fix: add @moduledoc to all public modules (CSM-018)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

lib/bds/scripting/api_docs.ex

@@ -1,5 +1,8 @@
 defmodule BDS.Scripting.ApiDocs do
-  @moduledoc false
+  @moduledoc """
+  Machine-readable documentation for the Lua scripting API, used to generate
+  help text, autocompletion data, and the published API reference.
+  """
 
   @version "0.4.0"
 

lib/bds/scripting/capabilities.ex

@@ -1,5 +1,8 @@
 defmodule BDS.Scripting.Capabilities do
-  @moduledoc false
+  @moduledoc """
+  Builds the capability map exposed to Lua scripts, binding each scripting API
+  method to its Elixir implementation for a given project context.
+  """
 
   alias BDS.I18n
   alias BDS.Tasks