feat(js): add longRunning to supports and fix missing part exports

[MichaelDoyle]

Since "longRunning" was missing in TS, it caused some conflicts/mismatches between Go and Python when updating tools common and generating the schemas.

I think this is all that's required. But if not, let me know.

[gemini-code-assist]

Summary of Changes

Hello @MichaelDoyle, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request primarily focuses on enhancing the TypeScript schema definitions and exports for AI model capabilities and content parts. It addresses inconsistencies that led to schema generation conflicts between different language environments and ensures that all relevant part types are properly exposed for use.

Highlights

• Schema Alignment: The longRunning property has been added to the ModelInfoSchema in TypeScript, resolving schema generation conflicts between Go and Python.
• Missing Exports: Several *PartSchema and their corresponding types (e.g., MultipartToolResponseSchema, ReasoningPartSchema) were added to the exports in model.ts.
• Type Definition Correction: The type definitions for TextPart and ReasoningPart were corrected in parts.ts to accurately reflect their respective schemas.
• Type Assertion Removal: Unnecessary as ModelInfo type assertions were removed from veo.ts files in Google GenAI plugins, as the longRunning property is now correctly defined in the schema.

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Changelog

• js/ai/src/model-types.ts
  • Added the longRunning boolean property to the supports object within the ModelInfoSchema.
• js/ai/src/model.ts
  • Exported MultipartToolResponseSchema, ReasoningPartSchema, ResourcePartSchema, and their corresponding types (MultipartToolResponse, ReasoningPart, ResourcePart).
• js/ai/src/parts.ts
  • Moved the TextPart type definition to immediately follow TextPartSchema.
  • Corrected the ReasoningPart type definition to correctly infer from ReasoningPartSchema.
• js/plugins/google-genai/src/googleai/veo.ts
  • Removed the as ModelInfo type assertion from the info object in commonRef.
• js/plugins/google-genai/src/vertexai/veo.ts
  • Removed the as ModelInfo type assertion from the info object in commonRef.

Activity

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Code Review

This pull request introduces the longRunning property to the ModelInfoSchema to indicate if a model supports long-running operations. This change allows for the removal of type casting in the veo.ts files for Google AI and Vertex AI plugins. Additionally, the PR addresses missing exports for various Part schemas and types in model.ts, and corrects a definition error for ReasoningPart in parts.ts.