Web UI i18n and Formatting

This document covers localization and usage formatting utilities in indusagi/src/webui/utils.

Localization (`i18n.ts`)

File: indusagi/src/webui/utils/i18n.ts

Key behaviors:

• Extends mini-lit i18nMessages to include all UI strings used in the Web UI.
• Defines translations for English (en) and German (de).
• Calls setTranslations(translations) on module load.
• Re-exports mini-lit i18n helpers from @mariozechner/mini-lit/dist/i18n.js.

Usage:

• Use i18n("Key") to translate a string in components and dialogs.
• Switch locale via mini-lit helpers such as setLocale (re-exported).

Formatting Helpers (`format.ts`)

File: indusagi/src/webui/utils/format.ts

Functions:

• formatCost(cost) formats total cost as $0.0000.
• formatModelCost(cost) formats input/output prices as $x/$y and returns Free when absent.
• formatUsage(usage) formats usage into tokens and cost tokens like ↑12k ↓4k R1k W500 $0.0123.
• formatTokenCount(count) formats token counts using k abbreviations.

Usage is rendered in assistant-message, session-list-dialog, and tool renderers.