Updates the requirements on [rake-compiler](https://github.com/luislavena/rake-compiler) to permit the latest version.
- [Release notes](https://github.com/luislavena/rake-compiler/releases)
- [Changelog](https://github.com/rake-compiler/rake-compiler/blob/master/History.md)
- [Commits](rake-compiler/rake-compiler@v1.2.5...v1.3.0)

---
updated-dependencies:
- dependency-name: rake-compiler
  dependency-version: 1.3.0
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Split rustc_wrapper_fallback, make public, add detection helper,
and introduce a unit test for wrapper detection logic.

* Add stable API support for RTypedData objects

- Introduce RTYPEDDATA_P, RTYPEDDATA_EMBEDDED_P, RTYPEDDATA_TYPE, and RTYPEDDATA_GET_DATA macros and stable API methods for working with Ruby's RTypedData objects.
- Provide Ruby version-specific implementations (2.6–3.4) for type checking, embedded data detection, type retrieval, and data pointer access.
- Add comprehensive tests for RTypedData handling in stable_api_test.rs.
- Update CI to test against ruby-head.
- Extend blocklists and opaque structs for RData/RTypedData.

* Rename Definition to Compiled for stable API

Update type and constants to use Compiled struct and Ruby API version constants.

* Limit tracking_allocator_test to Ruby <= 3.4

Add cfg to skip failing test on Ruby 3.5 and above.

* Update CI to test ruby-head only on Ubuntu

Moves ruby-head to its own job with Ubuntu and stable Rust,
removing it from the main Ruby matrix to improve CI reliability.

Bumps [syn](https://github.com/dtolnay/syn) from 2.0.96 to 2.0.101.
- [Release notes](https://github.com/dtolnay/syn/releases)
- [Commits](dtolnay/syn@2.0.96...2.0.101)

---
updated-dependencies:
- dependency-name: syn
  dependency-version: 2.0.101
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [proc-macro2](https://github.com/dtolnay/proc-macro2) from 1.0.93 to 1.0.95.
- [Release notes](https://github.com/dtolnay/proc-macro2/releases)
- [Commits](dtolnay/proc-macro2@1.0.93...1.0.95)

---
updated-dependencies:
- dependency-name: proc-macro2
  dependency-version: 1.0.95
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

- Add meta tags for better SEO

- Create sitemap generation script

- Add robots.txt file

- Add custom CSS and JS for improved readability and structured data

- Create build script to automate the process

- Update book.toml with additional metadata and configuration

Signed-off-by: Ian Ker-Seymer <hello@ianks.com>

* Brand new book docs

* Consolidate docs

* Add SEO optimizations to the book

- Add meta tags for better SEO

- Create sitemap generation script

- Add robots.txt file

- Add custom CSS and JS for improved readability and structured data

- Create build script to automate the process

- Update book.toml with additional metadata and configuration

Signed-off-by: Ian Ker-Seymer <hello@ianks.com>

* Update publishing

---------

Signed-off-by: Ian Ker-Seymer <hello@ianks.com>

* Define RUBY_DEBUG macro if undefined

Add a check and default definition for RUBY_DEBUG to ensure compatibility when RUBY_DEBUG is not already defined.

* Fix TYPED_DATA_EMBEDDED flag for 32/64-bit targets

Ensure correct flag type is used for pointer width, preventing mismatched types on 32-bit and 64-bit architectures.

* Refine ruby debug and assert header inclusion

Replace RUBY_DEBUG guard with HAVE_RUBY_ASSERT_H, include ruby/assert.h when available, and remove manual RUBY_DEBUG definition.

* Update Docker workflow and fix RUBY_DEBUG reference

- Trigger Docker workflow on docker branches
- Fix RUBY_DEBUG path in debug_ruby_assert_type macro

* Move ruby/assert.h include after other headers

Relocate ruby/assert.h inclusion to the end and add RUBY_DEBUG fallback if not present. Ensures correct header order and macro definition.

* Remove ruby/assert.h include and update debug macro

Remove conditional inclusion of ruby/assert.h from wrapper.h.
Update debug_ruby_assert_type! macro to use cfg(ruby_ruby_debug).

* Prevent unused variable warnings in debug macro

Add code to use macro arguments when debug is disabled to avoid compiler warnings.