read_action option not used

[enoonan]

When configuring a read_action in a LiveResource, the adapter appears to ignore it and always use the primary :read action instead.

Steps to Reproduce

1. Configure a resource with a primary read action that has a filter:

  # In the Ash resource
  actions do
    read :read do
      primary? true
      filter expr(is_nil(archived_at))
    end

    read :read_all  # No filter, includes archived
  end

2. Configure the LiveResource to use read_all:

  defmodule MyApp.RuleLive do
    use AshBackpex.LiveResource

    backpex do
      resource MyApp.Rule
      read_action :read_all  # Should include archived records
      # ...
    end
  end

3. Archive a record (set archived_at)
4. View the Backpex index - the archived record is not displayed

Expected Behavior

The read_action :read_all should be used, showing all records including archived ones.

Actual Behavior

The primary :read action is used instead, filtering out archived records.