dsh-token-data: Token Usage, Supplier Balances, and Quota Panel for DSH Web

dsh-token-data is an MIT-licensed plugin designed for the DeepSeek Harness (DSH) web interface, aiming to centralize the display of dispersed token usage, vendor balances, and subscription quotas. The plugin provides a real-time usage dashboard, daily heat maps, and 7-day trend analysis. It supports balance inquiries for mainstream vendors such as DeepSeek, OpenRouter, and Kimi, as well as quota monitoring for services like OpenCode Go. Its core features include five read-only, loopback-only GET API endpoints, real-time credential parsing (no key storage), incremental caching, and a fault tolerance mechanism (preserving the last successful data). Installation requires Node.js >= 20 and can be performed via `dsh plugin --profile web add dsh-`