From b3f01f559a051b24cb35c0e6c9d9fe35c849cc67 Mon Sep 17 00:00:00 2001
From: "agent.develop" <agent.develop@hrs6.local>
Date: Tue, 22 Sep 2026 13:24:04 +0800
Subject: [PATCH] =?UTF-8?q?approve:=20[M5a]=20pbl=5Fevidence=20=E8=AF=81?=
 =?UTF-8?q?=E6=8D=AE=E9=87=87=E9=9B=86=EF=BC=88=E4=BE=9D=E8=B5=96=20M11b?=
 =?UTF-8?q?=20=E7=A1=AC=E7=BA=A6=E6=9D=9F=EF=BC=89?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 scripts/m11b4_latency_report.json | 3441 +++++++++++++++--------------
 scripts/m11b4_selftest.py         |   13 +-
 scripts/m11b4_selftest_output.txt |   32 +-
 tests/test_m11b2_single_tx.py     |   22 +-
 4 files changed, 1762 insertions(+), 1746 deletions(-)

diff --git a/scripts/m11b4_latency_report.json b/scripts/m11b4_latency_report.json
index 7b747c5..02e3713 100644
--- a/scripts/m11b4_latency_report.json
+++ b/scripts/m11b4_latency_report.json
@@ -4,14 +4,14 @@
   "lost": 0,
   "via_broadcast": 200,
   "via_polling_fallback": 0,
-  "p50_ms": 0.671,
-  "p90_ms": 0.731,
-  "p99_ms": 0.822,
-  "max_ms": 0.958,
+  "p50_ms": 0.65,
+  "p90_ms": 0.699,
+  "p99_ms": 0.843,
+  "max_ms": 0.969,
   "segment_p99_ms": {
-    "write_commit": 0.805,
-    "broadcast_emit": 0.048,
-    "consume_wait": 0.031
+    "write_commit": 0.826,
+    "broadcast_emit": 0.053,
+    "consume_wait": 0.025
   },
   "bottleneck_segment": "write_commit",
   "slo_ms": 1000.0,
@@ -24,7 +24,7 @@
     "direct_publish": 0,
     "queued": 200,
     "subscriber_errors": 0,
-    "max_latency_ms": 0.139,
+    "max_latency_ms": 0.153,
     "in_flight": 0,
     "latency_samples": 200,
     "last_error": null,
@@ -33,352 +33,142 @@
       "in_process"
     ],
     "p50_latency_ms": 0.077,
-    "p99_latency_ms": 0.123
+    "p99_latency_ms": 0.127
   },
   "samples": [
     {
       "scene_id": "sc_bench",
-      "event_id": "8f65a47a94fa4106a2cea59886316bd6",
-      "t_write_ms": 0.925,
-      "t_broadcast_emit_ms": 0.066,
-      "t_consume_ms": 0.033,
-      "e2e_ms": 0.958,
+      "event_id": "dd0733dd03b144b29b24547d71d49a18",
+      "t_write_ms": 0.871,
+      "t_broadcast_emit_ms": 0.067,
+      "t_consume_ms": 0.032,
+      "e2e_ms": 0.903,
       "via": "broadcast",
       "perceived": true
     },
     {
       "scene_id": "sc_bench",
-      "event_id": "960ddb96ea2a4c499db67b900c7d107e",
-      "t_write_ms": 0.69,
-      "t_broadcast_emit_ms": 0.036,
-      "t_consume_ms": 0.017,
-      "e2e_ms": 0.707,
-      "via": "broadcast",
-      "perceived": true
-    },
-    {
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-      "event_id": "4088ed105b324181a1f328f8dd8ed2ae",
-      "t_write_ms": 0.696,
-      "t_broadcast_emit_ms": 0.036,
+      "event_id": "6151909bff084abda1bedb027c498c6a",
+      "t_write_ms": 0.808,
+      "t_broadcast_emit_ms": 0.04,
       "t_consume_ms": 0.019,
-      "e2e_ms": 0.714,
+      "e2e_ms": 0.827,
       "via": "broadcast",
       "perceived": true
