feat(protocol): 可美 KM Seedream - 接入图片生成与编辑

web/test/channel-model-editor-form.test.ts

@@ -9,6 +9,13 @@ const protocols = [definition("disabled-text", "text", false), definition("text"
 const protocolsWithAudio = [...protocols, definition("audio", "audio")];
 
 describe("channel model editor drafts", () => {
+    test("Kemei Seedream selection initializes the image profile and preserves pricing", () => {
+        const draft = initialChannelModelValues(null, protocols);
+        draft.priceTiers[0].unitPrice = 19;
+        const next = changeChannelModelCapability({ ...draft, capability: "image", protocol: "km-kemei-seedream", modelKey: "doubao-seedream-5-0-pro-260628" }, [definition("km-kemei-seedream", "image")]);
+        expect(next.capabilityConfig?.image).toMatchObject({ references: { maxImages: 10, maskSupported: false }, maxOutputs: 1, size: { default: "2048x2048" } });
+        expect(next.priceTiers[0].unitPrice).toBe(19);
+    });
     test("new drafts select an enabled protocol and never share price state", () => {
         const first = initialChannelModelValues(null, protocols);
         first.priceTiers[0].unitPrice = 42;

web/test/image-size-presets.test.tsx

@@ -11,6 +11,19 @@ import { resolveImageRequestSize, validateImageSize } from "../src/services/api/
 import { buildGeminiImageGenerationConfig } from "../src/lib/gemini-image";
 
 describe("统一图片分辨率与宽高比", () => {
+    test("Seedream 5.0 shows 1.5K and retains the exact official 2K wide size", () => {
+        const profile = defaultImageCapabilityConfig("km-kemei-seedream", "doubao-seedream-5-0-pro-260628");
+        const intermediate = renderToStaticMarkup(<ImageSizePicker profile={profile} size="1536x1536" onChange={() => {}} />);
+        expect(intermediate).toMatch(/aria-pressed="true"[^>]*>1\.5K/);
+        expect(intermediate).toContain("1536 × 1536 px");
+        expect(intermediate).not.toMatch(/<button[^>]*>4K/);
+        const wide = renderToStaticMarkup(<ImageSizePicker profile={profile} size="2816x1584" onChange={() => {}} />);
+        expect(wide).toMatch(/aria-pressed="true"[^>]*>2K/);
+        expect(wide).toContain("2816 × 1584 px");
+        const reopened = normalizeModelCapabilityConfig({ version: 1, image: profile });
+        expect(reopened.image?.size.presets?.filter((p) => p.tier === "1.5k")).toHaveLength(8);
+        expect(resolveImageRequestSize(profile, "auto", "1536x1536")?.value).toBe("1536x1536");
+    });
     test("管理员档位开关按已有比例启用，部分比例不显示为关闭", () => {
         for (const model of ["midjourney-1k", "midjourney-2k"]) {
             const profile = defaultImageCapabilityConfig("cangyuan-midjourney-v82", model);

web/test/model-capabilities.test.ts

@@ -3,7 +3,23 @@ import test from "node:test";
 
 // Bun 直接执行 TypeScript 测试时需要保留扩展名；生产 tsconfig 不包含 test/。
 import { DEFAULT_VIDEO_PROMPT_MAX_CHARS, defaultModelCapabilityConfig, normalizeImageValue, normalizeVideoValue } from "../src/lib/model-capabilities.ts";
-import { imageTierAvailable } from "../src/lib/image-size-presets.ts";
+import { imageTierAvailable, imageResolutionTiers } from "../src/lib/image-size-presets.ts";
+
+test("Kemei Seedream defaults retain official 1K/1.5K/2K sizes without a 4K preset", () => {
+    for (const model of ["doubao-seedream-5-0-pro-260628", "doubao-seedream-5-0-flash-260915"]) {
+        const image = defaultModelCapabilityConfig("km-kemei-seedream", model).image!;
+        assert.equal(image.references.maxImages, 10);
+        assert.equal(image.references.maskSupported, false);
+        assert.equal(image.maxOutputs, 1);
+        assert.equal(image.size.default, "2048x2048");
+        assert.equal(image.quality.supported, false);
+        assert.equal(image.size.presets!.length, 24);
+        assert.deepEqual([...new Set(image.size.presets!.map((p) => p.tier))], ["1k", "1.5k", "2k"]);
+        assert.equal(image.size.presets!.find((p) => p.size === "2816x1584")?.tier, "2k");
+        assert.ok(imageResolutionTiers(image).includes("1.5k"));
+    }
+    assert.deepEqual(imageResolutionTiers(defaultModelCapabilityConfig("openai-image").image!), ["1k", "2k", "4k"]);
+});
 
 test("text multimodal capability is not guessed from a model name", () => {
     for (const model of ["gpt-4o", "gemini-2.5-pro", "doubao-seed"]) {