feat: add modern CI/CD pipeline from template

[konard]

Summary

Apply modern CI/CD pipeline from rust-ai-driven-development-pipeline-template.

Changes

• GitHub Actions Workflow (.github/workflows/release.yml):

  • Lint and format checking with rustfmt and clippy
  • Multi-platform testing (Ubuntu, macOS, Windows)
  • Automatic release on version change in Cargo.toml
  • Manual release via workflow_dispatch
  • Uses nightly Rust toolchain (required for unstable features)
  • File size validation (max 1000 lines per Rust file)

• CI/CD Scripts (scripts/):

  • bump_version.py - Version bumping utility
  • check_file_size.py - Rust file size validation
  • collect_changelog.py - Fragment-based changelog collection
  • create_github_release.py - GitHub release automation
  • version_and_commit.py - CI/CD version management

• Changelog System (changelog.d/):

  • Fragment-based changelog (like Changesets/Scriv)
  • Prevents merge conflicts when multiple PRs add changelog entries
  • CHANGELOG.md with Keep a Changelog format

• Development Configuration:

  • .pre-commit-config.yaml - Pre-commit hooks for code quality
  • CONTRIBUTING.md - Development guidelines and contribution instructions
  • Updated .gitignore with comprehensive patterns

File Tree Comparison

Template File	Status
.github/workflows/release.yml	Added
.pre-commit-config.yaml	Added
CHANGELOG.md	Added
CONTRIBUTING.md	Added
changelog.d/README.md	Added
scripts/bump_version.py	Added
scripts/check_file_size.py	Added
scripts/collect_changelog.py	Added
scripts/create_github_release.py	Added
scripts/version_and_commit.py	Added
.gitignore	Updated

CI Status Note

The CI pipeline is correctly configured and running, but the builds are failing due to pre-existing issues with the crate's unstable Rust feature usage:

1. The crate uses experimental features (#[const_trait], ~const bounds, etc.) that have changed in recent nightly Rust versions
2. Features like const_deref and const_result_drop no longer exist in the current nightly
3. The impl Trait in associated types syntax has changed

These failures are not caused by the CI/CD changes - they reveal that the crate needs updates to work with the latest nightly toolchain. This should be addressed in a separate issue/PR.

The CI/CD pipeline itself is working correctly:

• Changelog Fragment Check: Passing
• Format/Lint checks: Running correctly (failing due to code issues)
• Test jobs: Running correctly on all platforms (failing due to compilation errors)

Test Plan

• Verify CI workflow runs on this PR
• Verify changelog fragment check passes
• Fix crate compilation issues in separate PR
• Verify lint job passes after code fixes
• Verify test jobs pass on all platforms after code fixes
• Verify build job passes after code fixes

Fixes #6

🤖 Generated with Claude Code

[konard]

CI/CD Pipeline Applied

I've successfully applied the modern CI/CD pipeline from rust-ai-driven-development-pipeline-template.

What was added:

• GitHub Actions workflow with lint, test (multi-platform), and build jobs
• Automatic and manual release workflows
• Fragment-based changelog system
• Pre-commit hooks configuration
• Contributing guidelines
• CI/CD utility scripts

About the CI Failures

The CI failures you're seeing are not caused by this PR - the pipeline is working correctly and running all checks. The failures reveal pre-existing issues with the crate's unstable Rust feature usage:

error: cannot find attribute `const_trait` in this scope
error[E0635]: unknown feature `const_deref`
error[E0635]: unknown feature `const_result_drop`
error[E0658]: `impl Trait` in associated types is unstable

The crate uses experimental nightly features that have changed/been removed in recent Rust nightly versions. This needs to be addressed in a separate issue/PR to update the crate to work with the current nightly toolchain.

Recommendation

1. Merge this PR to get the CI/CD infrastructure in place
2. Create a new issue to track updating the crate's unstable feature usage
3. Once the crate compiles again, the CI will automatically start passing

Let me know if you have any questions or need any changes to the CI/CD setup!

[konard]

🤖 Solution Draft Log

This log file contains the complete execution trace of the AI solution draft process.

💰 Cost estimation:

• Public pricing estimate: $4.223060 USD
• Calculated by Anthropic: $2.693644 USD
• Difference: $-1.529416 (-36.22%)
  📎 Log file uploaded as GitHub Gist (637KB)
  🔗 View complete solution draft log

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Now working session is ended, feel free to review and add any feedback on the solution draft.