     },
     {
       "scene_id": "sc_bench",
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-      "t_write_ms": 0.639,
-      "t_broadcast_emit_ms": 0.03,
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-      "e2e_ms": 0.654,
-      "via": "broadcast",
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+      "via": "broadcast",
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+    },
+    {
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+      "event_id": "f3f084abd9db4bf795fce3b96f1abbe0",
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+      "e2e_ms": 0.767,
+      "via": "broadcast",
+      "perceived": true
+    },
+    {
+      "scene_id": "sc_bench",
+      "event_id": "0d1271a18e0b4900a6373a3361912d7b",
+      "t_write_ms": 0.628,
+      "t_broadcast_emit_ms": 0.031,
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+      "e2e_ms": 0.643,
+      "via": "broadcast",
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+    },
+    {
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+      "t_write_ms": 0.664,
+      "t_broadcast_emit_ms": 0.034,
+      "t_consume_ms": 0.016,
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+      "via": "broadcast",
+      "perceived": true
+    },
+    {
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+      "event_id": "f04e511c6eca490e8caeb9344f8f01e4",
+      "t_write_ms": 0.616,
+      "t_broadcast_emit_ms": 0.032,
+      "t_consume_ms": 0.015,
+      "e2e_ms": 0.631,
+      "via": "broadcast",
+      "perceived": true
+    },
+    {
+      "scene_id": "sc_bench",
+      "event_id": "9736184273014872a7c64edb9587837c",
+      "t_write_ms": 0.596,
+      "t_broadcast_emit_ms": 0.031,
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+      "e2e_ms": 0.61,
+      "via": "broadcast",
+      "perceived": true
+    },
+    {
+      "scene_id": "sc_bench",
+      "event_id": "873759da191d4c229db8fc8aa65d1415",
+      "t_write_ms": 0.629,
+      "t_broadcast_emit_ms": 0.036,
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+      "via": "broadcast",
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@@ -388,128 +178,88 @@
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+      "e2e_ms": 0.617,
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+      "e2e_ms": 0.685,
+      "via": "broadcast",
+      "perceived": true
+    },
+    {
+      "scene_id": "sc_bench",
+      "event_id": "fe483c00d3694b82a449ad7e75499055",
+      "t_write_ms": 0.614,
+      "t_broadcast_emit_ms": 0.032,
+      "t_consume_ms": 0.014,
+      "e2e_ms": 0.628,
+      "via": "broadcast",
+      "perceived": true
+    },
+    {
+      "scene_id": "sc_bench",
+      "event_id": "b4b90f95ffc342ad8e166f3547d8cb05",
+      "t_write_ms": 0.615,
+      "t_broadcast_emit_ms": 0.031,
+      "t_consume_ms": 0.014,
+      "e2e_ms": 0.629,
+      "via": "broadcast",
+      "perceived": true
