Russian locale falls back to English for About settings metadata and diagnostics

[sashalab]

Environment: self-hosted v0.8.7, built-in Russian locale selected. Native About metadata reports commit 9e74cc0. Reproduced in the authenticated web UI without editing application code.

Steps:

1. Select Russian in Settings > General.
2. Open Settings > About.
3. Inspect metadata labels and the diagnostics button/help text.

Expected: these interface labels use the selected language; version numbers, commit IDs and copied diagnostic values remain unchanged.

Actual: the tab label is localized, but the metadata labels and diagnostics controls fall back to English.

Source check: client/src/components/Nav/SettingsTabs/About/About.tsx already calls useLocalize for seven com_nav_about_* keys. Those seven keys are present in client/src/locales/en/translation.json at v0.8.7 but absent from both client/src/locales/ru/translation.json and packages/client/src/locales/ru/translation.json at that tag. The client Russian catalog on the default branch also had no com_nav_about_* entries when checked on 2026-08-31.

This appears to be missing locale entries rather than missing localization calls. Please confirm the preferred translation-contribution workflow; no product-name rewriting or runtime DOM workaround is requested.

[danny-avila]

Inspect metadata labels and the diagnostics button/help text.

We need more Russian contributors, please see: https://www.librechat.ai/docs/translation