[mdns-avahi] utilize Avahi events for complete result handling #2742
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This commit enhances
Mdns::Publisher
using Avahi to utilize the eventsAVAHI_BROWSER_ALL_FOR_NOW
andCACHE_EXHAUSTED
, which notify that all records have been processed and no further results are expected in the near future.This improvement prevents premature "resolved" callbacks after receiving only the initial IPv6 address, thereby improving host and service address resolution. The
Publisher
now waits for these events to ensure it gathers all available addresses from the cache and query responses before signaling resolved callback.