fix: correct the default value in the comment

[hujiulong]

Description

The default value of agentCardPath does not have a preceding slash.

a2a-js/src/constants.ts

Line 8 in c055b76

export const AGENT_CARD_PATH = ".well-known/agent-card.json";

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[gemini-code-assist]

Summary of Changes

Hello @hujiulong, 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 addresses a minor documentation inaccuracy by updating a comment that describes the default value for a configuration path. The change ensures that the documented default path accurately reflects its intended format, improving clarity for developers.

Highlights

• Documentation Correction: Corrected the default value for agentCardPath in the JSDoc comment for A2AExpressApp.setupRoutes, removing an erroneous leading slash from the path.

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[gemini-code-assist]

Code Review

This pull request corrects a documentation error in the setupRoutes method. The JSDoc for the agentCardPath parameter incorrectly showed the default value with a leading slash. The change removes the slash, aligning the documentation with the actual default value provided by the AGENT_CARD_PATH constant. This is a good fix that improves documentation accuracy.