docs: add @moduledoc to all LiveView modules

Add comprehensive module documentation to 12 LiveView modules covering
member, user, property, and property_type management views.

lib/mv_web/live/user_live/show.ex

@@ -1,4 +1,29 @@
 defmodule MvWeb.UserLive.Show do
+  @moduledoc """
+  LiveView for displaying a single user's details.
+
+  ## Features
+  - Display user information (email, OIDC ID)
+  - Show authentication methods (password, OIDC)
+  - Display linked member account (if exists)
+  - Navigate to edit form
+  - Return to user list
+
+  ## Displayed Information
+  - Email address
+  - OIDC ID (if authenticated via OIDC)
+  - Password authentication status
+  - Linked member (name and email)
+
+  ## Authentication Status
+  Shows which authentication methods are enabled for the user:
+  - Password authentication (has hashed_password)
+  - OIDC authentication (has oidc_id)
+
+  ## Navigation
+  - Back to user list
+  - Edit user (with return_to parameter for back navigation)
+  """
   use MvWeb, :live_view
 
   @impl true