chore: sync upstream-fanatics -> personal 2026-05-31

[tstapler]

Automated nightly sync. 4 commits from work fork.

All 4 commits are benchmark baseline updates (chore(bench): ...). Conflicts in benchmarks/ resolved by taking work fork versions (--theirs).

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Generated by Claude Code

[Copilot]

Pull request overview

This automated nightly sync updates benchmark baseline artifacts used by CI for future performance comparisons. No application source code is modified.

Changes:

• Refreshes Go Tier 1 and Tier 2 benchmark baseline outputs.
• Updates frontend throughput baseline JSON.
• Updates E2E ListSessions latency baseline JSON.

Reviewed changes

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

File	Description
benchmarks/go/tier1-baseline.txt	Updates critical-path Go benchmark baseline results.
benchmarks/go/tier2-baseline.txt	Updates full Go benchmark-suite baseline results.
benchmarks/frontend/throughput-baseline.json	Updates terminal throughput baseline metrics.
benchmarks/e2e/latency-baseline.json	Updates ListSessions latency baseline metrics.

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