token viewer · DSH usage and cost panel

Key features

• TokenDock — a slim live strip above the composer showing the current session's billed input (uncached + cache read + cache write), output, cache hit rate, and approximate context occupancy.
• lib/index.js — plugin host half (balance route + modelUsage / usageLog session projections), ready to load.
• Sidebar card — DeepSeek account balance (with refresh
• error-retry when the host proxy fails) and aggregate consumption across all sessions, expandable to a per-conversation list.
• Usage statistics panel (right-side drawer, a faithful port of CC Switch's usage-dashboard method)