dangernoodle-io / TaipanMiner / 24978464369

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fix: bump breadboard v0.16.4 + remove broken knot mdns requery (#222)

The periodic mdns_query_txt requery introduced in #216 caused tdongle
miners to reboot every ~45 s. Two distinct failure modes observed:

- mining_task aborted on esp_log_impl_lock_timeout (50 ms IDF log
  mutex ceiling) — the 1500 ms blocking call ran on the esp_timer
  service task and starved the mutex.
- After migrating to v0.16.4's bb_mdns_query_txt async shim (so the
  blocking call runs on a dedicated worker), silent reboots persisted
  with no panic backtrace and reset reason "software". Root cause
  unidentified; reverting the requery clears the loop.

Treat TXT freshness as best-effort until a non-rebooting refresh path
lands. The mdns_browse notifier still delivers add/update/remove
events from IDF.

Bumps breadboard pin to v0.16.4 which adds:
- bb_mdns: re-arm browse subscriptions after WiFi reconnect (B1-82)
- bb_mdns: dispatch consumer callbacks via worker task (B1-83/85/86)
- bb_mdns: query A record on dispatch when ip4 missing (B1-84)
- bb_mdns: bb_mdns_query_txt async shim (B1-81)

Refs TA-251.

Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>

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