feat: better ping

[r1n04h]

Note

Low Risk
Low risk: extends the /ping health check payload and schema and updates its test; no auth, persistence, or payment logic is affected.

Overview
Enhances the /ping health check to return the running app version (from package.json) and uptime, and updates the Elysia response schema accordingly.

Bumps the package version to 1.3.1, adjusts the /ping test to assert the new fields, and replaces a few // @ts-ignore directives with // @ts-expect-error for stricter TypeScript intent.

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