chore(release) #390: v0.2.4 release polish

[JoshuaChi]

What Does This PR Do?

Final release polish for v0.2.4 — collecting last-minute doc and config fixes
before publishing to crates.io.

Type:

• Bug Fix (with test)
• Feature (issue #___ approved)
• Documentation
• Test/Coverage
• Performance (with benchmark)

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Why Is This Needed?

For bugs: Stray space in bench report image filename (d-engine_v0.2.4_ vs_etcd_3.2.0.png)
broke image rendering. Fixed filename to d-engine_v0.2.4_vs_etcd_3.2.0.png.

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Checklist

Required:

• make test passes
• Commits squashed to 1-2 logical units

If changing APIs:

• N/A — documentation only

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Testing

How tested:

• Manual: verified markdown image renders correctly after filename fix

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Does This Follow d-engine's Principles?

• Solves a real problem for most users (not just my edge case)
• Keeps implementation simple
• Doesn't bloat the API surface

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Reviewer Notes

Doc-only fix. Quick review.

Estimated review complexity:

• Quick (< 100 lines)
• Medium (< 300 lines)
• Deep (> 300 lines)

Summary by CodeRabbit

• Documentation
  • Updated v0.2.4 benchmark report formatting and table layouts for improved readability.
  • Refined markdown styling and alignment across benchmark comparison tables.
  • Streamlined report structure and presentation.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 62bf0d7b-3a4f-4f17-b40b-111c292d044f

📥 Commits

Reviewing files that changed from the base of the PR and between 3797413 and abfc31d.

📒 Files selected for processing (1)

• benches/reports/v0.2.4/bench_report_v0.2.4.md

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📝 Walkthrough

Walkthrough

Benchmark report v0.2.4 underwent formatting standardization across all benchmark comparison tables. Local, AWS, and etcd comparison sections received markdown styling adjustments to average-label lines, table structure, and delta-cell emphasis. The AWS section image reference was updated. The trailing "Key Changes in v0.2.4" section was removed. All numerical benchmark data remained unchanged.

Changes

Benchmark Report Formatting and Structure Update

Layer / File(s)	Summary
Local benchmark table formatting benches/reports/v0.2.4/bench_report_v0.2.4.md	Local 3-node Embedded and Standalone mode tables reformatted with adjusted average-label styling and consistent table spacing; metric values and deltas unchanged.
AWS and etcd comparison updates benches/reports/v0.2.4/bench_report_v0.2.4.md	AWS 3-node embedded section image reference updated and table formatting adjusted. Etcd comparison tables for both Embedded and Standalone modes reformatted with consistent headers and delta-cell emphasis; all reported throughput and latency figures preserved.
Section removal and report cleanup benches/reports/v0.2.4/bench_report_v0.2.4.md	Removed the trailing "## Key Changes in v0.2.4" section containing commit/ticket references and architecture change impact notes.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Poem

🐰 A markdown makeover, fresh and bright,
Tables aligned with formatting delight,
Old images replaced, sections cleaned away,
The benchmark report looks great today!

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title 'chore(release) #390: v0.2.4 release polish' directly aligns with the PR objective of final release polish for v0.2.4, addressing documentation and configuration fixes before publishing.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch release/v0.2.4

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

📢 Thoughts on this report? Let us know!