Support Rust with CI/CD and Release Infrastructure

[konard]

Summary

This PR adds a full Rust implementation of the lino-objects-codec library, providing feature parity with the existing Python and JavaScript implementations, along with comprehensive CI/CD and release infrastructure.

Implementation Details

• New LinoValue enum: Custom value type supporting all serializable types:

  • Null, Bool(bool), Int(i64), Float(f64), String(String)
  • Array(Vec<LinoValue>), Object(Vec<(String, LinoValue)>)
  • Note: Using a custom type instead of serde_json::Value because JSON doesn't support NaN/Infinity

• Full API parity:

  • encode() and decode() convenience functions
  • ObjectCodec struct for direct usage
  • Helper methods like LinoValue::object(), LinoValue::array(), accessor methods

• Features:

  • All basic types (null, bool, int, float, string)
  • Special float values (NaN, Infinity, -Infinity) - unlike JSON!
  • Collections (array, object)
  • Circular reference detection and handling
  • UTF-8 string support via base64 encoding
  • Comprehensive error handling with CodecError

CI/CD Infrastructure (Following Templates Best Practices)

• New rust.yml workflow:

  • Lint job with cargo fmt and clippy
  • Test job on multi-OS (ubuntu, macos, windows)
  • Build job for release builds
  • Changelog fragment validation
  • Auto-release on main branch push
  • Manual release via workflow dispatch

• Release management scripts (Node.js, using use-m):

  • create-github-release.mjs - Create GitHub releases from CHANGELOG.md
  • version-and-commit.mjs - Bump version and commit
  • bump-version.mjs - Bump version in Cargo.toml
  • collect-changelog.mjs - Collect changelog fragments
  • get-bump-type.mjs - Determine bump type from fragments

• Changelog fragment system (rust/changelog.d/):

  • Similar to JavaScript changesets and Python scriv
  • Fragment-based changelog to prevent merge conflicts
  • Automatic collection during releases

• Removed redundant test.yml: Tests are now integrated into language-specific workflows (js.yml, python.yml, rust.yml)

Files Added/Modified

New Files:

• .github/workflows/rust.yml - Rust CI/CD workflow
• rust/Cargo.toml - Updated with clippy lint configuration
• rust/CHANGELOG.md - Rust changelog
• rust/changelog.d/README.md - Changelog fragment documentation
• rust/scripts/*.mjs - Release management scripts
• rust/src/lib.rs - Main implementation with tests
• rust/examples/basic_usage.rs - Usage example
• rust/README.md - Rust-specific documentation

Removed:

• .github/workflows/test.yml - Redundant, now in language-specific workflows

Test Plan

• All 18 unit tests pass (cargo test)
• All 3 doc tests pass
• Code formatted with cargo fmt --check
• No clippy warnings (cargo clippy -- -D warnings)
• Example runs successfully (cargo run --example basic_usage)
• JavaScript tests pass (npm test)
• Python tests pass (pytest tests/ -v)
• CI workflows configured for all languages

Fixes #8

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[konard]

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[konard]

Get latest changes from default branch.

And also make sure we fully support all best practices from templates:

• https://github.com/link-foundation/js-ai-driven-development-pipeline-template
• https://github.com/link-foundation/python-ai-driven-development-pipeline-template
• https://github.com/link-foundation/rust-ai-driven-development-pipeline-template

Note that for each language we should have separate .changeset (or similar) folder.

But we can share .mjs scripts in root ./scripts folder if possible.

We should have no test.yml (it should be merged to the language versions), so end result would be 3 GitHub Workflows:

• js.yml
• python.yml
• rust.yml

[konard]

🤖 AI Work Session Started

Starting automated work session at 2025-12-31T08:46:42.059Z

The PR has been converted to draft mode while work is in progress.

This comment marks the beginning of an AI work session. Please wait working session to finish, and provide your feedback.

[konard]

🤖 Solution Draft Log

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

💰 Cost estimation:

• Public pricing estimate: $5.123404 USD
• Calculated by Anthropic: $3.458312 USD
• Difference: $-1.665092 (-32.50%)
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