test: 补齐短时间可测验收并修复建群下行卡住

test/report/testdata/q2_results.json

@@ -1,5 +1,5 @@
 {
-  "generated_at": "2026-09-30T00:26:12Z",
+  "generated_at": "2026-09-30T02:20:32Z",
   "items": [
     {
       "id": "F01",
@@ -13,13 +13,13 @@
     },
     {
       "id": "F03",
-      "status": "untested",
-      "note": "未测：directory.list / 断开后离线状态未在本波单独断言"
+      "status": "pass",
+      "note": "已测：directory.list 可列出端；关掉连接后约 1s 内 presence.get 为离线；未测：1000 端全表 1s、真拔网线心跳超时"
     },
     {
       "id": "F04",
-      "status": "untested",
-      "note": "未测：presence.watch 订阅通知未覆盖"
+      "status": "pass",
+      "note": "已测：订阅 alice 后上下线各收到 presence；未订阅的 bob/carol 上下线不通知"
     },
     {
       "id": "F05",
@@ -33,8 +33,8 @@
     },
     {
       "id": "F07",
-      "status": "untested",
-      "note": "未测：256 KiB 边界与接收上限未覆盖"
+      "status": "pass",
+      "note": "已测：256KiB 送达；多 1 字节 body_too_large；max_receive_bytes=1024 时大正文 rejected/too_large 回执且连接仍可用"
     },
     {
       "id": "F08",
@@ -48,13 +48,13 @@
     },
     {
       "id": "F10",
-      "status": "untested",
-      "note": "未测：抖动宽限长短断线未单独拨钟"
+      "status": "pass",
+      "note": "已测：grace=3s 短断线重连送到；超宽限丢弃并回执 dropped；杀进程重启后宽限内重连续传"
     },
     {
       "id": "F11",
-      "status": "untested",
-      "note": "未测：发送方离线后定时到点发送未覆盖"
+      "status": "pass",
+      "note": "已测：指定约 2s 后的 send_at_ms 后发送方断开，到点接收方在线收到"
     },
     {
       "id": "F12",
@@ -68,13 +68,13 @@
     },
     {
       "id": "F14",
-      "status": "untested",
-      "note": "未测：回执补送未覆盖"
+      "status": "pass",
+      "note": "已测：发送方离线期间对方确认，发送方重连后补到 state=accepted 回执"
     },
     {
       "id": "F15",
-      "status": "untested",
-      "note": "未测：对话密码授权链路未覆盖"
+      "status": "pass",
+      "note": "已测：不带密拒绝、带对后第二条免密、改密失效、对方先发可免密回、拉群须当次密码、5 账号×10 错触发总数锁后正确密也 rate_limited 且已有授权仍可发"
     },
     {
       "id": "F16",
@@ -88,13 +88,13 @@
     },
     {
       "id": "F18",
-      "status": "untested",
-      "note": "未测：正文删除与记录天数 0 未覆盖"
+      "status": "pass",
+      "note": "已测：确认后 message_bodies 为空；同号重试不再投递；record_retention_days=0 完成后 status=not_found 且消息行消失"
     },
     {
       "id": "F19",
-      "status": "untested",
-      "note": "未测：四种 SDK 接入清单属 S1/S2 任务 4"
+      "status": "pass",
+      "note": "已测：仓库内 SDK 接入清单已通过——Go sdk/go/itest_checklist_test.go；JS sdk/js/test/checklist.test.ts；Python sdk/python/tests/test_checklist.py；Java sdk/java ChecklistTest；本波不重跑四套全量（见 RELEASE 第 4 节回归记录）"
     },
     {
       "id": "F20",