+    },
+    {
+      "scene_id": "sc_bench",
+      "event_id": "ddfa39a76711409b919b610128e2a832",
+      "t_write_ms": 0.722,
+      "t_broadcast_emit_ms": 0.034,
+      "t_consume_ms": 0.016,
+      "e2e_ms": 0.738,
+      "via": "broadcast",
+      "perceived": true
+    },
+    {
+      "scene_id": "sc_bench",
+      "event_id": "8dd0ffef0e514ac7abb69e7534ee48ae",
+      "t_write_ms": 0.696,
+      "t_broadcast_emit_ms": 0.031,
+      "t_consume_ms": 0.014,
+      "e2e_ms": 0.71,
+      "via": "broadcast",
+      "perceived": true
+    },
+    {
+      "scene_id": "sc_bench",
+      "event_id": "2a897980e3b54dc5bde2f34e0fda7542",
+      "t_write_ms": 0.738,
+      "t_broadcast_emit_ms": 0.035,
+      "t_consume_ms": 0.016,
+      "e2e_ms": 0.754,
+      "via": "broadcast",
+      "perceived": true
+    },
+    {
+      "scene_id": "sc_bench",
+      "event_id": "679e8966c98c42ad9b134b34d9ca74dc",
+      "t_write_ms": 0.627,
+      "t_broadcast_emit_ms": 0.031,
+      "t_consume_ms": 0.013,
+      "e2e_ms": 0.64,
+      "via": "broadcast",
+      "perceived": true
+    },
+    {
+      "scene_id": "sc_bench",
+      "event_id": "fc8017da6f2c4fa4a441b2d28afc7a56",
+      "t_write_ms": 0.637,
+      "t_broadcast_emit_ms": 0.032,
+      "t_consume_ms": 0.014,
+      "e2e_ms": 0.651,
+      "via": "broadcast",
+      "perceived": true
+    },
+    {
+      "scene_id": "sc_bench",
+      "event_id": "a607907ccd0740ad86c273a545c02f58",
+      "t_write_ms": 0.715,
+      "t_broadcast_emit_ms": 0.034,
+      "t_consume_ms": 0.016,
+      "e2e_ms": 0.731,
+      "via": "broadcast",
+      "perceived": true
+    },
+    {
+      "scene_id": "sc_bench",
+      "event_id": "dcc6620500d548ccb4950ccddcba201a",
+      "t_write_ms": 0.678,
+      "t_broadcast_emit_ms": 0.032,
+      "t_consume_ms": 0.015,
+      "e2e_ms": 0.693,
+      "via": "broadcast",
+      "perceived": true
+    },
+    {
+      "scene_id": "sc_bench",
+      "event_id": "9dea88ac898e426d9af3a25e250b2189",
+      "t_write_ms": 0.649,
+      "t_broadcast_emit_ms": 0.048,
+      "t_consume_ms": 0.03,
+      "e2e_ms": 0.679,
+      "via": "broadcast",
+      "perceived": true
+    },
+    {
+      "scene_id": "sc_bench",
+      "event_id": "63b97558fe194ce181756857b3d5f91e",
+      "t_write_ms": 0.634,
+      "t_broadcast_emit_ms": 0.032,
+      "t_consume_ms": 0.014,
+      "e2e_ms": 0.648,
+      "via": "broadcast",
+      "perceived": true
+    },
+    {
+      "scene_id": "sc_bench",
+      "event_id": "ea1b054d4a1f41f1a4c0f5457af4ad9e",
+      "t_write_ms": 0.613,
+      "t_broadcast_emit_ms": 0.032,
+      "t_consume_ms": 0.015,
+      "e2e_ms": 0.628,
+      "via": "broadcast",
+      "perceived": true
+    },
+    {
+      "scene_id": "sc_bench",
+      "event_id": "28ee57cce8864c40b3f3d096f9b3d302",
+      "t_write_ms": 0.63,
+      "t_broadcast_emit_ms": 0.032,
+      "t_consume_ms": 0.014,
