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30f9bfaf83
Eliminate redundant xTaskGetCurrentTaskHandle() and pcTaskGetName() calls on the hot path by resolving the thread name once in log_vprintf_ and passing it through as const char* to all downstream functions. - Main task fast path passes nullptr (no task handle lookup needed) - Non-main thread path resolves name once, passes to both ring buffer and emergency console fallback - Unify log_vprintf_non_main_thread_ to single signature across platforms - Change send_message_thread_safe() on all platforms from TaskHandle_t to const char* thread_name - Add TaskHandle_t overload for get_thread_name_ as primary on ESP32/LibreTiny, with no-arg convenience wrapper - Use std::span<char> for Host/Zephyr get_thread_name_ buffer parameter - Document Zephyr single-task path thread safety limitation
