Clean up benchmarks and add search benchmarks

[Ellpeck]

No description provided.

[Copilot]

Pull request overview

This PR streamlines the project’s Vitest benchmark setup by removing an older slicing benchmark file, introducing new search-focused benchmarks, and documenting a dedicated npm script to run benchmarks.

Changes:

• Removed the legacy slicing benchmark file.
• Added a new flowR search benchmark suite and a helper (benchmarkSearch) to benchmark search queries.
• Added npm run test:bench and updated documentation to reference it.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
test/functionality/slicing/slicing.bench.ts	Removes the previous slicing benchmark file.
test/functionality/search/search.bench.ts	Adds benchmarks for search filters/enrichments and a larger “function finder” scenario.
test/functionality/_helper/search.ts	Adds benchmarkSearch helper used by the new benchmark suite.
src/documentation/wiki-linting-and-testing.ts	Updates docs to point users to npm run test:bench.
package.json	Adds test:bench script (vitest bench --config test/vitest.config.mts).

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[EagleoutIce]

This pull request is included in v2.10.8 (see Release v2.10.8 (MultiValue fixes, refined input sources, fixed linter rules)).