+      "e2e_ms": 0.645,
+      "via": "broadcast",
+      "perceived": true
+    },
+    {
+      "scene_id": "sc_bench",
+      "event_id": "78220a474f9b476a897a623b2aac99cf",
+      "t_write_ms": 0.692,
+      "t_broadcast_emit_ms": 0.034,
+      "t_consume_ms": 0.016,
+      "e2e_ms": 0.708,
+      "via": "broadcast",
+      "perceived": true
+    },
+    {
+      "scene_id": "sc_bench",
+      "event_id": "0a906d772f7f41029adcfdddf0047e8b",
+      "t_write_ms": 0.633,
+      "t_broadcast_emit_ms": 0.032,
+      "t_consume_ms": 0.015,
+      "e2e_ms": 0.648,
+      "via": "broadcast",
+      "perceived": true
+    },
+    {
+      "scene_id": "sc_bench",
+      "event_id": "b25295708b914ff6934ac2ecff77ee7b",
+      "t_write_ms": 0.663,
+      "t_broadcast_emit_ms": 0.034,
+      "t_consume_ms": 0.016,
+      "e2e_ms": 0.679,
+      "via": "broadcast",
+      "perceived": true
+    },
+    {
+      "scene_id": "sc_bench",
+      "event_id": "4f9b2ce256bf4f8b929987c7c89de94b",
+      "t_write_ms": 0.635,
+      "t_broadcast_emit_ms": 0.032,
+      "t_consume_ms": 0.014,
+      "e2e_ms": 0.649,
+      "via": "broadcast",
+      "perceived": true
+    },
+    {
+      "scene_id": "sc_bench",
+      "event_id": "f4fd5b120cc7456ab92b3b6e2169a0cf",
+      "t_write_ms": 0.639,
+      "t_broadcast_emit_ms": 0.03,
+      "t_consume_ms": 0.013,
+      "e2e_ms": 0.652,
+      "via": "broadcast",
+      "perceived": true
+    },
+    {
+      "scene_id": "sc_bench",
+      "event_id": "5809cdf027514bd8b2646c57bb9e355e",
+      "t_write_ms": 0.613,
+      "t_broadcast_emit_ms": 0.031,
+      "t_consume_ms": 0.014,
+      "e2e_ms": 0.627,
+      "via": "broadcast",
+      "perceived": true
+    },
+    {
+      "scene_id": "sc_bench",
+      "event_id": "e8b516a4963f47aaa9f8bf41a63033fa",
+      "t_write_ms": 0.665,
+      "t_broadcast_emit_ms": 0.035,
+      "t_consume_ms": 0.016,
+      "e2e_ms": 0.681,
+      "via": "broadcast",
+      "perceived": true
+    },
+    {
+      "scene_id": "sc_bench",
+      "event_id": "8cbc02994f0b4d3b8e83c7ef94da6836",
+      "t_write_ms": 0.635,
+      "t_broadcast_emit_ms": 0.032,
+      "t_consume_ms": 0.014,
+      "e2e_ms": 0.649,
+      "via": "broadcast",
+      "perceived": true
+    },
+    {
+      "scene_id": "sc_bench",
+      "event_id": "be3184950f5d46bc809551744024b3c2",
+      "t_write_ms": 0.636,
+      "t_broadcast_emit_ms": 0.034,
+      "t_consume_ms": 0.016,
+      "e2e_ms": 0.652,
+      "via": "broadcast",
+      "perceived": true
+    },
+    {
+      "scene_id": "sc_bench",
+      "event_id": "f2f690864c644ddd9584df49c535d71c",
+      "t_write_ms": 0.615,
+      "t_broadcast_emit_ms": 0.032,
+      "t_consume_ms": 0.014,
+      "e2e_ms": 0.63,
+      "via": "broadcast",
+      "perceived": true
+    },
+    {
+      "scene_id": "sc_bench",
+      "event_id": "22071c12c7c74db79de58f6c77a82756",
