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/index.ex

@@ -1,4 +1,25 @@
 defmodule MvWeb.UserLive.Index do
+  @moduledoc """
+  LiveView for displaying and managing the user list.
+
+  ## Features
+  - List all users with email and linked member
+  - Sort users by email (default)
+  - Delete users
+  - Navigate to user details and edit forms
+  - Bulk selection for future batch operations
+
+  ## Relationships
+  Displays linked member information when a user is connected to a member account.
+
+  ## Events
+  - `delete` - Remove a user from the database
+  - `select_user` - Toggle individual user selection
+  - `select_all` - Toggle selection of all visible users
+
+  ## Security
+  User deletion requires admin permissions (enforced by Ash policies).
+  """
   use MvWeb, :live_view
   import MvWeb.TableComponents