Add maintenance page

Some actions are missing

lib/music_library_web/live/maintenance_live/index.ex

@@ -0,0 +1,49 @@
+defmodule MusicLibraryWeb.MaintenanceLive.Index do
+  use MusicLibraryWeb, :live_view
+
+  require Logger
+
+  alias MusicLibrary.Records.Batch
+  alias MusicLibrary.Repo
+
+  def mount(_params, _session, socket) do
+    {:ok,
+     socket
+     |> assign(
+       page_title: gettext("Maintenance"),
+       current_section: :maintenance
+     )}
+  end
+
+  def handle_event("refresh_records_musicbrainz_data", _params, socket) do
+    Batch.refresh_musicbrainz_data()
+
+    {:noreply,
+     socket
+     |> put_toast(:info, gettext("Operation started in the background."))}
+  end
+
+  def handle_event("generate_record_embeddings", _params, socket) do
+    Batch.generate_embeddings()
+
+    {:noreply,
+     socket
+     |> put_toast(:info, gettext("Operation started in the background."))}
+  end
+
+  def handle_event("db_vacuum", _params, socket) do
+    case Repo.vacuum() do
+      {:ok, _result} ->
+        {:noreply,
+         socket
+         |> put_toast(:info, gettext("Database vacuumed successfully."))}
+
+      {:error, reason} ->
+        Logger.error("Database vacuum failed: #{inspect(reason)}.")
+
+        {:noreply,
+         socket
+         |> put_toast(:error, "Database vacuum failed: #{inspect(reason)}.")}
+    end
+  end
+end