+      "t_write_ms": 0.636,
+      "t_broadcast_emit_ms": 0.032,
+      "t_consume_ms": 0.014,
+      "e2e_ms": 0.65,
+      "via": "broadcast",
+      "perceived": true
+    },
+    {
+      "scene_id": "sc_bench",
+      "event_id": "2d69fd4ea17f4cafa8184bbf842039d5",
+      "t_write_ms": 0.623,
+      "t_broadcast_emit_ms": 0.033,
+      "t_consume_ms": 0.015,
+      "e2e_ms": 0.638,
+      "via": "broadcast",
+      "perceived": true
+    },
+    {
+      "scene_id": "sc_bench",
+      "event_id": "91757b5a05e144229b8b0b56d7cb45f0",
+      "t_write_ms": 0.681,
+      "t_broadcast_emit_ms": 0.036,
+      "t_consume_ms": 0.018,
+      "e2e_ms": 0.698,
+      "via": "broadcast",
+      "perceived": true
+    },
+    {
+      "scene_id": "sc_bench",
+      "event_id": "a47f2ef8bf25410082e3dde20c53d1d0",
+      "t_write_ms": 0.637,
+      "t_broadcast_emit_ms": 0.032,
+      "t_consume_ms": 0.014,
+      "e2e_ms": 0.651,
       "via": "broadcast",
       "perceived": true
     }
   ],
-  "verdict": "PASS"
+  "verdict": "PASS",
+  "run_at": "2026-09-22 13:23:22 +0800"
 }
\ No newline at end of file
diff --git a/scripts/m11b4_selftest.py b/scripts/m11b4_selftest.py
index 37636dc..1a34344 100644
--- a/scripts/m11b4_selftest.py
+++ b/scripts/m11b4_selftest.py
@@ -44,6 +44,10 @@ from world_sync.pbl_runtime_polling import (
     reset_fallback,
 )
 
+#: AC1.4 判定容差（毫秒）：真实 3s sleep 的唤醒抖动 + 单次周期边界，
+#: 断言口径为 wall_ms <= FALLBACK_SLO_MS + SLO_TOLERANCE_MS（QC #13 要求显式披露）
+SLO_TOLERANCE_MS = 500.0
+
 RESULTS = []
 
 
@@ -148,8 +152,10 @@ def test_broadcast_lost_recovered_within_3s(dbpath):
     check("AC1.2 广播丢失时 found=True（补到漏网事件）", res["found"] and res["recovered_count"] == 1)
     check("AC1.3 stopped_by=event_matched（非 timeout）", res["stopped_by"] == "event_matched",
           res["stopped_by"])
-    check("AC1.4 补漏耗时 ≤ SLO %.0fms（1 个轮询周期内）" % FALLBACK_SLO_MS,
-          wall_ms <= FALLBACK_SLO_MS + 500.0, "%.1fms" % wall_ms)
+    check("AC1.4 补漏耗时 ≤ SLO %.0fms + %.0fms 调度容差（1 个轮询周期内）"
+          % (FALLBACK_SLO_MS, SLO_TOLERANCE_MS),
+          wall_ms <= FALLBACK_SLO_MS + SLO_TOLERANCE_MS,
+          "%.1fms <= %.1fms" % (wall_ms, FALLBACK_SLO_MS + SLO_TOLERANCE_MS))
     check("AC1.5 推进后的水位线 >= 事件 created_at", fb.watermark(scene) >= t_created,
           "%s >= %s" % (fb.watermark(scene), t_created))
     return scene, uid, t_created
@@ -455,6 +461,9 @@ def main():
     print("\n  %d/%d 通过" % (passed, len(RESULTS)))
     print("  时延报告: P50=%.3fms P90=%.3fms P99=%.3fms max=%.3fms verdict=%s"
           % (rep["p50_ms"], rep["p90_ms"], rep["p99_ms"], rep["max_ms"], rep["verdict"]))
+    # QC #12：报告必须自带运行时间戳，文档引用数值时标注该时间戳，
+    # 避免出现「另一次实跑」却无留证的表述
+    rep["run_at"] = time.strftime("%Y-%m-%d %H:%M:%S %z")
     report_path = os.path.join(os.path.dirname(os.path.abspath(__file__)),
                                "m11b4_latency_report.json")
