fix(providers): remove Qwen provider support

Qwen OAuth flow (portal.qwen.ai) stopped working reliably; drop the
executor, registry entry, OAuth provider/service, token refresh
profile, usage handler, and related test coverage and baselines.

open-sse/services/tokenRefresh.js

@@ -6,7 +6,6 @@ import {
   refreshKimiToken,
   refreshClaudeOAuthToken,
   refreshGoogleToken,
-  refreshQwenToken,
   refreshCodexToken,
   refreshKiroToken,
   refreshIflowToken,
@@ -26,7 +25,6 @@ export {
   refreshKimiToken,
   refreshClaudeOAuthToken,
   refreshGoogleToken,
-  refreshQwenToken,
   refreshCodexToken,
   refreshKiroToken,
   refreshIflowToken,
@@ -137,7 +135,6 @@ const REFRESH_HANDLERS = {
   antigravity: (c, log) => refreshGoogleToken(c.refreshToken, PROVIDERS.antigravity.clientId, PROVIDERS.antigravity.clientSecret, log),
   claude: (c, log) => refreshClaudeOAuthToken(c.refreshToken, log),
   codex: (c, log) => refreshCodexToken(c.refreshToken, log),
-  qwen: (c, log) => refreshQwenToken(c.refreshToken, log),
   iflow: (c, log) => refreshIflowToken(c.refreshToken, log),
   github: (c, log) => refreshGitHubToken(c.refreshToken, log),
   kiro: (c, log) => refreshKiroToken(c.refreshToken, c.providerSpecificData, log),
@@ -205,7 +202,6 @@ export function formatProviderCredentials(provider, credentials, log) {
       };
 
     case "codex":
-    case "qwen":
     case "iflow":
     case "openai":
     case "openrouter":

open-sse/services/tokenRefresh/providers.js

@@ -40,11 +40,6 @@ const REFRESH_PROFILES = {
     url: () => OAUTH_ENDPOINTS.anthropic.token,
     dedupKey: "claude",
   },
-  qwen: {
-    url: () => OAUTH_ENDPOINTS.qwen.token,
-    dedupKey: "qwen",
-    parse: (tokens) => tokens.resource_url ? { providerSpecificData: { resourceUrl: tokens.resource_url } } : {},
-  },
   iflow: {
     url: () => OAUTH_ENDPOINTS.iflow.token,
     dedupKey: "iflow",
@@ -191,11 +186,6 @@ export async function refreshGoogleToken(refreshToken, clientId, clientSecret, l
   }, log);
 }
 
-// Qwen: form body + clientId, surfaces resource_url. Delegate to refreshAccessToken("qwen", ...).
-export async function refreshQwenToken(refreshToken, log) {
-  return refreshAccessToken("qwen", refreshToken, {}, log);
-}
-
 export function classifyOAuthRefreshError(errorText = "", status = 0) {
   let parsed = null;
   try {

open-sse/services/usage.js

@@ -16,7 +16,6 @@ import { getKimiUsage } from "./usage/kimi.js";
 import { getDeepseekUsage } from "./usage/deepseek.js";
 import { resolveQoderCredentials } from "./qoderModels.js";
 import {
-  getQwenUsage,
   getIflowUsage,
   getOllamaUsage,
   getGlmUsage,
@@ -43,7 +42,6 @@ const USAGE_HANDLERS = {
     const resolved = await resolveQoderCredentials(c, c.proxyOptions).catch(() => null);
     return getQoderUsage(resolved?.accessToken || c.accessToken, c.proxyOptions);
   },
-  qwen: (c) => getQwenUsage(c.accessToken, c.providerSpecificData),
   iflow: (c) => getIflowUsage(c.accessToken),
   ollama: (c) => getOllamaUsage(c.apiKey, c.providerSpecificData, c.proxyOptions),
   glm: (c) => getGlmUsage(c.apiKey, c.provider, c.proxyOptions),

open-sse/services/usage/misc.js

@@ -1,5 +1,5 @@
 /**
- * Misc usage handlers (Qwen, iFlow, Ollama, GLM, Vercel AI Gateway, Qoder)
+ * Misc usage handlers (iFlow, Ollama, GLM, Vercel AI Gateway, Qoder)
  */
 
 import { proxyAwareFetch } from "../../utils/proxyFetch.js";
@@ -15,23 +15,6 @@ const GLM_QUOTA_URLS = {
 // Returns { balance: "95.50", total_used: "4.50" } (USD as decimal strings).
 const VERCEL_AI_GATEWAY_CREDITS_URL = U("vercel-ai-gateway").url;
 
-/**
- * Qwen Usage
- */
-export async function getQwenUsage(accessToken, providerSpecificData) {
-  try {
-    const resourceUrl = providerSpecificData?.resourceUrl;
-    if (!resourceUrl) {
-      return { message: "Qwen connected. No resource URL available." };
-    }
-
-    // Qwen may have usage endpoint at resource URL
-    return { message: "Qwen connected. Usage tracked per request." };
-  } catch (error) {
-    return { message: "Unable to fetch Qwen usage." };
-  }
-}
-
 /**
  * iFlow Usage
  */