docs: update query benchmarks (2.6.0)

[github-actions]

Automated query benchmark update for 2.6.0 from workflow run #128.

[greptile-apps]

Greptile Summary

Automated benchmark documentation update for version 2.6.0, adding new performance metrics from the workflow run.

• Added benchmark data for v2.6.0 showing query latencies for both native and WASM engines
• Updated "Latest results" section to reflect current version
• Hub target changed from src/db.js to startMCPServer (likely due to codebase changes)
• Benchmark data shows performance regression compared to 2.5.1 (~2x slower for fnDeps/fnImpact queries, ~24% slower for diffImpact)

Confidence Score: 5/5

• This PR is safe to merge - it's an automated documentation update with correctly formatted benchmark data
• Documentation-only change with machine-generated benchmark data that is properly formatted and internally consistent. No code changes or logic modifications.
• No files require special attention

Important Files Changed

Filename	Overview
generated/benchmarks/QUERY-BENCHMARKS.md	Automated benchmark update for v2.6.0 showing query performance metrics; data is correctly formatted and consistent

_{Last reviewed commit: 4cdb0f7}

[greptile-apps]

_{1 file reviewed, no comments}

_{Edit Code Review Agent Settings | Greptile}

[carlos-alm]

Closing as duplicate of #250 (same query benchmarks file, created 40s apart).