target first remote browser when not giving it with a alias and update version to 0.8.4

tests/test_client.py

@@ -170,6 +170,61 @@ def test_remote_target_for_alias_accepts_full_endpoint_profile(monkeypatch):
     assert target.remote == "host:8765"
 
 
+def test_remote_target_for_alias_accepts_host_when_only_one_remote_target(monkeypatch):
+    remote_host = "browser-host.example"
+    remote_endpoint = f"{remote_host}:8765"
+    monkeypatch.setattr(
+        "browser_cli.client._remote_browser_targets",
+        lambda: [BrowserTarget("work", f"{remote_host}:work", "", remote=remote_endpoint, token="secret")],
+    )
+
+    target = remote_target_for_alias(remote_host)
+
+    assert target is not None
+    assert target.profile == "work"
+    assert target.remote == remote_endpoint
+
+
+def test_send_command_resolves_host_alias_to_single_remote_target(monkeypatch):
+    remote_host = "browser-host.example"
+    remote_endpoint = f"{remote_host}:8765"
+    monkeypatch.delenv("BROWSER_CLI_REMOTE", raising=False)
+    monkeypatch.delenv("BROWSER_CLI_TOKEN", raising=False)
+    monkeypatch.setenv("BROWSER_CLI_PROFILE", remote_host)
+    sent = {}
+
+    monkeypatch.setattr(
+        "browser_cli.client._remote_browser_targets",
+        lambda: [BrowserTarget("work", f"{remote_host}:work", "", remote=remote_endpoint, token="secret")],
+    )
+
+    def fake_send_remote(endpoint, framed):
+        payload_len = int.from_bytes(framed[:4], "little")
+        msg = json.loads(framed[4:4 + payload_len])
+        sent["endpoint"] = endpoint
+        sent.update(msg)
+        return json.dumps({"success": True, "data": []}).encode("utf-8")
+
+    monkeypatch.setattr("browser_cli.client._send_remote", fake_send_remote)
+
+    assert send_command("tabs.list") == []
+    assert sent["endpoint"] == remote_endpoint
+    assert sent["_route"] == "work"
+    assert sent["token"] == "secret"
+
+
+def test_remote_target_for_alias_keeps_host_alias_ambiguous_for_multiple_targets(monkeypatch):
+    monkeypatch.setattr(
+        "browser_cli.client._remote_browser_targets",
+        lambda: [
+            BrowserTarget("main", "host:main", "", remote="host:8765", token="secret"),
+            BrowserTarget("work", "host:work", "", remote="host:8765", token="secret"),
+        ],
+    )
+
+    assert remote_target_for_alias("host") is None
+
+
 def test_send_command_requires_browser_for_multiple_remote_targets(monkeypatch):
     monkeypatch.delenv("BROWSER_CLI_PROFILE", raising=False)
     monkeypatch.setattr(