chore: add normalization benchmarks with additional workload scenarios

[hyf0]

No description provided.

[codspeed-hq]

Merging this PR will not alter performance

✅ 18 untouched benchmarks
🆕 6 new benchmarks
⏩ 1 skipped benchmark¹

Performance Changes

	Benchmark	BASE	HEAD	Efficiency
🆕	normalize_mixed_workload	N/A	45.2 µs	N/A
🆕	normalize_short_clean	N/A	5.4 µs	N/A
🆕	normalize_already_clean_absolute	N/A	12.7 µs	N/A
🆕	normalize_needs_work	N/A	30.1 µs	N/A
🆕	normalize_deep_clean	N/A	9.5 µs	N/A
🆕	normalize_already_clean	N/A	23 µs	N/A

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_{Comparing hyf_32849032 (b9c03eb) with main (8788c4f)}

Footnotes

1. 1 benchmark was skipped, so the baseline result was used instead. If it was deleted from the codebase, click here and archive it to remove it from the performance reports. ↩

[Copilot]

Pull request overview

This PR expands the existing Criterion benchmarks for SugarPath::normalize() to cover additional workload scenarios (already-normalized inputs, mixed workloads, and size/depth-focused cases) so performance characteristics can be compared across different path shapes.

Changes:

• Split the prior single normalize benchmark into multiple targeted benchmark cases (needs-work, already-clean, mixed workload, short clean, deep clean).
• Extended bench fixture sets with more normalization-heavy strings and additional absolute-path samples.
• Added OS-specific “already normalized” fixture lists for Unix and Windows.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 4 comments.

File	Description
benches/normalize.rs	Adds several new normalize_* benchmarks targeting distinct workload patterns.
benches/fixtures.rs	Adds additional path fixtures, including OS-specific “already normalized” path lists used by the new benchmarks.

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