fix(pluginsdk): skip reverse DNS when a Python plugin binds

HTTPServer.server_bind resolves the listen address with socket.getfqdn,
which stalled a remote-mode plugin's startup past the conformance test's
wait on the macOS runner. Nothing uses the name. The test now also bounds
each health probe and waits up to 30s.

pluginsdk/python/src/weknora_plugin/plugin.py

@@ -526,6 +526,12 @@ class _TCPServer(_Server):
             self.address_family = socket.AF_INET6
         super().__init__(address, *args)
 
+    def server_bind(self) -> None:
+        # HTTPServer.server_bind looks the host up with getfqdn, a reverse
+        # DNS query that can stall startup for seconds; nothing needs it.
+        socketserver.TCPServer.server_bind(self)
+        self.server_name, self.server_port = str(self.server_address[0]), int(self.server_address[1])
+
 
 class _UnixServer(_Server):
     address_family = getattr(socket, "AF_UNIX", socket.AF_INET)

pluginsdk/python/tests/test_plugin.py

@@ -144,6 +144,17 @@ class PluginTest(unittest.TestCase):
         self.assertEqual(events[1]["error"], {"code": "rate_limited", "message": "slow down", "retryable": True, "details": {"retryAfter": 7}})
 
 
+class BindTest(unittest.TestCase):
+    def test_no_reverse_dns_on_bind(self):
+        # getfqdn can stall startup for seconds where reverse DNS is slow.
+        from unittest import mock
+
+        with mock.patch("socket.getfqdn", side_effect=AssertionError("getfqdn called")):
+            server = plugin.test_server()
+        server.shutdown()
+        server.server_close()
+
+
 class WireTest(unittest.TestCase):
     def test_times(self):
         t = parse_time("2026-09-25T16:22:58.135616789Z")