DeepSeek Harness Plugin: dsh-cubox (Cubox Sync & AI Briefing)

`dsh-cubox` is a DeepSeek Harness (DSH) plugin designed to automate Cubox's data organization workflow. It retrieves saved items via scheduled tasks, uses AI to generate daily briefs, supports Markdown export, and provides flomo note synchronization, card queries, and a command-line tool. Users need to configure Cubox's API endpoint in DSH and ensure that credentials are stored securely.