refactor: simplify distillation data layout

designir-pipeline/agents/acceptance-agent.md

@@ -7,9 +7,9 @@ meaningfully editable.
 
 ## Allowed inputs
 
-- Teacher STEP from the protected teacher vault.
-- Candidate DesignIR.
-- Reconstructed STEP.
+- Teacher STEP from protected `input/`.
+- Candidate DesignIR from `runs/designir/`.
+- Reconstructed STEP from `runs/rebuilt/`.
 - Deterministic compiler version.
 - Modification test contract.
 
@@ -36,10 +36,9 @@ Parametric behavior:
 
 ## Required output
 
-Write one machine-readable acceptance report with separate geometry,
+Write one machine-readable report under `runs/acceptance/` with separate geometry,
 feature-semantic, parameter-editability, and stability sections. Never collapse
 the result into an unexplained similarity score.
 
 The agent may recommend pass, fail, or quarantine. Only the deterministic
 publisher changes promotion state.
-