chore(benchmarks): backfill 0.17.1 release snapshot

[benvinegar]

Summary

• Backfill the published 0.17.1 release benchmark snapshot onto main.
• Preserve 0.17.1 as the baseline selected by future release benchmark comparisons instead of falling back to 0.17.0.
• Add an empty changeset because this historical benchmark artifact does not require a package release.

Verification

• bun run changeset:status -- --since=origin/main
• bun run bench:release:compare -- --version 0.17.1 --out /tmp/hunk-main-0.17.1-benchmark-comparison.json
• bunx oxfmt --check benchmarks/release/bench-0.17.1.json .changeset/thirty-islands-reply.md

This PR description was generated by Pi using OpenAI GPT-5.2

[greptile-apps]

Greptile Summary

This PR backfills the bench-0.17.1.json release benchmark snapshot onto main and adds an empty changeset to satisfy the changeset gate without triggering a new package release.

• Adds benchmarks/release/bench-0.17.1.json containing 1429 lines of benchmark results (5 samples per metric, with computed median/p75/p95/min/max) recorded against gitSha 35934407 (the "prepare 0.17.1" commit), which is one commit before the actual v0.17.1 tag — a normal artifact of the release workflow where the snapshot is generated before the final tag commit is created.
• Adds .changeset/thirty-islands-reply.md as an intentionally empty changeset (front-matter only, no package entries) so the changeset tooling is satisfied without queuing a release.

Confidence Score: 5/5

Safe to merge — both files are purely additive data artifacts with no executable code changes.

The benchmark JSON follows the same schema as every prior release snapshot, spot-checked statistical fields (median, p75, p95, min, max) are correct for the recorded samples, and the empty changeset is a well-understood pattern in this repo for gating the release tooling without publishing a new version.

No files require special attention.

Important Files Changed

Filename	Overview
benchmarks/release/bench-0.17.1.json	New benchmark snapshot for v0.17.1; schema and statistical fields match the pattern of existing release snapshots (0.17.0, 0.16.0, etc.) and spot-checked sample statistics are correct
.changeset/thirty-islands-reply.md	Intentionally empty changeset (front-matter only, no package bumps) to satisfy the changeset gate without triggering a release

Sequence Diagram

%%{init: {'theme': 'neutral'}}%%
sequenceDiagram
    participant Release as Release Workflow
    participant Bench as bench:release script
    participant FS as benchmarks/release/
    participant Main as main branch
    participant Compare as bench:release:compare

    Release->>Bench: Run benchmarks at v0.17.1 gitSha
    Bench->>FS: Write bench-0.17.1.json
    Note over FS: generatedAt: 2026-07-15<br/>gitSha: 35934407 (prepare 0.17.1)
    FS-->>Release: Snapshot saved on release branch

    Release->>Main: "PR #547 backfill to main"
    Main->>FS: bench-0.17.1.json now on main

    Compare->>FS: Load bench-0.17.1.json as baseline
    Compare->>FS: Load current HEAD snapshot
    Compare-->>Compare: Diff metrics, flag regressions

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%%{init: {'theme': 'base', 'themeVariables': {"darkMode": true, "background": "#0d1117", "primaryColor": "#21262d", "primaryTextColor": "#e6edf3", "primaryBorderColor": "#8b949e", "lineColor": "#8b949e", "textColor": "#e6edf3", "edgeLabelBackground": "#161b22", "actorBkg": "#21262d", "actorBorder": "#8b949e", "actorTextColor": "#e6edf3", "actorLineColor": "#8b949e", "signalColor": "#8b949e", "signalTextColor": "#e6edf3", "noteBkgColor": "#373320", "noteBorderColor": "#d4a72c", "noteTextColor": "#f0e6c0", "labelBoxBkgColor": "#21262d", "labelBoxBorderColor": "#8b949e", "labelTextColor": "#e6edf3", "loopTextColor": "#e6edf3", "activationBkgColor": "#30363d", "activationBorderColor": "#8b949e"}}}%%
sequenceDiagram
    participant Release as Release Workflow
    participant Bench as bench:release script
    participant FS as benchmarks/release/
    participant Main as main branch
    participant Compare as bench:release:compare

    Release->>Bench: Run benchmarks at v0.17.1 gitSha
    Bench->>FS: Write bench-0.17.1.json
    Note over FS: generatedAt: 2026-07-15<br/>gitSha: 35934407 (prepare 0.17.1)
    FS-->>Release: Snapshot saved on release branch

    Release->>Main: "PR #547 backfill to main"
    Main->>FS: bench-0.17.1.json now on main

    Compare->>FS: Load bench-0.17.1.json as baseline
    Compare->>FS: Load current HEAD snapshot
    Compare-->>Compare: Diff metrics, flag regressions

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