Build a map of handler => [component_types] by walking the UI tree. Used by generate_dsl_with_docs/3 to annotate handlers with their sources.

Extract event handler names from a UI tree.

Generate DSL-style screen module source.

Generate DSL-style screen module source with @doc annotations on handle_event/3 stubs.

Each handler's @doc references the component types that can trigger it, making it easier to understand the event flow at a glance.

Options

• :attributes — list of {name, type, default} tuples for DSL attributes
• :component_map — optional pre-computed map of handler => [component_types] (useful for avoiding re-traversal when caller already has this info)

Example output

def handle_event(:increment, _params, socket) do
  @doc "Triggered by: text, button"
  {:noreply, socket}
end