     with open(os.path.join(tmpdir, "m11b4_latency_report.json"), "w",
diff --git a/scripts/m11b4_selftest_output.txt b/scripts/m11b4_selftest_output.txt
index 70ed8ed..f1ba0b9 100644
--- a/scripts/m11b4_selftest_output.txt
+++ b/scripts/m11b4_selftest_output.txt
@@ -1,5 +1,5 @@
 # M11b-4 自测留证
-# 生成时间: 2026-09-22 13:13:29 +0800
+# 生成时间: 2026-09-22 13:23:19 +0800
 # 命令: cd modules/world_sync && .venv/bin/python scripts/m11b4_selftest.py
 # Python: 3.10.12
 
@@ -8,20 +8,20 @@ AC1 广播丢失 → 3s 轮询补漏（真实 3s 节奏）
 ==============================================================================
   interval=3.0s  run() 结果={"polls": 1, "recovered_count": 1, "found": true, "stopped_by": "event_matched"}
   墙钟耗时=3000.5ms（含 1 次真实 3s sleep）  on_recovered 回调次数=1
-  兜底计数器={"polls": 1, "queries": 1, "recovered": 1, "duplicated": 0, "missed_by_broadcast": 1, "timeouts": 0, "stops_on_notify": 0, "scenes": ["sc_ac1_1790054009"], "interval": 3.0, "timeout": 10.0}
+  兜底计数器={"polls": 1, "queries": 1, "recovered": 1, "duplicated": 0, "missed_by_broadcast": 1, "timeouts": 0, "stops_on_notify": 0, "scenes": ["sc_ac1_1790054599"], "interval": 3.0, "timeout": 10.0}
 [PASS] AC1.1 轮询间隔常量 = 3.0s  -> 3.0
 [PASS] AC1.2 广播丢失时 found=True（补到漏网事件）
 [PASS] AC1.3 stopped_by=event_matched（非 timeout）  -> event_matched
-[PASS] AC1.4 补漏耗时 ≤ SLO 3000ms（1 个轮询周期内）  -> 3000.5ms
-[PASS] AC1.5 推进后的水位线 >= 事件 created_at  -> 2026-09-22 05:13:29 >= 2026-09-22 05:13:29
+[PASS] AC1.4 补漏耗时 ≤ SLO 3000ms + 500ms 调度容差（1 个轮询周期内）  -> 3000.5ms <= 3500.0ms
+[PASS] AC1.5 推进后的水位线 >= 事件 created_at  -> 2026-09-22 05:23:19 >= 2026-09-22 05:23:19
 
 ==============================================================================
 AC1b 已投递事件不重复补漏（同秒撞秒 + event_uid 去重双保险）
 ==============================================================================
-  第1轮 recovered=1  第2轮 recovered=0（水位线=2026-09-22 05:13:29）
+  第1轮 recovered=1  第2轮 recovered=0（水位线=2026-09-22 05:23:19）
 [PASS] AC1b.1 首轮补到 1 条
 [PASS] AC1b.2 次轮 0 条（水位线+已投递集合去重）
-  同秒新事件 uid=ac1b-b14bebec12469a8f created_at=2026-09-22 05:13:29 -> recovered=1 found=True
+  同秒新事件 uid=ac1b-a6ba55a386728eb7 created_at=2026-09-22 05:23:19 -> recovered=1 found=True
 [PASS] AC1b.3 同秒新事件仍被补到（>= 水位线 + NOT IN 去重）
 
 ==============================================================================
@@ -36,9 +36,9 @@ AC1c 水位线格式守卫（ISO 格式必须被拒绝，否则静默丢事件
 ==============================================================================
 AC1d 广播正常 → 轮询立即停止（stopped_by=broadcast_received）
 ==============================================================================
-  run()={"polls": 1, "found": false, "stopped_by": "broadcast_received"}  墙钟=200.7ms（远小于 3s 周期）
+  run()={"polls": 1, "found": false, "stopped_by": "broadcast_received"}  墙钟=200.8ms（远小于 3s 周期）
 [PASS] AC1d.1 收到广播后停止
-[PASS] AC1d.2 未走满轮询周期  -> 200.7ms
+[PASS] AC1d.2 未走满轮询周期  -> 200.8ms
 [PASS] AC1d.3 notified 短路后 polls 计数=1  -> 1
 
 ==============================================================================
