docs: update build performance benchmarks (2.5.1)

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Automated build benchmark update for 2.5.1 from workflow run #98.

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Greptile Summary

Automated benchmark update for version 2.5.1 reflecting performance metrics from CI workflow run #98. The codebase now has 131 files (up from 126), and all benchmark numbers have been updated accordingly across both native and WASM engines. Build times, query times, and various metrics show minor fluctuations consistent with the increased file count.

Confidence Score: 5/5

• This PR is safe to merge with no risk
• Automated documentation-only update with consistent benchmark data changes reflecting 5 additional files in the codebase, no code changes or logic modifications
• No files require special attention

Important Files Changed

Filename	Overview
README.md	Updated performance benchmark table with latest metrics from version 2.5.1
generated/BUILD-BENCHMARKS.md	Updated comprehensive benchmark data including build times, query performance, and JSON metrics for 131 files

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