fix(providers): add missing modelsUrl for qwen-cloud-token-plan (#13764)

Merged. One missing field, one very concrete symptom: without `modelsUrl` the import silently fell back to the local catalog with "API unavailable". The test asserts both the registry entry and the derivation, so a future registry edit cannot drop it again.

Validated as a combined board first (this PR merged with the 21 siblings of the same wave on the release tip): eslint with the frozen suppressions, typecheck:core, check:open-sse-typecheck, complexity, cognitive-complexity, changelog-integrity, i18n new-key coverage, docs-counts, docs-sync, migration-numbering, provider-consistency and a duplicate-identifier audit all green, plus 176 passing / 0 failing focused node:test cases across the 25 test files the wave touches and the dashboard test under Vitest (2/0). Then re-validated alone on the fresh tip before this merge: conflicts re-resolved, file sizes rebaselined for this PR's own growth, eslint and this PR's focused tests re-run.

Thank you.

open-sse/config/providers/registry/qwen-cloud-token-plan/index.ts

@@ -7,6 +7,7 @@ export const qwen_cloud_token_planProvider: RegistryEntry = {
   executor: "default",
   baseUrl:
     "https://token-plan.ap-southeast-1.maas.aliyuncs.com/compatible-mode/v1/chat/completions",
+  modelsUrl: "https://token-plan.ap-southeast-1.maas.aliyuncs.com/compatible-mode/v1/models",
   authType: "apikey",
   authHeader: "bearer",
   models: [

tests/unit/qwen-cloud-token-plan-discovery.test.ts

@@ -0,0 +1,47 @@
+import test from "node:test";
+import assert from "node:assert/strict";
+
+import { qwen_cloud_token_planProvider } from "../../open-sse/config/providers/registry/qwen-cloud-token-plan/index.ts";
+import { deriveConfigFromRegistryModelsUrl } from "../../src/app/api/providers/[id]/models/discoveryConfig.ts";
+
+const SPEC_MODELS_URL =
+  "https://token-plan.ap-southeast-1.maas.aliyuncs.com/compatible-mode/v1/models";
+
+test("qwen-cloud-token-plan registry entry exposes the live /v1/models URL", () => {
+  assert.equal(qwen_cloud_token_planProvider.id, "qwen-cloud-token-plan");
+  // Without modelsUrl, deriveConfigFromRegistryModelsUrl() returns undefined and
+  // model discovery falls back to the local catalog
+  // ("API unavailable — using local catalog", issue #13506).
+  assert.equal(qwen_cloud_token_planProvider.modelsUrl, SPEC_MODELS_URL);
+});
+
+test("deriveConfigFromRegistryModelsUrl covers qwen-cloud-token-plan", () => {
+  const config = deriveConfigFromRegistryModelsUrl("qwen-cloud-token-plan");
+  assert.ok(config, "expected a discovery config derived from the registry modelsUrl");
+  assert.equal(config.url, SPEC_MODELS_URL);
+  assert.equal(config.method, "GET");
+  assert.equal(config.authHeader, "Authorization");
+  assert.equal(config.authPrefix, "Bearer ");
+});
+
+test("derived config parses the token-plan OpenAI-style list response", () => {
+  const config = deriveConfigFromRegistryModelsUrl("qwen-cloud-token-plan");
+  assert.ok(config);
+  // Shape verified manually against the live endpoint in issue #13506.
+  const live = {
+    first_id: "model-id-0",
+    data: [
+      { created: 1785722409, owned_by: "system", id: "qwen3.8-max", object: "model" },
+      { created: 1787731683, owned_by: "system", id: "qwen3.8-flash", object: "model" },
+    ],
+    last_id: "model-id-11",
+    has_more: false,
+    object: "list",
+  };
+  const models = config.parseResponse(live) as Array<{ id: string }>;
+  assert.equal(models.length, 2);
+  assert.deepEqual(
+    models.map((m) => m.id),
+    ["qwen3.8-max", "qwen3.8-flash"]
+  );
+});