Summary

Follow-up fixes for the merged desktop window chrome redesign in #10227.

• Reset the shared mobile drawer state on every route transition.
• Keep the provider/model selector hidden when the selected agent configuration does not support it.
• Add the missing Japanese and Russian navigation translations.
• Scope rail tooltip shadow removal to rail tooltips only.
• Avoid false missing-translation warnings when config metadata falls back to config translations.

Verification

• pnpm --dir dashboard exec vue-tsc --noEmit
• pnpm --dir dashboard build
• git diff --check

Summary by Sourcery

Resolve desktop window chrome follow-up regressions across navigation state, selector visibility, localization, and rail tooltip styling.

Bug Fixes:

• Reset temporary mobile drawer state on route changes.
• Hide the provider/model selector when unavailable for the selected agent configuration.
• Add Japanese and Russian navigation translations.
• Prevent false missing-translation warnings for configuration metadata fallbacks.
• Restrict shadow removal to rail tooltips.