feat: Add Custom Endpoint Support

[ekas-7]

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Bugs / Features

• Related issue(s) linked
• Tests for the changes have been added
• Docs have been added / updated
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What is the current behavior?

Currently, the VoltAgent Hono server does not support custom, user-defined endpoints. There is no mechanism to integrate custom routes in a way that they are automatically included in the server's startup display or the generated OpenAPI/Swagger documentation. This is detailed in issue #639.

What is the new behavior?

This PR introduces full support for custom endpoints in the VoltAgent Hono server. Key features include:

• Custom Endpoint Integration: Users can now define and register their own endpoints.
• Automatic Documentation: Custom endpoints are automatically discovered and included in the Swagger UI and OpenAPI specifications.
• Enhanced Startup Display: The server's startup log now lists both built-in and newly added custom endpoints.
• Developer Experience: The implementation is type-safe and error-tolerant for easy endpoint management.

fixes #639

Notes for reviewers

[changeset-bot]

🦋 Changeset detected

Latest commit: 6b94756

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

This PR includes changesets to release 1 package

Name	Type
@voltagent/server-hono	Minor

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[ekas-7]

@omeraplak can u rereview the PR . Thank you

[omeraplak]

🔥 Thank you