dangernoodle-io / breadboard / 24916114713

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fix(bb_log): event-driven SSE eviction; replace 1s busy-wait (B1-65) (#83)

new /api/logs client used to evict the old SSE task with a 100ms poll
loop (up to 10 iterations = 1s max wait), blocking the httpd request
queue during a page reload or tab switch.

replace with a FreeRTOS event group: SSE task sets SSE_EXITED_BIT on
self-destruct; new client waits up to 200ms, bails with 503 if the
old task is stuck. EventSource in the browser retries on its own, so
503 is safe fallback.

worst-case httpd block: 1s → 200ms. no-ops when the old task is
already gone (bits pre-set).

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

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