fix: SerialMate v0.1.1 接收路径修复——时间戳改 link 线程到达时刻打戳、接收日志批量插入+5000行上限+积压折叠、通道配置缓存；自测扩至 selftest_gui 69 项，新增 ISSUE 报告与 _sim_periodic 复现脚本；重打包

SerialMate/src/_sim_periodic.py

@@ -0,0 +1,49 @@
+"""模拟真机 M2S100 场景: 设备 100ms 周期上报 30 帧, 验证帧按帧粒度
+到达 GUI 回调(间隔≈100ms, 到达→消费延迟<300ms), 而非攒批后一次涌入。
+"""
+import os
+import sys
+import time
+import threading
+
+sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
+from link import SerialLink
+import protocol as d
+
+got = []
+cfg = d.ProtoConfig()
+link = SerialLink(cfg, on_status=lambda s, ts: None)
+link.on_frame = lambda fr, ts: got.append((time.time(), ts))
+
+link.open('loop://', 115200)
+deadline = time.time() + 5
+while time.time() < deadline and not link.is_connected():
+    time.sleep(0.05)
+assert link.is_connected(), 'loop:// 未连接'
+
+resp = bytes.fromhex('B5 F0 08 6F 6B 54 4C 3A 32 34 36 48')
+
+def feeder():
+    for _ in range(30):
+        link.ser.write(resp)
+        time.sleep(0.1)
+
+t = threading.Thread(target=feeder)
+t.start()
+t.join()
+time.sleep(0.5)                     # 等最后一帧走完读线程
+
+n = len(got)
+print('收到帧数:', n, '(期望 30)')
+if n >= 2:
+    gaps = [b[0] - a[0] for a, b in zip(got, got[1:])]
+    lag = [cb - ts for cb, ts in got]
+    print('回调间隔 min/max/avg(ms): %d / %d / %d'
+          % (min(gaps) * 1000, max(gaps) * 1000, sum(gaps) / len(gaps) * 1000))
+    print('到达→消费延迟 max(ms):', round(max(lag) * 1000))
+    ok = n == 30 and max(gaps) < 0.5 and max(lag) < 0.3
+else:
+    ok = False
+print('RESULT:', 'PASS' if ok else 'FAIL')
+link.close()
+sys.exit(0 if ok else 1)