* feat: lang select now moved to top-right corner - AIRI-209
* [autofix.ci] apply automated fixes
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Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>
* refactor: replace status check string literal with enum; add chat ping check option in provider configurations for anthropic, and if it's good, generalize to all openai based provider
* fix: merging conflicts
* refactor: remove manual validation logic and deprecated ProviderValidationAlerts component
* docs: mark 'Health' enum as deprecated with additional usage context
* feat: add manual test validation flow back
* refactor: reintroduce and integrate `ProviderValidationAlerts` component for streamlined validation logic
* chore: mark error msg
* refactor: extract `CHAT_COMPLETIONS_VALIDATOR_ID` constant; enforce skipping chat ping check in background validations
* chore: comments