Viewer lineage picker: centered tidy tree with per-row overflow bundles, you-are-here orientation (auto-center, active-path highlight, off-branch dimming), upscale provenance badges, always-visible fork markers, focus/isolate a branch, multi-select batch delete with confirm, and per-family expansion persistence. Ideogram 4 model integration: preset, prompts, t2i template, fingerprint detection, and caption/sampler nodes.