增加即梦图片5.0和视频2.5的能力

tests/seedream-billing.test.ts

@@ -0,0 +1,19 @@
+import { describe, expect, it } from "vitest";
+import { calculateSeedreamAmountFen, SEEDREAM_50_PRO_MODEL } from "@/lib/server/seedream-billing";
+import { DEFAULT_BILLING_PRICE_RULES } from "@/lib/server/billing-catalog";
+
+describe("Seedream 5.0 Pro billing", () => {
+  it("keeps official output and reference image rates under the 1.2x markup", () => {
+    expect(calculateSeedreamAmountFen({ outputPriceFen: 30, referenceImageCount: 0, markupMultiplier: 1.2 })).toBe(36);
+    expect(calculateSeedreamAmountFen({ outputPriceFen: 30, referenceImageCount: 3, markupMultiplier: 1.2 })).toBe(41);
+    expect(calculateSeedreamAmountFen({ outputPriceFen: 60, referenceImageCount: 3, markupMultiplier: 1.2 })).toBe(77);
+    expect(calculateSeedreamAmountFen({ outputPriceFen: 60, referenceImageCount: 10, markupMultiplier: 1.2 })).toBe(94);
+  });
+
+  it("seeds an independent 5.0 Pro price rule without replacing Jimeng 4.6", () => {
+    expect(DEFAULT_BILLING_PRICE_RULES).toEqual(expect.arrayContaining([
+      expect.objectContaining({ id: "base-volcengine-jimeng-seedream46", reqKey: "jimeng_seedream46_cvtob" }),
+      expect.objectContaining({ id: "base-seedream-5-0-pro", provider: "seedream", reqKey: SEEDREAM_50_PRO_MODEL, standardUnitPriceFen: 30 })
+    ]));
+  });
+});