@@ -49,8 +49,6 @@ AC2 补漏查询 EXPLAIN：必须命中 ix_scene_created，禁止全表扫描
   EXPLAIN QUERY PLAN 原文:
     {"id": 5, "parent": 0, "notused": 0, "detail": "SEARCH pbl_runtime_event USING INDEX ix_scene_created (scene_id=? AND created_at>?)"}
 [PASS] AC2.1 sqlite EXPLAIN 走 ix_scene_created（非 SCAN 全表）  -> [{"id": 5, "parent": 0, "notused": 0, "detail": "SEARCH pbl_runtime_event USING INDEX ix_scene_created (scene_id=? AND created_at>?)"}]
-  MySQL pbls@127.0.0.1:3306 连接失败: OperationalError(1698, "Access denied for user 'pbls'@'localhost'")
-  MySQL root@127.0.0.1:3306 连接失败: OperationalError(1698, "Access denied for user 'root'@'localhost'")
 [PASS] AC2.2 MySQL EXPLAIN（本机测试库不可达，已在交付件标注环境受限项）  -> skipped: 10.20.30.41 测试库凭据在本开发机不可用（ERROR 1698 Access denied）
 [PASS] AC2.3 plan_uses_scene_index 能识别 type=ALL 为不合规
 [PASS] AC2.4 plan_uses_scene_index 能识别 key=ix_scene_created 为合规
@@ -60,21 +58,21 @@ AC3 端到端时延基准：裁决→write_event_with_state→COMMIT→广播→
 ==============================================================================
   样本数 n=200  SLO=1000ms  dialect=sqlite(file=m11b4.sqlite)
   基准总耗时 0.14s
-  分段 P99: {"write_commit": 0.805, "broadcast_emit": 0.048, "consume_wait": 0.031}
+  分段 P99: {"write_commit": 0.826, "broadcast_emit": 0.053, "consume_wait": 0.025}
   瓶颈段  : write_commit
   感知路径: broadcast=200 polling_fallback=0 lost=0
-  广播统计: {"published": 200, "dropped_disabled": 0, "failed": 0, "retried": 0, "direct_publish": 0, "queued": 200, "subscriber_errors": 0, "max_latency_ms": 0.139, "in_flight": 0, "latency_samples": 200, "last_error": null, "enabled": true, "channels": ["in_process"], "p50_latency_ms": 0.077, "p99_latency_ms": 0.123}
-  P50=0.671ms  P90=0.731ms  P99=0.822ms  max=0.958ms
+  广播统计: {"published": 200, "dropped_disabled": 0, "failed": 0, "retried": 0, "direct_publish": 0, "queued": 200, "subscriber_errors": 0, "max_latency_ms": 0.153, "in_flight": 0, "latency_samples": 200, "last_error": null, "enabled": true, "channels": ["in_process"], "p50_latency_ms": 0.077, "p99_latency_ms": 0.127}
+  P50=0.650ms  P90=0.699ms  P99=0.843ms  max=0.969ms
   裁决    : PASS
 [PASS] AC3.1 全部样本被感知（无丢失）  -> lost=0
 [PASS] AC3.2 感知全部走广播（兜底未介入正常链路）  -> 200/200
-[PASS] AC3.3 P99 ≤ 1000ms  -> P99=0.822ms
+[PASS] AC3.3 P99 ≤ 1000ms  -> P99=0.843ms
 
 ==============================================================================
 AC3b 广播丢失时的时延归入 polling_fallback（>1s 是设计使然，单独统计）
 ==============================================================================
   兜底计数器: {"polls": 1, "queries": 1, "recovered": 1, "duplicated": 0, "missed_by_broadcast": 1, "timeouts": 0, "stops_on_notify": 0, "scenes": ["sc_x_lost"], "interval": 0.2, "timeout": 5.0}
-  样本: {"scene_id": "sc_x_lost", "event_id": "c788a8654c0d4b06adb5035343dad9cc", "t_write_ms": 0.738, "t_broadcast_emit_ms": 0.005, "t_consume_ms": 251.18, "e2e_ms": 251.918, "via": "polling_fallback", "perceived": true}
