chore: freeze learning transfer target attestation

.codestable/work/epic-cs-continuous-learning-lifecycle.md

@@ -3,7 +3,7 @@ epic: ../epics/cs-continuous-learning-lifecycle.md
 phase: executing
 approved_revision: 4b0b8e8e0596e7ee42611864843512ecd9402970bb3682b5605f0dc0f8dcf01a
 current_item: LEARN-3
-next_action: publish the reviewed nested Seatbelt metadata fix, then rerun target probes for the new source
+next_action: commit and publish the frozen target attestation, then run k=2 calibration with a new output identity
 blocked_by: null
 item_progression: continuous
 milestone_commit: authorized
@@ -239,3 +239,6 @@ remote_publish: each-milestone
 - nested Seatbelt fresh re-review：Opus Paseo `ab6f7611-adff-41dd-9801-4627652eb65e`，冻结 patch
   `87122d76...cb327`、tree `69a55202...e3333`；`0 blocking / 0 important / 7 nit`，结论可合。两条
   important 均经独立 `/bin/sh + sandbox-exec` 对照闭合，且未执行 real CLI、target probe 或模型调用。
+- nested Seatbelt milestone `652949c08d42ee099be404cdc9e6914a69b5439b` 已发布。提交后的官方双 target
+  probe 通过：`claude-haiku` 与 `codex-terra` 的 cell write、host/sibling read block、host write block、
+  config unchanged、runtime removed 六项均为 true；输出只含闭集布尔 attestation，无 prompt、回答或凭证。

experiments/cs-learning-transfer-001/freeze.json

@@ -1,14 +1,39 @@
 {
   "schema_version": 1,
-  "state": "prepared-awaiting-commit",
+  "state": "frozen",
   "prepared_on": "2026-08-02",
   "hash_algorithm": "sha256",
-  "source_commit": "pending",
-  "real_llm_runs_started": false,
+  "source_commit": "652949c08d42ee099be404cdc9e6914a69b5439b",
+  "real_llm_runs_started": true,
   "model_target_probe": {
-    "status": "pending",
-    "source_commit": "pending",
-    "targets": []
+    "status": "passed",
+    "source_commit": "652949c08d42ee099be404cdc9e6914a69b5439b",
+    "targets": [
+      {
+        "cell_write": true,
+        "family": "claude",
+        "harness": "claude-headless",
+        "host_config_unchanged": true,
+        "host_read_blocked": true,
+        "host_write_blocked": true,
+        "id": "claude-haiku",
+        "model": "claude-haiku-4-5",
+        "runtime_removed": true,
+        "sibling_read_blocked": true
+      },
+      {
+        "cell_write": true,
+        "family": "codex",
+        "harness": "codex-cli",
+        "host_config_unchanged": true,
+        "host_read_blocked": true,
+        "host_write_blocked": true,
+        "id": "codex-terra",
+        "model": "gpt-5.6-terra",
+        "runtime_removed": true,
+        "sibling_read_blocked": true
+      }
+    ]
   },
   "primary_metric": {
     "name": "overall_paired_hidden_pass_delta",