Update MiniMax API endpoint

[doublezz10]

Description

With the release of MiniMax M3, the API usage endpoint has changed. Here is the new URL (copied from their docs here https://platform.minimax.io/docs/token-plan/faq#how-to-check-token-plan-usage):

curl --location 'https://www.minimax.io/v1/token_plan/remains'
--header 'Authorization: Bearer '
--header 'Content-Type: application/json'

(looks like they just changed coding_plan to token_plan

Steps to Reproduce

1. Try to check MiniMax usage with saved API key

Expected Behavior

Usage tracking works

Actual Behavior

" Could not parse usage data "

OpenUsage Version

0.6.24

Operating System

macOS (Apple Silicon)

Screenshots

Additional Context

No response

[robinebers]

This should be fixed (but can't test myself) in #536

[doublezz10]

Yes working on the US coding plan! I can't test the Chinese endpoint, though