PASS   device_upsert returns id  ({"id":"selftest_2228bd9d","first_seen":1792395759,"ip_first":"127.0.0.1","cmd_count":0,"model":"Selftest","opr":"?","sdk":"?","batt":"?","app":"?","last_ip":"127.0.0.1","last_seen":1792395759,"online":true})
PASS   first rid is 1  (got 1)
PASS   rids increment  (got 1,2,3)
PASS   depth is 3  (depth=3)
PASS   pop FIFO order  (order: ping -> info -> sms_inbox)
PASS   pop 1 keeps arg  (arg=arg-value)
PASS   queue empty after 3 pops  (expected null)
PASS   result_get round trip  ({"rid":3,"ok":true,"out":"hello world\nline two","ts":1792395759})
PASS   panel_key has length  (48 chars)
PASS   json response shape  ({"rid":3,"cmd":"sms_inbox","arg":"arg-value"})

SELFTEST PASS