Initial commit: homelab dashboard

Elixir + Phoenix dashboard displaying public and internal homelab
services. Internal services are shown only when the request originates
from the local network, detected server-side via conn.remote_ip with
Traefik trusted as a proxy (RemoteIp plug).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

lib/homelab_dashboard_web/router.ex

@@ -0,0 +1,44 @@
+defmodule HomelabDashboardWeb.Router do
+  use HomelabDashboardWeb, :router
+
+  pipeline :browser do
+    plug :accepts, ["html"]
+    plug :fetch_session
+    plug :fetch_live_flash
+    plug :put_root_layout, html: {HomelabDashboardWeb.Layouts, :root}
+    plug :protect_from_forgery
+    plug :put_secure_browser_headers
+  end
+
+  pipeline :api do
+    plug :accepts, ["json"]
+  end
+
+  scope "/", HomelabDashboardWeb do
+    pipe_through :browser
+
+    get "/", PageController, :home
+  end
+
+  # Other scopes may use custom stacks.
+  # scope "/api", HomelabDashboardWeb do
+  #   pipe_through :api
+  # end
+
+  # Enable LiveDashboard and Swoosh mailbox preview in development
+  if Application.compile_env(:homelab_dashboard, :dev_routes) do
+    # If you want to use the LiveDashboard in production, you should put
+    # it behind authentication and allow only admins to access it.
+    # If your application does not have an admins-only section yet,
+    # you can use Plug.BasicAuth to set up some basic authentication
+    # as long as you are also using SSL (which you should anyway).
+    import Phoenix.LiveDashboard.Router
+
+    scope "/dev" do
+      pipe_through :browser
+
+      live_dashboard "/dashboard", metrics: HomelabDashboardWeb.Telemetry
+      forward "/mailbox", Plug.Swoosh.MailboxPreview
+    end
+  end
+end