Acceptance Criteria
===================

	* PCB quality per IPC‑A‑600 (class 2)
	* Solder joints/assemblies per IPC‑A‑610 (class 1)
	* No shorts/opens; current consumption within spec ± tolerance
	* Programming successful (verify OK), correct FW version, proper SN/parameters
	* FCT: All tests within limits; no open issues/warnings
	* Visible inspections: No scratches and finger prints on PCB, no crooked labels