Attach a real native surface cache owner through the interpreter and compare owner identity, construction precedence, root-owner exception, ancestor payloads, and owner changes at all six fixture scales.
Co-Authored-By: GPT-6.1 Sol via OpenCode <noreply@openai.com>
Replace the FirstPatch sentinel with real rational construction patches and temporary B-spline surfaces. Export selected NURBS data and compare it through the existing Rust tree resolvers, including clearing/fallback and scale coverage.
Co-Authored-By: GPT-6.1 Sol via OpenCode <noreply@openai.com>