Onyx Ingenuity: M4.3 Runtime Smoke Test

Reduced-scale reuse of the production circuit background and letter-trace engine. Font fidelity is out of scope; this verifies runtime and animation behavior only.

GSAP loaded
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ScrollTrigger registered
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Lenis initialized and ticking
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Canvas/field painting (10s sample)
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Letter trace completed (ONYX / INGENUITY)
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Reduced-motion check
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