fix(quota): use /v1/token_plan/remains and honor custom base URL

quotaEndpoint() ignored its baseUrl argument and rebuilt the host from a
`baseUrl.includes('minimaxi.com')` check, which broke `--base-url` /
custom gateways — it was the only endpoint in the file not using the
passed baseUrl. It also pointed at the legacy
`/v1/api/openplatform/coding_plan/remains` path; the server now serves
the quota under `/v1/token_plan/remains` (matching the Token Plan
naming). With a line-matched API key the old path returns
"cookie is missing, log in again" while the new path works.

- quotaEndpoint: return `${baseUrl}/v1/token_plan/remains`, dropping the
  host rewrite (REGIONS base URLs are already api-subdomain hosts).
- detect-region: probe the same new path.
- update endpoint/sdk/timeout mocks and add a custom-base-URL test.

Verified live on both lines: `quota show` renders quota over
GET .../v1/token_plan/remains for global and cn.

Author: kapelame

src/client/endpoints.ts

@@ -39,9 +39,7 @@ export function vlmEndpoint(baseUrl: string): string {
 }
 
 export function quotaEndpoint(baseUrl: string): string {
-  // Quota endpoint uses api subdomain
-  const host = baseUrl.includes('minimaxi.com') ? 'https://api.minimaxi.com' : 'https://api.minimax.io';
-  return `${host}/v1/api/openplatform/coding_plan/remains`;
+  return `${baseUrl}/v1/token_plan/remains`;
 }
 
 export function fileUploadEndpoint(baseUrl: string): string {

src/config/detect-region.ts

@@ -1,7 +1,7 @@
 import { REGIONS, type Region } from "./schema";
 import { readConfigFile, writeConfigFile } from "./loader";
 
-const QUOTA_PATH = "/v1/api/openplatform/coding_plan/remains";
+const QUOTA_PATH = "/v1/token_plan/remains";
 
 function quotaUrl(region: Region): string {
   return REGIONS[region] + QUOTA_PATH;

test/auth/timeout-fix.test.ts

@@ -29,7 +29,7 @@ describe('detect-region: probeRegion auth style fallback', () => {
   it('succeeds when endpoint only accepts Bearer token', async () => {
     server = createMockServer({
       routes: {
-        '/v1/api/openplatform/coding_plan/remains': (req) => {
+        '/v1/token_plan/remains': (req) => {
           if (req.headers.get('Authorization') === 'Bearer bearer-only-key') {
             return jsonResponse({ base_resp: { status_code: 0 } });
           }
@@ -55,7 +55,7 @@ describe('detect-region: probeRegion auth style fallback', () => {
   it('succeeds when endpoint only accepts x-api-key header', async () => {
     server = createMockServer({
       routes: {
-        '/v1/api/openplatform/coding_plan/remains': (req) => {
+        '/v1/token_plan/remains': (req) => {
           if (req.headers.get('x-api-key') === 'xapikey-only-key') {
             return jsonResponse({ base_resp: { status_code: 0 } });
           }
@@ -80,7 +80,7 @@ describe('detect-region: probeRegion auth style fallback', () => {
   it('falls back to global when key is invalid for all auth styles and regions', async () => {
     server = createMockServer({
       routes: {
-        '/v1/api/openplatform/coding_plan/remains': () =>
+        '/v1/token_plan/remains': () =>
           jsonResponse({ error: 'unauthorized' }, 401),
       },
     });

test/client/endpoints.test.ts

@@ -2,11 +2,15 @@ import { describe, it, expect } from 'bun:test';
 import { quotaEndpoint } from '../../src/client/endpoints';
 
 describe('quotaEndpoint', () => {
-  it('uses coding_plan/remains for global', () => {
-    expect(quotaEndpoint('https://api.minimax.io')).toBe('https://api.minimax.io/v1/api/openplatform/coding_plan/remains');
+  it('uses token_plan/remains for global', () => {
+    expect(quotaEndpoint('https://api.minimax.io')).toBe('https://api.minimax.io/v1/token_plan/remains');
   });
 
-  it('uses coding_plan/remains for cn', () => {
-    expect(quotaEndpoint('https://api.minimaxi.com')).toBe('https://api.minimaxi.com/v1/api/openplatform/coding_plan/remains');
+  it('uses token_plan/remains for cn', () => {
+    expect(quotaEndpoint('https://api.minimaxi.com')).toBe('https://api.minimaxi.com/v1/token_plan/remains');
+  });
+
+  it('honors a custom base URL', () => {
+    expect(quotaEndpoint('https://gateway.example.com')).toBe('https://gateway.example.com/v1/token_plan/remains');
   });
 });

test/sdk/quota.test.ts

@@ -4,7 +4,7 @@ import { MiniMaxSDK } from '../../src/sdk';
 describe('MiniMaxSDK.quota', () => {
   it('should get quota info successfully', async () => {
     const mockFetch = mock(async (url: string) => {
-      if (url.includes('/v1/api/openplatform/coding_plan/remains')) {
+      if (url.includes('/v1/token_plan/remains')) {
         return new Response(JSON.stringify({
           model_remains: [
             {