Audit pass: full-corpus evidence, full-gate mutation, 3-way metamorphic, recomputable causal, bundle attestation

1 (artifact bundle): ci_reports writes evidence/MANIFEST.tsv (content hash+len of
  every evidence file); attestation verifies completeness+integrity; merge-gates
  requires the bundle.
2 (every leaf full evidence): run_all_to streams a full trace+delta record for
  EVERY leaf (base 'b' and perturbation 'p'), not a sample.
3 (attestation completeness): attestation enforces a leaf<->trace bijection
  (traces == leaves and covered set == leaf set), not just consistency.
4 (collapse derives from full traces): trace_feature_row single-sourced into
  collapse_analysis; attestation recomputes each collapse row from the retained
  full trace and requires bit-exact match.
5 (mutants through full gates): evaluate_mutants runs each mutant through
  engine_acceptance over 128 generated cases (trace/equivalence/domain/
  metamorphic/causal), replacing the 64-input local predicates.
6 (trace+delta+future): metamorphic enforces consumed->trace per-case plus
  consumed-aggregate delta (>=0.65) and future (>=0.80) rates.
7 (recomputable causal): per-edge intervention records written to
  evidence/causal_evidence.tsv; attestation RE-EXECUTES each from its seed and
  recomputes base_dv/alt_dv.
8 (no string/comment proof): removed web_assets JS-substring test and the
  tautological string assert in ci_reports.

Verified at fast scale end-to-end: 6600/6600 traces reconstructed, leaf
bijection, 1600/1600 causal records recomputed, 600/600 collapse rows derived,
bundle intact.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

crates/attestation/Cargo.toml

@@ -15,3 +15,8 @@ path = "src/main.rs"
 # and hashing the verifier reconstructs from raw evidence.
 world_model = { path = "../world_model" }
 trace_model = { path = "../trace_model" }
+# For independent RE-EXECUTION of retained per-edge causal interventions.
+generators = { path = "../generators" }
+reference_runtime = { path = "../reference_runtime" }
+# For recomputing collapse feature rows from full traces (proving derivation).
+collapse_analysis = { path = "../collapse_analysis" }