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9a8bb08192
ESP32Preferences::open() runs from app_main() before the generated setup() calls Logger::pre_setup(), so global_logger is null. The ESP_LOGW on nvs_open failure would dereference null in release builds (and assert in ESPHOME_DEBUG). Stash the err in a static and emit the warning lazily from the first make_preference() call, which runs after pre_setup() at EARLY_INIT priority.
