update: sync local changes with latest features

tests/unit/qoder.test.js

@@ -466,4 +466,50 @@ describe("wrapQoderSSE", () => {
     const wrapped = wrapQoderSSE(r, "qoder/auto");
     expect(wrapped).toBe(r);
   });
+
+  // Regression: Qoder quota-exceeded returns HTTP 200 with a non-200
+  // statusCodeValue inside the SSE envelope. The first-chunk peek must
+  // detect this and return an error Response (not HTTP 200).
+  it("first-chunk quota error (429 envelope) returns error Response with proper status", async () => {
+    const errorBody = JSON.stringify({
+      code: "112",
+      message: JSON.stringify({ pricingUrl: "https://qoder.com/pricing" }),
+    });
+    const env = JSON.stringify({ statusCodeValue: 429, body: errorBody });
+    const wrapped = await wrapQoderSSE(
+      makeResponse([`data: ${env}\n\n`], { status: 200 }),
+      "qoder/qmodel_latest",
+    );
+    // Must NOT be 200 — the error should be surfaced as a proper HTTP error
+    expect(wrapped.status).toBe(429);
+    expect(wrapped.ok).toBe(false);
+    const json = await wrapped.json();
+    expect(json.error.message).toContain("quota exceeded");
+  });
+
+  // Regression: when a mid-stream error arrives after some successful chunks,
+  // the shared midStreamError object must be populated so that
+  // handleNonStreamingResponse and buildOnStreamComplete can trigger cooldown.
+  it("mid-stream error populates the shared midStreamError object", async () => {
+    const goodInner = JSON.stringify({ choices: [{ delta: { content: "hi" } }] });
+    const goodEnv = JSON.stringify({ statusCodeValue: 200, body: goodInner });
+    const errorBody = JSON.stringify({
+      code: "112",
+      message: JSON.stringify({ pricingUrl: "https://qoder.com/pricing" }),
+    });
+    const errorEnv = JSON.stringify({ statusCodeValue: 429, body: errorBody });
+
+    const midStreamError = {};
+    const wrapped = await wrapQoderSSE(
+      makeResponse([`data: ${goodEnv}\n\ndata: ${errorEnv}\n\n`], { status: 200 }),
+      "qoder/qmodel_latest",
+      midStreamError,
+    );
+    await drain(wrapped);
+
+    expect(midStreamError.error).toBeDefined();
+    expect(midStreamError.error.status).toBe(429);
+    expect(midStreamError.error.message).toContain("quota exceeded");
+    expect(midStreamError.error.errorCode).toBe("112");
+  });
 });