UI Enhancements

Japanese (日本語) interface for DeepSeek Harness — a standard DSH client plugin that adds 日本語 as a selectable UI language alongside 中文 and English, with Japanese system fonts.

Per-turn USD cost badge in the Web UI: session total in the header and per-turn cost in each message footer, with a hover breakdown.

DeepSeek API balance, balance trend, and daily usage charts in DSH Web settings.

Upload arbitrary local files from the Web composer, show pending cards, and manage stored files in Settings.