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* add: Moji 2 has built-in ESP32-C5 dual band Wi-Fi * feat: PowerSaveTimer 160 >> 240 * fix(audio): add frame buffering to NoAudioProcessor On chips where CONFIG_USE_AUDIO_PROCESSOR is unavailable (e.g., ESP32-C5, which is excluded by Kconfig despite having PSRAM), NoAudioProcessor is used. The original implementation passed through 160-sample chunks directly, but the Opus encoder expects 960 samples (60ms @ 16kHz), resulting in frame size mismatch errors, high CPU usage, and watchdog resets. Added output_buffer_ to accumulate audio samples until reaching frame_samples_ (960) before outputting, matching AfeAudioProcessor behavior. other: Turn off sleep mode (PowerSaveTimer)