Record K3 Pico V1.3 adapter update

[junlin-luo-spacemit]

Summary

Records the K3 Pico-ITX V1.3 CCC-certified power-adapter requirement in the Chinese and English revision histories.

Validation

• git diff --check

[github-actions]

📝 Doc-Review Agent Report

zh/k3_pico/pico_user_guide.md

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⚠️ This is an automated review. It never blocks merge.