PatternKit has a fluent RecipientList runtime and enterprise messaging examples. Add an attribute-driven source-generated path so the enterprise pattern catalog can expose both fluent and generated integration paths.\n\nAcceptance criteria:\n- Add generator attributes for recipient-list routes.\n- Generate a strongly typed RecipientList factory with deterministic diagnostics.\n- Include TinyBDD generator/runtime/example coverage.\n- Document fluent and generated usage side by side.\n- Include IServiceCollection integration for the example surface.\n- Land green on CI, docs, CodeQL, and coverage.
PatternKit has a fluent RecipientList runtime and enterprise messaging examples. Add an attribute-driven source-generated path so the enterprise pattern catalog can expose both fluent and generated integration paths.\n\nAcceptance criteria:\n- Add generator attributes for recipient-list routes.\n- Generate a strongly typed RecipientList factory with deterministic diagnostics.\n- Include TinyBDD generator/runtime/example coverage.\n- Document fluent and generated usage side by side.\n- Include IServiceCollection integration for the example surface.\n- Land green on CI, docs, CodeQL, and coverage.