fix(POSTV1-05): 修复生成请求与 Worker 重入

tests/worker/postv1-generation-polling-loop.test.ts

@@ -0,0 +1,28 @@
+import { afterEach, describe, expect, it, vi } from "vitest";
+
+import { GenerationPollingLoop } from "../../apps/worker/src/generation-polling-loop.js";
+
+describe("POSTV1-05 generation polling loop", () => {
+  afterEach(() => {
+    vi.useRealTimers();
+  });
+
+  it("does not start another processor call while the current call is unresolved", async () => {
+    vi.useFakeTimers();
+    let finishCurrentCall: (() => void) | undefined;
+    const processNext = vi.fn(() => new Promise<void>((resolve) => {
+      finishCurrentCall = resolve;
+    }));
+    const loop = new GenerationPollingLoop({ processNext }, 250);
+
+    await vi.advanceTimersByTimeAsync(1_000);
+    expect(processNext).toHaveBeenCalledTimes(1);
+
+    finishCurrentCall?.();
+    await Promise.resolve();
+    await vi.advanceTimersByTimeAsync(250);
+    expect(processNext).toHaveBeenCalledTimes(2);
+
+    loop.close();
+  });
+});

tests/worker/postv1-oneapi-runtime.test.ts

@@ -26,6 +26,14 @@ describe("POSTV1-02 OneAPI runtime adapter", () => {
       const headers = new Headers(init?.headers);
       expect(headers.get("authorization")).toBe("Bearer synthetic-runtime-token");
       expect(init?.redirect).toBe("error");
+      const payload = JSON.parse(String(init?.body)) as { messages: Array<{ content: unknown; role: string }> };
+      expect(payload.messages).toEqual([
+        {
+          content: "Generate exactly one image from the user's description. Return the generated image and do not answer with text only.",
+          role: "system",
+        },
+        { content: "一张用于本机验收的抽象色彩图", role: "user" },
+      ]);
       return new Response(JSON.stringify({
         choices: [{ message: { content: `![result](data:image/png;base64,${source.toString("base64")})` } }],
       }), { headers: { "content-type": "application/json" }, status: 200 });