chore: add comparison of plurality to infinity_pool

[geeknoid]

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[Copilot]

Pull request overview

This PR extends the plurality crate’s ecosystem/performance comparison materials by adding infinity_pool to the documented capability matrix and to the Linux-only cross-crate benchmarking + perf report generation flow.

Changes:

• Add infinity-pool to the crate-level comparison table (both rustdoc in src/lib.rs and the generated README.md).
• Extend the pool_comparison gungraun benchmark suite with infinity_pool::PinnedPool and infinity_pool::RawPinnedPool, and teach the perf report script to label these results.
• Refresh docs/PERF.md to include the new comparison rows and updated benchmark numbers.

Reviewed changes

Copilot reviewed 6 out of 7 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
crates/plurality/src/lib.rs	Adds infinity-pool to the rustdoc capability comparison table and link references.
crates/plurality/scripts/perf_report.rs	Extends comparison label mapping to include the new infinity_* benchmark functions in the generated report.
crates/plurality/README.md	Updates the generated README to include infinity-pool in the comparison table and link targets.
crates/plurality/docs/PERF.md	Refreshes performance report output with updated numbers and new infinity-pool comparison rows.
crates/plurality/Cargo.toml	Adds infinity_pool as a Linux-only dev-dependency for the gungraun comparison bench.
crates/plurality/benches/pool_comparison/linux.rs	Adds PinnedPool and RawPinnedPool benchmark implementations and includes them in the benchmark group.
Cargo.lock	Records the new infinity_pool dependency in the lockfile.

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[Copilot]

Pull request overview

Copilot reviewed 6 out of 7 changed files in this pull request and generated no new comments.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.0%. Comparing base (0107169) to head (7e0ed64).

Additional details and impacted files

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##             main     #581   +/-   ##
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  Coverage   100.0%   100.0%           
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  Files         360      360           
  Lines       27886    27886           
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  Hits        27886    27886           

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