Extracts workflow structure from Reactor modules via Spark introspection.

Reads the step DAG (inputs, dependencies, async/sync, retries) from a compiled Reactor module using Reactor.Info.to_struct!/1. Produces a result suitable for generating TLX specs that verify DAG properties: execution ordering, concurrency bounds, and termination.

Usage

{:ok, result} = TLX.Extractor.Reactor.extract_from_module(MyReactor)

result.steps       #=> [%{name: :fetch, depends_on: [:url], async: true}, ...]
result.inputs      #=> [:url]
result.return      #=> :store