**Changes made:**
- `notFound`: Changed from "Not Found" → "Unknown" (and equivalent in other languages)
- `notFoundTooltip`: Changed from "No previous usage detected. Agent may require installation and/or login." → "We couldn't verify this agent is set up, but go ahead and try it."
**Files modified:**
- `frontend/src/i18n/locales/en/settings.json`
- `frontend/src/i18n/locales/es/settings.json`
- `frontend/src/i18n/locales/ja/settings.json`
- `frontend/src/i18n/locales/ko/settings.json`
- `frontend/src/i18n/locales/zh-Hans/settings.json`
- `frontend/src/i18n/locales/zh-Hant/settings.json`
The new wording is softer and encourages users to just try the agent rather than assuming it's not installed.
5ab75f0220