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/member_live/form.ex

@@ -1,4 +1,33 @@
 defmodule MvWeb.MemberLive.Form do
+  @moduledoc """
+  LiveView form for creating and editing members.
+
+  ## Features
+  - Create new members with personal information
+  - Edit existing member details
+  - Manage custom properties (dynamic fields)
+  - Real-time validation with visual feedback
+  - Link/unlink user accounts
+
+  ## Form Fields
+  **Required:**
+  - first_name, last_name, email
+
+  **Optional:**
+  - birth_date, phone_number, address fields (city, street, house_number, postal_code)
+  - join_date, exit_date
+  - paid status
+  - notes
+
+  ## Custom Properties
+  Members can have dynamic custom properties defined by PropertyTypes.
+  The form dynamically renders inputs based on available PropertyTypes.
+
+  ## Events
+  - `validate` - Real-time form validation
+  - `save` - Submit form (create or update member)
+  - Property management events for adding/removing custom fields
+  """
   use MvWeb, :live_view
 
   @impl true