nx_iot_local_kasa_test.nx

nx_iot_local_kasa_test.nx -- gate for the TP-Link Kasa LAN driver. SOVEREIGN proof (this is a NON-NOVEL protocol; the matching 3rd-party python-kasa KAT cross-check runs in the harness later, never here): - autokey hand-derived KAT: encrypt "{}" -> [0xD0, 0xAD] (0x7B^0xAB=0xD0, then 0x7D^0xD0=0xAD -- derivable from the spec) - autokey round-trip identity over a real command - TCP frame: 4-byte BE length round-trip + decrypt recovers payload - capability builders carry hue/saturation/brightness/color_temp - reply classifier marker detection - negative controls: BUF_TOO_SMALL + BAD_LEN expect_exit: 0 license_tier: ORIGINAL