fix(seed-rich-telemetry): validate services count

[suryapratapsingh26]

What & why

Validate the --services CLI argument before using it.

Previously, passing a non-numeric value (for example --services abc) caused Number() to return NaN, which propagated through Math.max/Math.min and resulted in an invalid service count. This change validates the parsed value and throws an error for invalid input.

Addresses item #12 from Code Audit issue #68.

How to test

• Run:

  pnpm tsx scripts/demo/seed-rich-telemetry.ts --services abc

  Verify the script exits with:

  Error: invalid services count
  

• Run:

  pnpm tsx scripts/demo/seed-rich-telemetry.ts --services 4

  Verify the script starts normally.

AI assistance

• None
• [x ] Used AI for: discussing the validation approach and reviewing the implementation.

Type of change

• Bug fix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (fix or feature that would change existing behavior)
• Documentation
• Tests only
• Refactor / cleanup

Checklist

• pnpm typecheck passes
• pnpm lint passes
• pnpm format has been run on changed files
• Added or updated tests where it makes sense
• Branch is up to date with main
• PR title follows the area-prefix style for the area being changed (e.g. worker: …, fix(slack): …)
• Read CONTRIBUTING.md (skim counts)

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Summary by cubic

Validate the --services CLI argument in scripts/demo/seed-rich-telemetry.ts to prevent NaN-based invalid service counts (addresses Code Audit issue #68, item 12). Non-numeric or infinite values now throw "invalid services count"; valid numbers are floored and clamped to 1–8.

^{Written for commit 601ed3d. Summary will update on new commits.}

[cubic-dev-ai]

No issues found across 1 file

_{Re-trigger cubic}