新增 Python 串口助手 serial_tool（常驻 daemon+全量日志文件即接口）取代 serial-mcp-server：@test 采集链改写 + 全库文档迁移

test/verify_log.ps1

@@ -1,9 +1,9 @@
 <#
 verify_log.ps1 - Check a captured MCU debug log against boot/test markers.
 
-Used by the @test loop: after flashing, the fresh boot log is captured to a
-file (serial-mcp-server capture), then this script greps it and prints a
-structured verdict.
+Used by the @test loop: after flashing, the fresh boot log is extracted from
+the serial assistant log (tools/serial_tool), then this script greps it and
+prints a structured verdict.
 
 Usage:
   powershell -ExecutionPolicy Bypass -File verify_log.ps1 `