fix: migrate quota endpoints from www to api subdomain

The quota API has moved to api.minimaxi.com / api.minimax.io.
Region detection was still using the old www subdomain, causing
probe failures. Also skip env-key prompt when --api-key is
explicitly provided.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: RyanLee-Dev

src/client/endpoints.ts

@@ -39,8 +39,8 @@ export function vlmEndpoint(baseUrl: string): string {
 }
 
 export function quotaEndpoint(baseUrl: string): string {
-  // Quota endpoint uses www subdomain, not api subdomain
-  const host = baseUrl.includes('minimaxi.com') ? 'https://www.minimaxi.com' : 'https://www.minimax.io';
+  // 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`;
 }
 

src/commands/auth/login.ts

@@ -32,7 +32,7 @@ export default defineCommand({
   ],
   async run(config: Config, flags: GlobalFlags) {
     const envKey = process.env.MINIMAX_API_KEY;
-    if (envKey) {
+    if (envKey && !flags.apiKey) {
       const maskedEnvKey = maskToken(envKey);
       if (isInteractive({ nonInteractive: config.nonInteractive })) {
         const { confirm } = await import('@clack/prompts');

src/config/detect-region.ts

@@ -4,7 +4,7 @@ import { readConfigFile, writeConfigFile } from './loader';
 const QUOTA_PATH = '/v1/api/openplatform/coding_plan/remains';
 
 function quotaUrl(region: Region): string {
-  return REGIONS[region].replace('://api.', '://www.') + QUOTA_PATH;
+  return REGIONS[region] + QUOTA_PATH;
 }
 
 async function probeRegion(region: Region, apiKey: string, timeoutMs: number): Promise<boolean> {