Refresh the cap48 checkpoint now that hybrid reached evaluation

Update the handoff and changelog with the newer cap48 runtime milestone so later sessions know the run has advanced from build-index into capped evaluation.

Constraint: No measured cap48 score is available yet, only a later execution milestone
Rejected: Leave the older build-index note in place | Would make the restart handoff stale and less actionable
Confidence: high
Scope-risk: narrow
Directive: Replace the cap48 runtime note with hybrid scores as soon as eval.json lands
Tested: Verified active cap48 evaluate.py process; verified docs now record cap48 current phase as evaluate.py --max-queries 24
Not-tested: cap48 strategy scores because hybrid eval.json has not landed yet

@@ -17,7 +17,7 @@
 - 当前 first lane 为：
   - `hybrid`
 - 当前已进入：
-  - `run_demo.py build-index --resume --checkpoint-every-refs 100`
+  - `evaluate.py --data /tmp/ab_smoke_seg_cap48_top2/hybrid/fma/manifests ... --max-queries 24`
 - `report.json` 尚未落盘
 
 结论：

@@ -486,7 +486,7 @@ cd /workspace/acr-engine
 | `subset_size` | `48` |
 | `max_test_queries` | `24` |
 | 首个运行策略 | `hybrid` |
-| 当前阶段 | `run_demo.py build-index --resume --checkpoint-every-refs 100` |
+| 当前阶段 | `evaluate.py --max-queries 24` |
 | `report.json` | 尚未生成 |
 
 恢复检查命令：