[bricke]

Summary

• Documents the gotcha where bacaro_get returns BACARO_ENOTFOUND immediately after bacaro_new or bacaro_subscribe, before any bacaro_dispatch call has processed the snapshot reply
• Explains why: bacaro_get is a pure local cache lookup, snapshot replies sit in a socket buffer until bacaro_dispatch is called
• Shows two fix patterns: usleep-based polling loop and the more efficient poll-on-fd approach, with explanation of the tradeoff between the two