feat: add ATK-DNESP32S3-BOX0 board support

[xinbao-creator]

Summary

• Add ALIENTEK ATK-DNESP32S3-BOX0 board definition for Edge Agent.
• Configure ESP32-S3 16MB flash, Octal PSRAM, power rails, battery ADC/charge status, ST7789 LCD, LEDC backlight, ES8311 audio, and three GPIO buttons.
• Add board-local build, flash, boot, and smoke-test notes.
• Intentionally omit TF card support until the BOX0 TF pin mapping is confirmed.

Validation

• idf.py gen-bmgr-config -c ./boards -b atk_dnesp32s3_box0 passes with ESP Board Manager 0.5.13.
• idf.py build was started with local ESP-IDF v6.0.1. The build passed dependency resolution and the BOX0 board source/custom-device compile stage after fixes, then was stopped manually at about 2077/2519 build steps because the local machine was overheating.
• Hardware smoke tests are pending on a physical ATK-DNESP32S3-BOX0 board.

Notes

• Pin mapping is based on Xiaozhi's atk-dnesp32s3-box0 board definition.
• The project README recommends ESP-IDF v5.5.4; the local machine only had ESP-IDF v6.0.1 available during this pass.

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