Reduce benign shutdown and platform log noise on macOS

proxy_chain_manager/service.py

@@ -128,7 +128,7 @@ class ChainService:
 
     def _signal_handler(self, signum: int, frame: Any) -> None:
         """Received SIGTERM/SIGINT — stop cleanly and ensure firewall is disengaged."""
-        log.warning("Signal %s received — stopping ChainService.", signum)
+        log.info("Signal %s received — stopping ChainService.", signum)
         self._stop.set()
         terminate_process(self._proc)
         fw_emergency_disengage()

proxy_chain_manager/win_compat.py

@@ -29,7 +29,6 @@ class WinCompat:
         if sys.platform != "win32":
             return (
                 f"{platform.system()} release={self.release} "
-                f"PowerShell={self.powershell_major}.x "
                 "Windows-only privacy controls disabled"
             )
         return (