fix(proxy): suppress false-positive windows-footgun on guarded add_signal_handler

The call site at line 246 is already wrapped in try/except NotImplementedError
(added in #25969). The checker just doesn't peek at surrounding context.
Mark with the suppression comment so the blocking check passes.

hermes_cli/proxy/server.py

@@ -243,7 +243,7 @@ async def run_server(
         loop = asyncio.get_running_loop()
         for sig in (signal.SIGINT, signal.SIGTERM):
             try:
-                loop.add_signal_handler(sig, stop_event.set)
+                loop.add_signal_handler(sig, stop_event.set)  # windows-footgun: ok
             except NotImplementedError:
                 # Windows / restricted environments — Ctrl+C will still
                 # raise KeyboardInterrupt and unwind us.