docs: add v2 workflow, rename Legacy, update wiki for Settings nodes
- Add example_workflows/LoRa Optimizer v2.json for the new node layout
- Rename LoRA Optimizer (Advanced) → (Legacy) across all wiki pages
- Document Settings nodes (Merge, Optimizer, AutoTuner) in Nodes.md
- Add Settings and Compatibility Analyzer workflows to Workflows.md
- Add decision_smoothing, smooth_slerp_gate, scoring_speed/formula,
and Settings node architecture to Configuration-Guide.md
- Update How-It-Works.md node registry and variant descriptions
- Rename patch_compression non_ties → smart in all references
- Update Home.md feature table (8 architectures, settings nodes)
- Add zit_example_1.png asset
- Update SVG assets (timeline, pipeline, bridge, ties, merge-use-cases)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
