Fixes to some wrong types definitions

[javisperez]

This pull request refactors and unifies the TypeScript types for Kitfile artifact layers, introducing a new LayerBase interface to provide consistent path and description fields across all artifact types. The documentation and code are updated for clarity, extensibility, and improved type safety.

Type system improvements:

• Introduced a new LayerBase interface that defines common fields (path and optional description) for all Kitfile artifact layer types, and updated all artifact interfaces (Model, Dataset, Code, Doc, Prompt) to extend this base for consistency. [1] [2] [3]

• Refactored the Model, Dataset, Code, Doc, and Prompt interfaces to remove redundant fields and ensure they inherit shared properties from LayerBase. Added new optional fields (e.g., framework, version for Model) and updated the type of parameters for flexibility. [1] [2]

• Updated the ModelPart interface to include an optional name property and removed unused fields for clarity. [1] [2]

Documentation updates:

• Revised the docs/types.md documentation to describe the new LayerBase interface, show inheritance in artifact types, and update property tables for accuracy and completeness. [1] [2]

Internal type alignment:

• Renamed LayerInfo to LayerIdentity for clarity, and updated internal Kitfile types to use the new naming and structure. Ensured that composite model parts (parts) are properly typed in internal representations.

Other:

• Bumped the package version from 0.0.3 to 0.0.4 in package.json.

[Copilot]

Pull request overview

This PR refactors the public Kitfile TypeScript types to unify shared layer fields via a new LayerBase interface, and updates the type documentation accordingly to improve consistency and extensibility.

Changes:

• Introduces LayerBase and refactors Model, Dataset, Code, Doc, and Prompt to extend it.
• Updates internal Kitfile layer identity naming (LayerInfo → LayerIdentity) and adjusts model parts typing.
• Updates docs/types.md and bumps package version to 0.0.4.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 3 comments.

File	Description
src/types/kitfile.ts	Adds LayerBase, refactors layer interfaces, and renames internal layer identity type.
docs/types.md	Documents LayerBase and updates Kitfile artifact type definitions/tables.
package.json	Version bump to 0.0.4.

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[amisevsk]

LGTM.

LayerBase is kind of a mixed abstraction, as technically not all layers include a description (modelpart layers), so it's introduced as a base interface for all layer types but then it's not used for modelpart layer types.