refactor: use thin upstream transport adapter

sdk/agent_api_wrapper.py

@@ -1,6 +1,5 @@
 from __future__ import annotations
 
-import inspect
 import re
 import sys
 from pathlib import Path
@@ -27,11 +26,6 @@ class AgentApiWrapper(AgentApi):
         self._base_url = self._normalize_base_url(base_url)
         self._init_kwargs = dict(kwargs)
         self.chat_id = chat_id
-        if not self._supports_modern_constructor():
-            raise RuntimeError(
-                "Pinned platform-agent_api is expected to support base_url + chat_id"
-            )
-
         super().__init__(
             agent_id=agent_id,
             base_url=self._base_url,
@@ -39,21 +33,13 @@ class AgentApiWrapper(AgentApi):
             **kwargs,
         )
 
-    @staticmethod
-    def _supports_modern_constructor() -> bool:
-        try:
-            parameters = inspect.signature(AgentApi.__init__).parameters
-        except (TypeError, ValueError):
-            return False
-        return "base_url" in parameters and "chat_id" in parameters
-
     @staticmethod
     def _normalize_base_url(base_url: str) -> str:
         parsed = urlsplit(base_url)
         path = re.sub(r"(?:/v1)?/agent_ws(?:/[^/]+)?/?$", "", parsed.path.rstrip("/"))
         return urlunsplit((parsed.scheme, parsed.netloc, path, "", ""))
 
-    def for_chat(self, chat_id: int | str) -> "AgentApiWrapper":
+    def for_chat(self, chat_id: int | str) -> AgentApiWrapper:
         return type(self)(
             agent_id=self.id,
             base_url=self._base_url,