* update v2 partition table readme
* feat: Add user only tool
* Add image cache
* smaller cache and buffer, more heap
* use MAIN_EVENT_CLOCK_TICK to avoid audio glitches
* fix: esp_psram_get_size not found in c3
* Bump to 1.9.0
* fix: resolve crash when closing codec dev on esp-hi
* fix: fix incorrect status display in non-zh-CN languages
* fix: reduce noise when not in Speaking state