Correct active intervention engine provenance

docs/active-intervention-v0-protocol-20260715.md

@@ -41,9 +41,10 @@ the six decisions are complete exact-workload pairs.
 
 - Host: `dash0`, 8 NVIDIA H20 GPUs available; each TP4 server runs alone on
   GPUs 0-3.  Co-location is prohibited for SLO verdicts.
-- Engine: patched vLLM `0.24.1.dev3+opprof` from
-  `/home/admin/cpfs/wjh/vllm-opprof-phase3` in
-  `/tmp/wjh/venvs/vllm-0.20.0-cu129`.
+- Engine: patched vLLM `0.24.1.dev3+g668cfb7e2` from clean source commit
+  `4b253fd8619764b6971a7f2e3a3aa7545f6ace05` at
+  `/home/admin/cpfs/wjh/opprof-phase2-dash0-20260711/vllm-v0.24.0`, using
+  `/tmp/wjh-opprof-phase2-dash0-20260711/.venv`.
 - Model: `/home/admin/cpfs/wjh/models/Qwen/Qwen3-30B-A3B`, BF16.
 - Workload: unseen `chat_w20260313_1000`; input 0-8192; output exactly 128;
   replay scale 0.5; 300-second arrival window.
@@ -127,3 +128,9 @@ use the same measured config costs and differ only in source information.
 If the 10% trigger fails, this route is closed for the current engine-state
 representation.  The experimental control plane is not retained as a fallback
 research contribution.
+
+Pre-run provenance amendment: the first controller dry-run on 2026-07-15
+rejected two stale engine paths before starting a server.  The paths and exact
+runtime version above were recovered from the accepted trace-12 campaign and
+corrected before any trace-13 GPU work.  No scientific treatment or gate was
+changed.

runs/active-intervention-v0/prepare_prospective.py

@@ -28,6 +28,7 @@ REPLAY_TIME_SCALE = 0.5
 OFFERED_RATE_PER_GPU = 2.75
 TARGET_COUNT = round(OFFERED_RATE_PER_GPU * DURATION_S * TP)
 WINDOW_ID = "chat_w20260313_1000"
+ENGINE_VERSION = "0.24.1.dev3+g668cfb7e2"
 
 
 def atomic_json(path: Path, payload: Any) -> None:
@@ -140,7 +141,7 @@ def materialize_study(
     payload = json.loads(base_study.read_text(encoding="utf-8"))
     payload["study_id"] = f"active-intervention-trace13-rep{repetition}"
     payload["hardware"]["host_candidates"] = ["dash0"]
-    payload["engine"]["engine_version"] = "0.24.1.dev3+opprof"
+    payload["engine"]["engine_version"] = ENGINE_VERSION
     trace = payload["trace"]
     trace.update(
         {