fix(video): 火山方舟 - 解耦可信素材并修复音频组合参考 (#302)

web/test/canvas-model-policy.test.ts

@@ -3,7 +3,7 @@ import { describe, expect, test } from "bun:test";
 import { canvasConnectionError } from "../src/lib/canvas/canvas-connection-policy";
 import { assertCanvasImageReferenceLimit, buildGenerationConfig, canvasImageReferenceLimitError, resolveCanvasGenerationModel } from "../src/lib/canvas/canvas-project-generation";
 import { defaultModelCapabilityConfig } from "../src/lib/model-capabilities";
-import { groupModelsByDisplayName, modelCompatibilityError, modelGroupReferenceLimits, resolveCompatibleModel, resolveModelGenerationDefaults } from "../src/lib/model-selection";
+import { groupModelsByDisplayName, inferVideoOperation, modelCompatibilityError, modelGroupReferenceLimits, resolveCompatibleModel, resolveModelGenerationDefaults } from "../src/lib/model-selection";
 import { defaultConfig, normalizeModelOptionValue, type AiConfig, type ModelChannel } from "../src/stores/use-config-store";
 import { CanvasNodeType, type CanvasConnection, type CanvasNodeData } from "../src/types/canvas";
 
@@ -167,6 +167,12 @@ describe("逻辑模型选择", () => {
         expect(modelCompatibilityError(config, "relay::cinema-image", requirements)).toContain("参考音频");
     });
 
+    test("音频仅在单独参考时归类为音频生视频", () => {
+        expect(inferVideoOperation({ textCount: 1, imageCount: 0, videoCount: 0, audioCount: 1, characterCount: 0 })).toBe("audio_to_video");
+        expect(inferVideoOperation({ textCount: 1, imageCount: 1, videoCount: 0, audioCount: 1, characterCount: 0 })).toBe("reference_to_video");
+        expect(inferVideoOperation({ textCount: 1, imageCount: 0, videoCount: 1, audioCount: 1, characterCount: 0 })).toBe("reference_to_video");
+    });
+
     test("逻辑视频模型将 720 与 720p 视为同一分辨率", () => {
         const model = "cinema-720p";
         const channel: ModelChannel = {