nx_research_verify_synth.nx

nx_research_verify_synth.nx -- S1 <-> S2 INTEGRATION: the self-verifying researcher. It runs S1 (grounded synthesis, nx_research_synth_qwen) and then, for every NUMERIC sentence-claim, checks that the model's number is actually PRESENT (within a tight tolerance) in the source that claim cites -- CONFIRMED if present, DISCREDITED if the source has numbers but not that one (the model fabricated/altered it), UNVERIFIABLE if the claim is uncited or the source has no numbers. A synthesized answer thus grades ITS OWN numeric claims against the evidence, at $0. Composes S1 (rsq_synth / rsq_sentence_cite) + S2 (cvc_iabs, the verdict discipline). HONEST SCOPE: this catches numeric FABRICATION/ALTERATION (the common hallucination). Metric MISATTRIBUTION (right number, wrong metric) needs S2's explicit-pattern path (nx_claim_verify_core cvc_verify_text with a caller-supplied pattern, as in nx_research_refute). license_tier: ORIGINAL