Preserve proof that cap64 advanced into evaluation before results landed

Constraint: The cap64 run is still active, so this checkpoint can only record stage completion evidence rather than final benchmark conclusions
Rejected: Wait for eval.json or report.json before committing | Would lose the verified handoff that indexing finished and evaluate.py is now running
Confidence: high
Scope-risk: narrow
Directive: Keep stage checkpoints explicit—training complete, index complete, evaluation running, report complete—until cap64 fully settles
Tested: Verified reference_progress.json shows 64 refs, 657 windows, and complete status; verified active process is evaluate.py on /tmp/ab_smoke_seg_cap64_top2/high_energy/fma/manifests; verified high_energy eval.json and report.json are still absent
Not-tested: Final cap64 high_energy metrics, hybrid branch execution, and post-cap64 strategy guidance

+## 2026-06-02 cap64 索引完成并进入评测 checkpoint
+
+完成项：
+- 已确认 cap64 的 `high_energy` reference index 构建完成。
+- 已确认流程从 `build-index` 推进到 `evaluate.py`。
+
+验证证据：
+- `reference_progress.json`：
+  - `status=complete`
+  - `refs_done=64`
+  - `windows_done=657`
+  - `embedding_shape=[657, 192]`
+  - `elapsed_sec=108.986`
+- 进程树显示：
+  - `evaluate.py --data /tmp/ab_smoke_seg_cap64_top2/high_energy/fma/manifests ... --seed 42 --max-queries 32`
+- 截至本 checkpoint：
+  - `report.json` 仍未生成
+
 ## 2026-06-02 cap64 训练完成证据 checkpoint
 
 完成项：

@@ -66,3 +66,5 @@ cd /workspace/acr-engine
 - 已补齐 `seed=999` 最终结果，并完成 cap48 三 seed aggregate 归纳。
 
 - 已记录 cap64 benchmark 已启动，并确认进入 `high_energy` 训练阶段。
+
+- 已补充 cap64 新鲜证据：`high_energy` 索引完成（`64 refs / 657 windows / 192-d`）并进入 `evaluate.py`。

@@ -60,5 +60,5 @@ test -f /tmp/ab_smoke_seg_cap48_top2_seed999/report.json && cat /tmp/ab_smoke_se
 ## 下一轮已启动
 
 - 新 benchmark：`/tmp/ab_smoke_seg_cap64_top2`
-- 当前阶段：`high_energy` 训练已完成，现处于 build-index 中
+- 当前阶段：`high_energy` 索引已完成，现处于 evaluate 中
 - 下一 session 应优先检查 `report.json` 是否生成

@@ -675,6 +675,6 @@ seed123 最终结论：
 - 已启动：`/tmp/ab_smoke_seg_cap64_top2`
 - 配置：`subset_size=64`, `max_test_queries=32`, `seed=42`
 - 当前最新证据：
-  - 已从运行会话确认 `high_energy` 的 `Epoch 1/1` 完整跑完（`32/32`）
-  - 当前处于 `run_demo.py build-index`，尚未产出最终 `report.json`
+  - `high_energy` reference index 已完成：`64 refs / 657 windows / 192-d`
+  - 当前已进入 `evaluate.py`，尚未产出最终 `report.json`