The JSON segment preview was a fixed "[JSON]" placeholder, hiding both
real card titles and QQ's server-side fallback prompts (e.g. cardId
-896954183 "当前QQ版本不支持此应用,请升级", which is what #96 reported
seeing). Best-effort extract a title from the common ARK fields —
meta.{detail_1,detail,news,mannounce,music,video}.title, single-section
meta, then root.prompt / root.desc — and render as "[卡片:...]"; fall
back to "[JSON]" on parse failure or an unrecognised schema. Title is
truncated at 30 chars so a long prompt cannot blow up the log line.
OneBot segment shape is unchanged: downstream consumers still get the
full payload at data.data; this is purely a log-preview readability fix.
The helper is pure best-effort and never throws — every failure path
falls through to the existing "[JSON]" output.
DrSmoothl
e9ae2ec751