Interface RunOptions

Extra checks to run. Combined with the built-in registry per extendRegistry. Lets consumers (e.g. PRValidator) plug their own Checks into the same pipeline.

How checks combines with the built-in registry:

• true (default when checks is set): append; a custom check overrides a built-in one with the same name.
• false: run ONLY the provided checks, ignoring the built-in registry.

Override language detection (e.g. PRValidator passes its already-detected type).

Whitelist of check names — when set, only these run.

Where the report goes:

• 'none': nothing (just return the report)
• 'stdout': print the summary table
• 'github': print + upsert a PR comment
• a function: receives the CheckReport (e.g. forward to Slack).

Blacklist of check names — always excluded.

Allow file-modifying checks to write. Default false.