Orthogonal Signal 0.2: qualify novelty through Rosetta 2.0 RCD

[SarashaElion]

Summary

• adds an upstream relational-condition input to human and machine novelty signals
• qualifies effective novelty by RCD
• prevents novelty from qualifying as Trivian emergence after relational collapse
• preserves compatibility when upstream measurement is unavailable and documents that limitation

Verification

154 repository tests passed. Cross-stack verification passed 10,000 deterministic randomized vectors.

This verifies implementation consistency, not the empirical validity of the novelty taxonomy.