                    if wildcard_path in openai_routes:
+                        openai_routes.remove(wildcard_path)
             del _registered_pass_through_routes[key]
             verbose_proxy_logger.debug(
                 "Removed pass-through route from registry: %s", key

tests/test_litellm/proxy/auth/test_route_checks.py

@@ -1397,3 +1397,10 @@ async def test_initialize_pass_through_registers_wildcard_for_auth_subpath():
             assert wildcard_path not in LiteLLMRoutes.openai_routes.value
     finally:
         LiteLLMRoutes.openai_routes.value[:] = original_routes
+        # Clean up any routes registered during this test to avoid
+        # polluting the module-level _registered_pass_through_routes
+        registered = InitPassThroughEndpointHelpers.get_all_registered_pass_through_routes()
+        for k in registered:
+            InitPassThroughEndpointHelpers.remove_endpoint_routes(
+                k.split(":")[0]
+            )