Fix CI formatting and frontend lint failure

[hawkli-1994]

Summary

• fix the frontend ESLint failure in \
• apply Ruff formatting to files failing the backend format job
• validate backend and frontend CI commands locally

Validation

• uv run ruff format --check swarmmind tests
• uv run ruff check swarmmind tests
• make test
• cd ui && pnpm exec eslint . --ext ts,tsx --report-unused-disable-directives --max-warnings 50
• cd ui && pnpm exec tsc --noEmit
• cd ui && pnpm build

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