Improve remote session management and Windows support

tests/test_discovery.py

@@ -39,12 +39,37 @@ class EndpointTests(unittest.TestCase):
                 "work",
             ],
         )
+        self.assertEqual(
+            Endpoint.remote(
+                "ssh://me@windows:2222",
+                "work",
+                remote_transport="ssh",
+            ).command("/bin/herdr", "/bin/ssh"),
+            [
+                "/bin/ssh",
+                "-tt",
+                "-o",
+                "ServerAliveInterval=15",
+                "-o",
+                "ServerAliveCountMax=3",
+                "-p",
+                "2222",
+                "-l",
+                "me",
+                "windows",
+                "herdr --session work",
+            ],
+        )
 
     def test_identity_ignores_remote_keybinding_mode(self) -> None:
         local = Endpoint.remote("orangepi", remote_keybindings="local")
         server = Endpoint.remote("orangepi", remote_keybindings="server")
         self.assertEqual(local.key, server.key)
         self.assertEqual(dedupe_endpoints([local, server]), [local])
+        self.assertEqual(
+            Endpoint.remote("orangepi").key,
+            Endpoint.remote("orangepi", remote_transport="ssh").key,
+        )
 
     def test_short_labels_put_the_host_first_and_omit_default(self) -> None:
         self.assertEqual(Endpoint.local().short_label, "local")
@@ -67,7 +92,12 @@ class EndpointTests(unittest.TestCase):
         )
 
     def test_endpoint_metadata_and_legacy_command_round_trip(self) -> None:
-        endpoint = Endpoint.remote("ssh://me@host:2222", "work", "server")
+        endpoint = Endpoint.remote(
+            "ssh://me@host:2222",
+            "work",
+            "server",
+            "ssh",
+        )
         self.assertEqual(deserialize_endpoint(serialize_endpoint(endpoint)), endpoint)
         self.assertEqual(
             deserialize_endpoint(