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refactor(wdt): migrate Task-WDT management onto breadboard bb_wdt (#524)

replaces all direct esp_task_wdt_{add,delete,reset}(NULL) calls in the mining
and asic components with the portable bb_wdt_* wrappers (breadboard v0.59.0):

- bb_wdt_task_subscribe() ← esp_task_wdt_add(NULL)
- bb_wdt_task_feed()      ← esp_task_wdt_reset()
- re-homes TA-422's park-window WDT handling onto bb_wdt_park_wait in
  mining_pause.c: the done_take(300000) wait now runs with the task
  unsubscribed from the WDT and resubscribed on resume, instead of the
  delete/add bracket at the mining.c / asic_task.c call sites. on a single
  core the parked task cannot get scheduled to feed, so it must leave the WDT
- removes the TA-422 delete/add/reset brackets from mining.c and both the
  QUIESCE_AND_ACK and ACK_ONLY arms in asic_task.c
- grep esp_task_wdt components/ src/ → 0 hits; bb_wdt is the sole owner

- re-pin breadboard v0.58.0 → v0.59.0 (brings in bb_wdt)
- add bb_wdt to mining and asic CMakeLists REQUIRES + native scaffold
- test_mining_pause_io asserts the single done_take(300000) park_wait contract

validated on-device: esp32-c3-supermini completed a full in-place pull-OTA
(dev build → v0.28.0) with the mining task parked and no task_wdt; clean
reset reason, no panic, no abnormal-reset increment.

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>

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