test(open-sse): golden lock provider.js translate-path (A1-prep)

Snapshot buildProviderUrl/buildProviderHeaders/getTargetFormat for all providers
before merging the translate-path with executor URL/header builders.

Co-authored-by: Cursor <cursoragent@cursor.com>

tests/translator/golden-provider-service.test.js

@@ -0,0 +1,68 @@
+// A1 GOLDEN: lock OUTPUT của services/provider.js (translate route path) trên code CŨ.
+// buildProviderUrl/buildProviderHeaders/getTargetFormat — đường SONG SONG với executor.
+// Mục tiêu: trước khi hợp nhất 2 đường, chốt behavior translate-path hiện tại.
+import { describe, it, expect } from "vitest";
+import { PROVIDERS } from "../../open-sse/config/providers.js";
+import {
+  buildProviderUrl,
+  buildProviderHeaders,
+  getTargetFormat,
+} from "../../open-sse/services/provider.js";
+
+const API_KEY_CRED = { apiKey: "sk-test-APIKEY", providerSpecificData: {} };
+const OAUTH_CRED = { accessToken: "tok-test-ACCESS", providerSpecificData: {} };
+
+// Khử token + field động (github x-request-id uuid, kimi device-id) để snapshot ổn định.
+function sanitize(headers) {
+  const out = {};
+  for (const [k, v] of Object.entries(headers)) {
+    out[k] = typeof v === "string"
+      ? v.replace(/Bearer .+/, "Bearer <TOK>")
+          .replace(/sk-test-APIKEY|tok-test-ACCESS/g, "<CRED>")
+          .replace(/kimi-\d{10,}/g, "kimi-<TS>")
+          .replace(/^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/i, "<UUID>")
+      : v;
+  }
+  return out;
+}
+
+const providerIds = Object.keys(PROVIDERS).sort();
+
+function safe(fn) {
+  try { return fn(); } catch (e) { return `THROW: ${e.message}`; }
+}
+
+describe("GOLDEN provider.js buildProviderUrl (translate path)", () => {
+  for (const pid of providerIds) {
+    it(`${pid} → url`, () => {
+      const snap = {
+        stream: safe(() => buildProviderUrl(pid, "test-model", true, {})),
+        nonStream: safe(() => buildProviderUrl(pid, "test-model", false, {})),
+      };
+      expect(snap).toMatchSnapshot();
+    });
+  }
+});
+
+describe("GOLDEN provider.js buildProviderHeaders (translate path)", () => {
+  for (const pid of providerIds) {
+    it(`${pid} → headers`, () => {
+      const cred = PROVIDERS[pid].noAuth ? {} : API_KEY_CRED;
+      const credOauth = PROVIDERS[pid].noAuth ? {} : OAUTH_CRED;
+      const snap = {
+        apiKey: safe(() => sanitize(buildProviderHeaders(pid, cred, true))),
+        oauth: safe(() => sanitize(buildProviderHeaders(pid, credOauth, true))),
+        nonStream: safe(() => sanitize(buildProviderHeaders(pid, cred, false))),
+      };
+      expect(snap).toMatchSnapshot();
+    });
+  }
+});
+
+describe("GOLDEN provider.js getTargetFormat", () => {
+  it("all providers → format", () => {
+    const snap = {};
+    for (const pid of providerIds) snap[pid] = safe(() => getTargetFormat(pid));
+    expect(snap).toMatchSnapshot();
+  });
+});