What version of Oxlint are you using?

1.38.0

What command did you run?

pnpm oxlint -A all -D typescript-eslint/no-floating-promises --type-aware
pnpm oxlint -A all -D unknown/rules

What does your .oxlintrc.json config file look like?

No response

What happened?

This issue is spun out from #17502 (thanks @connorshea).

Currently, oxlint allows misconfigurations without errors or warnings.
I think anything that is deterministically wrong at config-parse time should be reported immediately during normal execution, including:

• Duplicate rules
• Type-aware rules without type-aware enabled
• Invalid plugins / rules / config