feat: add status emoji to page titles

Add colored circle emoji (🔴/🟡/🟢) to page titles based on organization
health status:
- 🔴 Red: Critical alerts (device_down, agent_offline, severity 1)
- 🟡 Yellow: Warning alerts (severity 2 or any active alerts)
- 🟢 Green: No active alerts

Provides at-a-glance status visibility in browser tabs.

Note: Favicon remains static stoplight, only page title is dynamic.

lib/towerops_web/components/layouts.ex

@@ -7,6 +7,7 @@ defmodule ToweropsWeb.Layouts do
 
   alias ToweropsWeb.Components.ConsentPrompt
   alias ToweropsWeb.Components.CookieConsent
+  alias ToweropsWeb.Helpers.StatusHelpers
   alias ToweropsWeb.Live.Components.GlobalSearchComponent
 
   require Logger
@@ -1046,4 +1047,18 @@ defmodule ToweropsWeb.Layouts do
     </footer>
     """
   end
+
+  @doc """
+  Returns the page title with status emoji prepended based on organization health.
+  """
+  def status_title(assigns) do
+    page_title = assigns[:page_title] || "TowerOps"
+    organization = get_in(assigns, [:current_scope, Access.key(:organization)])
+
+    if organization do
+      StatusHelpers.title_with_status(page_title, organization)
+    else
+      page_title
+    end
+  end
 end

lib/towerops_web/components/layouts/root.html.heex

@@ -27,7 +27,7 @@
     <link rel="apple-touch-icon" href={~p"/images/towerops_logo.png"} />
 
     <.live_title suffix=" | TowerOps">
-      {assigns[:page_title] || "TowerOps"}
+      {status_title(assigns)}
     </.live_title>
     <link phx-track-static rel="stylesheet" href={~p"/assets/css/app.css"} />
     <script defer phx-track-static type="text/javascript" src={~p"/assets/js/app.js"}>

lib/towerops_web/helpers/status_helpers.ex

@@ -0,0 +1,63 @@
+defmodule ToweropsWeb.Helpers.StatusHelpers do
+  @moduledoc """
+  Helpers for displaying organization status indicators.
+  """
+
+  alias Towerops.Alerts
+  alias Towerops.Organizations.Organization
+
+  @doc """
+  Returns a status emoji based on the organization's active alerts.
+
+  ## Status Logic
+  - 🔴 Red circle: Critical alerts (device_down, agent_offline, or severity 1)
+  - 🟡 Yellow circle: Warning alerts (severity 2 or other active alerts)
+  - 🟢 Green circle: No active alerts
+
+  ## Examples
+
+      iex> status_emoji(%Organization{id: org_id})
+      "🔴"
+  """
+  def status_emoji(nil), do: "🟢"
+
+  def status_emoji(%Organization{id: organization_id}) do
+    case get_organization_status(organization_id) do
+      :critical -> "🔴"
+      :warning -> "🟡"
+      :healthy -> "🟢"
+    end
+  end
+
+  @doc """
+  Returns a page title with status emoji prepended.
+
+  ## Examples
+
+      iex> title_with_status("Dashboard", %Organization{})
+      "🔴 Dashboard"
+  """
+  def title_with_status(title, organization) do
+    emoji = status_emoji(organization)
+    "#{emoji} #{title}"
+  end
+
+  defp get_organization_status(organization_id) do
+    alerts = Alerts.list_organization_active_alerts(organization_id)
+
+    cond do
+      has_critical_alerts?(alerts) -> :critical
+      Enum.any?(alerts) -> :warning
+      true -> :healthy
+    end
+  end
+
+  defp has_critical_alerts?(alerts) do
+    Enum.any?(alerts, fn alert ->
+      # Device down or agent offline are always critical
+      # Severity 1 is critical
+      alert.alert_type in ["device_down", "agent_offline"] or
+        alert.severity == 1
+    end)
+  end
+end