feat(server): GET /api/hosts/:name returns latest fast/medium/slow samples

server/test/server_web/controllers/host_controller_test.exs

@@ -0,0 +1,36 @@
+defmodule ServerWeb.HostControllerTest do
+  use ServerWeb.ConnCase, async: true
+
+  alias Server.{Hosts, Metrics}
+
+  describe "GET /api/hosts/:name" do
+    setup do
+      {:ok, {host, _token}} = Hosts.create_host("pve-01")
+
+      {:ok, _} =
+        Metrics.record_sample(
+          host.id,
+          "fast",
+          DateTime.utc_now(),
+          %{"host" => %{"load1" => 0.5}}
+        )
+
+      %{host: host}
+    end
+
+    test "returns host info and latest samples", %{conn: conn, host: host} do
+      conn = get(conn, ~p"/api/hosts/#{host.name}")
+
+      assert %{
+               "name" => "pve-01",
+               "status" => _,
+               "samples" => %{"fast" => %{"payload" => %{"host" => %{"load1" => 0.5}}}}
+             } = json_response(conn, 200)
+    end
+
+    test "returns 404 for unknown host", %{conn: conn} do
+      conn = get(conn, ~p"/api/hosts/nope")
+      assert json_response(conn, 404) == %{"error" => "host_not_found"}
+    end
+  end
+end