Feat: Add RocketMQ workload benchmarks

[mxsm]

Implements the RocketMQ workload benchmark stage.

Scope:

• Adds topic route lookup benchmarks.
• Adds message properties benchmarks.
• Adds remoting header parse/encode benchmarks.
• Compares String, Arc, CompactString, SmartString, and CheetahString where applicable.

Verification completed locally:

• cargo bench --bench mq_topic --no-run
• cargo bench --bench mq_properties --no-run
• cargo bench --bench mq_remoting_header --no-run
• final full verification matrix on integration branch

Closes #114.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 85f40e91-726f-43b8-a980-25a938f43b8e

📥 Commits

Reviewing files that changed from the base of the PR and between 21aa0bf and 24d0fcd.

📒 Files selected for processing (25)

• .github/workflows/ci.yaml
• .github/workflows/release.yml
• Cargo.toml
• README.md
• bench-results/README.md
• benches/comprehensive.rs
• benches/layout.rs
• benches/mq_properties.rs
• benches/mq_remoting_header.rs
• benches/mq_topic.rs
• benches/mutation.rs
• benches/pattern.rs
• scripts/bench-all.ps1
• scripts/bench-all.sh
• src/bytes.rs
• src/cheetah_string.rs
• src/lib.rs
• src/search.rs
• src/serde.rs
• src/simd.rs
• tests/basic.rs
• tests/bytes.rs
• tests/layout_snapshot.rs
• tests/mutation.rs
• tests/search.rs

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch codex/pr-009-mq-workload-benchmarks

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[Copilot]

Pull request overview

This PR adds RocketMQ-style workload benchmarks (topic routing, message properties, and remoting header encode/parse) to evaluate CheetahString vs other string representations, and also introduces supporting infrastructure (layout snapshots/artifacts, benchmark scripts, CI artifact upload). In addition, it includes significant core API and behavior changes around byte/string construction, substring search implementation, and release automation.

Changes:

• Added RocketMQ workload benchmark suites (mq_topic, mq_properties, mq_remoting_header) plus additional benchmark coverage (pattern, mutation, layout).
• Refactored core string behavior: substring search moved to memchr/memmem, byte conversions shifted toward validated TryFrom, and introduced CheetahBytes behind the bytes feature.
• Added artifact capture conventions + scripts, CI upload for layout artifacts, and a new release workflow.

Reviewed changes

Copilot reviewed 25 out of 25 changed files in this pull request and generated 12 comments.

Show a summary per file

File	Description
tests/search.rs	Adds search semantics tests for find/rfind and CheetahFinder.
tests/mutation.rs	Adds mutation tests validating in-place append/reserve behavior via pointer stability.
tests/layout_snapshot.rs	Emits a layout JSON snapshot into target/layout-artifacts during tests.
tests/bytes.rs	Adds CheetahBytes tests (feature-gated), including UTF-8 validation on conversion.
tests/basic.rs	Updates tests for new conversion semantics and buffer reuse expectations.
src/simd.rs	Silences dead-code warnings for now-unused SIMD search helpers.
src/serde.rs	Simplifies serde impl and adds UTF-8 validation for byte inputs.
src/search.rs	Introduces memchr/memmem-based byte search utilities and CheetahFinder.
src/lib.rs	Wires new modules/exports (search, CheetahFinder, CheetahBytes) and updates docs.
src/cheetah_string.rs	Major internal/storage and conversion API changes; search now uses crate::search.
src/bytes.rs	Adds CheetahBytes wrapper over bytes::Bytes with serde support (feature-gated).
scripts/bench-all.sh	Adds a bench runner script that saves outputs under bench-results/<version>/.
scripts/bench-all.ps1	Adds a PowerShell bench runner script saving outputs under bench-results/<version>/.
README.md	Updates docs for v1.1.0, memchr search default, and CheetahBytes.
Cargo.toml	Bumps crate to 1.1.0, adds optional bytes, adds memchr, adds new benches/dev-deps.
benches/pattern.rs	Adds search/pathological benchmark coverage (finder vs find).
benches/mutation.rs	Adds mutation/reserve microbenchmarks.
benches/mq_topic.rs	Adds RocketMQ topic insert/lookup benchmarks across string types.
benches/mq_remoting_header.rs	Adds RocketMQ-like header encode/parse benchmarks across string types.
benches/mq_properties.rs	Adds RocketMQ properties build/lookup benchmarks across string types.
benches/layout.rs	Adds a bench-mode layout snapshot artifact generator.
benches/comprehensive.rs	Updates comprehensive bench to use try_from_vec for validated construction.
bench-results/README.md	Defines benchmark artifact layout conventions and capture commands.
.github/workflows/release.yml	Adds a tag/manual release workflow for fmt/clippy/tests/package/publish/release.
.github/workflows/ci.yaml	Expands CI to OS/Rust matrix, no_std checks, layout snapshot, artifact upload.

Comments suppressed due to low confidence (1)

src/serde.rs:78

• cheetah_string registers visit_bytes / visit_byte_buf, but calls deserialize_str, so Serde formats that encode bytes (e.g. serde_json byte arrays, bincode, etc.) will never hit these visitors and will fail to deserialize. Use deserialize_any (or deserialize_bytes if you want bytes-first) so the visitor methods are actually reachable.

            CheetahString::try_from_vec(v).map_err(Error::custom)
        }
    }
    deserializer.deserialize_str(CheetahStringVisitor)
}

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