Pass ignore.files patterns to scanning tools

[Nefleex]

Summary

Pass ignore.files config patterns down to runOxlint and runKnip so excluded files are skipped during scanning, not just filtered from results after the fact.

Motivation

The ignore.files config option is documented and accepted, but it only post-filters diagnostics in filterIgnoredDiagnostics. The scanning tools (oxlint and knip) still process every file regardless. This means projects with large build artifact directories still get hundreds of false positive "unused file" warnings from generated output, even when those paths are configured to be ignored.

Usage

{
  "ignore": {
    "files": ["build/**", ".cache/**"]
  }
}

With this change, the patterns above are now forwarded to:

• oxlint via --ignore-pattern CLI flags
• knip via post-filter using the existing compileGlobPattern utility

[vercel]

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