feat: use @ota-meshi/ast-token-store

[ota-meshi]

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🦋 Changeset detected

Latest commit: 75701d2

The changes in this PR will be included in the next version bump.

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eslint-plugin-yml	Minor

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Pull request overview

This PR refactors the token store implementation by replacing the custom TokenStore class with the external @ota-meshi/ast-token-store package. This change improves maintainability by delegating token management to a dedicated library and enhances the API with additional method overloads and better type safety.

Changes:

• Replaced custom TokenStore implementation with @ota-meshi/ast-token-store package
• Updated YAMLSourceCode class with enhanced method signatures and comprehensive TypeScript overloads
• Modified test suite to use a helper function for creating token stores with proper configuration

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
package.json	Added @ota-meshi/ast-token-store dependency
src/language/token-store.ts	Removed entire custom TokenStore implementation (506 lines deleted)
src/language/yaml-source-code.ts	Integrated external TokenStore with updated imports, enhanced method overloads, and simplified isSpaceBetween implementation
tests/src/language/token-store.ts	Updated tests to use createStore helper function and import TokenStore from external package
.changeset/real-fireants-beg.md	Added changeset documenting the feature

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