Remove did-you-mean lint suppression

[alfonso-noriega]

WHY are these changes introduced?

No issue.

The did-you-mean command scoring helper carried a lint suppression for an unnecessary type assertion. This is small maintenance debt in a plugin hook that runs when commands are mistyped.

WHAT is this pull request doing?

Replace the ad-hoc object counter with a Map<string, number> counter so repeated bigrams are counted without non-null assertions or lint disables.

Behavior is unchanged: suggestions are still ranked by shared bigram count, then by shorter command name.

How to test your changes?

• pnpm nx run plugin-did-you-mean:lint --skip-nx-cache
• pnpm --dir packages/plugin-did-you-mean vitest run src/index.test.ts

Post-release steps

None.

Checklist

• I've considered possible cross-platform impacts (Mac, Linux, Windows)
• I've considered possible documentation changes
• I've considered analytics changes to measure impact
• The change is user-facing — I've identified the correct bump type (patch for bug fixes · minor for new features · major for breaking changes) and added a changeset with pnpm changeset add

Not user-facing; no changeset needed.