Brummel
481172ae2e
render_blueprint and render_definition were two divergent paths: the main graph drew bare factory.label() leaves and bare edges, the composite interior drew enriched leaves (params, slot stubs, output bindings). They now delegate to one shared render_graph over borrowed slices — the blueprint is the root composite, differing only at the borders (ParamNames::Factory vs Aliases, Entry unifying SourceSpec and Role, empty OutField list = no bindings). LeafFactory holds a Box<dyn Fn>, so it is not Clone — an owned root-composite adapter is impossible; the shared core takes borrowed slices instead. The main graph now shows what the strategy does: a multi-output producer's selected field surfaces as a consumer-side prefix ([histogram -> Exposure(scale)]), mirroring the := output-binding form. Edge labels are deliberately avoided — ascii-dag 0.9.1 silently drops an edge label it cannot place without collision (arena_render.rs can_place_label), unreliable in a dense graph. Deferred: top-level blueprint multi-input leaves render without #-slot stubs (stub_ctx None) — fan_in_identifiers is still composite-coupled via signature_of. refs #48