[doc] Fix lots of little typos in diskann-wide

[hildebrandmw]

Fix various typos, outdated safety comments, and inaccuracies.

This is almost entirely documentation only, with a few error messages containing typo fixes as well.

[Copilot]

Pull request overview

This PR fixes numerous typos, outdated safety comments, and inaccuracies in the diskann-wide crate documentation. The changes are almost entirely documentation-only, with a few error messages and safety comments also corrected. Additionally, several intrinsic feature requirements have been corrected to match Intel's intrinsics guide specifications.

Changes:

• Fixed spelling and grammar errors throughout documentation (e.g., "dereferencable" → "dereferenceable", "than" → "then", "correponsing" → "corresponding")
• Corrected intrinsic CPU feature requirements (SSE3 → SSSE3 for abs instructions, AVX2 → AVX for some conversions, AVX2 → AVX512BW+AVX512VL for i16 shifts)
• Improved safety comments by replacing vague "Gated by CFG" comments with specific feature requirements
• Fixed incorrect type descriptions in code comments (e.g., "32-bit floating point" → "32-bit signed integer" for integer SIMD types)

Reviewed changes

Copilot reviewed 59 out of 59 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
diskann-wide/src/traits.rs	Fixed typos in trait documentation (dereferenceable, numeric, bitmask, etc.) and corrected doc comment for none() method
diskann-wide/src/test_utils/*.rs	Fixed typos in test utility documentation and comments
diskann-wide/src/splitjoin.rs	Minor grammar fix in doc comment
diskann-wide/src/lifetime.rs	Fixed typos in module documentation ("funtion" → "function", "limitations the" → "limitations in the")
diskann-wide/src/lib.rs	Fixed path typo and removed outdated doc comment
diskann-wide/src/emulated.rs	Multiple typo fixes and corrected type descriptions in comments
diskann-wide/src/arch/x86_64/v4/*.rs	Corrected intrinsic feature requirements, fixed type descriptions, improved NaN check comments, and fixed various typos
diskann-wide/src/arch/x86_64/v3/*.rs	Similar corrections as v4: intrinsic features, safety comments, type descriptions
diskann-wide/src/arch/x86_64/{mod,macros,common,algorithms}.rs	Fixed typos in comments and improved safety documentation
diskann-wide/src/arch/emulated/mod.rs	Fixed "compattible" → "compatible" typo

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[codecov-commenter]

Codecov Report

❌ Patch coverage is 33.33333% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 88.98%. Comparing base (ea4078e) to head (5400182).

Files with missing lines	Patch %	Lines
diskann-wide/src/arch/x86_64/v3/mod.rs	0.00%	1 Missing ⚠️
diskann-wide/src/arch/x86_64/v4/mod.rs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #771      +/-   ##
==========================================
- Coverage   90.29%   88.98%   -1.31%     
==========================================
  Files         428      428              
  Lines       78420    78420              
==========================================
- Hits        70809    69785    -1024     
- Misses       7611     8635    +1024     

Flag	Coverage Δ
miri	88.98% <33.33%> (-1.31%)	⬇️
unittests	88.98% <33.33%> (-1.31%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
diskann-wide/src/arch/emulated/mod.rs	100.00% <ø> (ø)
diskann-wide/src/arch/mod.rs	83.79% <ø> (-5.03%)	⬇️
diskann-wide/src/arch/x86_64/algorithms.rs	100.00% <ø> (ø)
diskann-wide/src/arch/x86_64/common.rs	66.66% <ø> (-33.34%)	⬇️
diskann-wide/src/arch/x86_64/macros.rs	55.84% <ø> (-44.16%)	⬇️
diskann-wide/src/arch/x86_64/mod.rs	91.62% <ø> (+1.47%)	⬆️
diskann-wide/src/arch/x86_64/v3/conversion.rs	100.00% <ø> (ø)
diskann-wide/src/arch/x86_64/v3/f16x16_.rs	100.00% <ø> (ø)
diskann-wide/src/arch/x86_64/v3/f16x8_.rs	100.00% <ø> (ø)
diskann-wide/src/arch/x86_64/v3/f32x4_.rs	100.00% <ø> (ø)
... and 49 more

... and 10 files with indirect coverage changes

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