test: pin Edge redirect shared golden evidence chain

[01rabbit]

Scope

Pins the Edge producer portion of the cross-product golden evidence/replay chain.

Edge constructs a redirect Execution receipt and independently observed REDIRECTION mechanism, exports both into shared v0.1, and verifies exact golden facts.

Cross-repo drift gate

All three shared facts are present locally and cross_product_manifest_v0.json pins canonical JSON SHA-256 values. CI recomputes every digest and fails if any fixture silently drifts.

Adversarial boundary

• REDIRECT / REDIRECTION is not treated as DIVERT.
• No attacker belief, success, Tempo reduction or causal claim is created.
• Execution and mechanism remain separate facts.
• Presented Terrain outcome is retained only as a cross-product fixture; Edge does not become its authority.

Validation

Latest head 3b70ede7c5f12f13ec20956b4a4e2db71fd0f04c: CI PASS.

Part of: Edge producer -> Fabric validation -> Deception outcome -> Knowledge immutable ingest/replay.

Refs #400 · Fabric #16 · Knowledge #67 · Deception #30