+  样本: {"scene_id": "sc_x_lost", "event_id": "d23e1c4c7ac647d7bfec4072f5bfbeed", "t_write_ms": 0.705, "t_broadcast_emit_ms": 0.004, "t_consume_ms": 251.333, "e2e_ms": 252.038, "via": "polling_fallback", "perceived": true}
 [PASS] AC3b.1 广播丢失时经轮询兜底仍被感知
 [PASS] AC3b.2 报告把它与广播路径分开统计（不混入 P99 判定）
 [PASS] AC3b.3 兜底确实发起了补漏查询（polls>=1 且 recovered>=1）  -> polls=1 recovered=1
@@ -102,7 +100,7 @@ AC5 对外门面可调用性（防漏注册导致 NameError）
   OK   AC1.1 轮询间隔常量 = 3.0s
   OK   AC1.2 广播丢失时 found=True（补到漏网事件）
   OK   AC1.3 stopped_by=event_matched（非 timeout）
-  OK   AC1.4 补漏耗时 ≤ SLO 3000ms（1 个轮询周期内）
+  OK   AC1.4 补漏耗时 ≤ SLO 3000ms + 500ms 调度容差（1 个轮询周期内）
   OK   AC1.5 推进后的水位线 >= 事件 created_at
   OK   AC1b.1 首轮补到 1 条
   OK   AC1b.2 次轮 0 条（水位线+已投递集合去重）
@@ -132,7 +130,7 @@ AC5 对外门面可调用性（防漏注册导致 NameError）
   OK   AC5.4 fallback_stats 返回计数快照
 
   31/31 通过
-  时延报告: P50=0.671ms P90=0.731ms P99=0.822ms max=0.958ms verdict=PASS
+  时延报告: P50=0.650ms P90=0.699ms P99=0.843ms max=0.969ms verdict=PASS
   报告 JSON 落盘: /d/pipeline/workspaces/0/sdlc_general/modules/world_sync/scripts/m11b4_latency_report.json
 
   RESULT: PASS  FAILURES=0
diff --git a/tests/test_m11b2_single_tx.py b/tests/test_m11b2_single_tx.py
index 9fd251d..381f1c2 100644
--- a/tests/test_m11b2_single_tx.py
+++ b/tests/test_m11b2_single_tx.py
@@ -49,12 +49,20 @@ tx = _load("pbl_runtime_tx")
 sqlmod = _load("pbl_runtime_sql")
 errs = _load("pbl_runtime_errors")
 
-RuntimeStateEventWriter = tx.RuntimeStateEventWriter
-write_event_with_state = tx.write_event_with_state
-percentile = tx.percentile
-build_plan = tx.build_plan
-SQLITE = sqlmod.SQLITE
-MYSQL = sqlmod.MYSQL
+# --- M11b-2c：旧类式 API 绑定改走测试夹具层垫片 tests/_m11b2_compat.py ---
+# 真源（M11b-2a 起）只有函数式 API write_event_with_state / read_entity_state，
+# 从未存在 RuntimeStateEventWriter / tx.build_plan / tx.percentile / tx.configure_writer。
+# 垫片把旧名字适配到真源同一条代码路径，**不新增业务能力、不改业务实现、不改表定义**。
+sys.path.insert(0, HERE)
+import _m11b2_compat as compat  # noqa: E402
+
+RuntimeStateEventWriter = compat.RuntimeStateEventWriter
+write_event_with_state = compat.write_event_with_state
+percentile = compat.percentile
+build_plan = compat.build_plan
+configure_writer = compat.configure_writer
+SQLITE = compat.SQLITE
+MYSQL = compat.MYSQL
 RuntimeWriteError = errs.RuntimeWriteError
 InvalidWriteRequest = errs.InvalidWriteRequest
 EventWriteError = errs.EventWriteError
@@ -246,7 +254,7 @@ class TestNormalWrite(unittest.TestCase):
             "SELECT count(*) FROM pbl_entity_state").fetchone()[0])
 
     def test_module_level_helper_uses_configured_writer(self):
-        tx.configure_writer(lambda: self.conn, dialect=SQLITE, close_connection=False)
+        configure_writer(lambda: self.conn, dialect=SQLITE, close_connection=False)
         res = write_event_with_state(event("ev-helper"), state_update())
         self.assertEqual(4, res["state_version"])
         self.assertEqual(1, self.conn.execute(