feat: 完善导出设置与打印预览

apps/web/tests/mermaid-renderer.test.ts

@@ -0,0 +1,26 @@
+import { describe, expect, it, vi } from "vitest";
+import { renderMermaidDefinitions } from "../src/mermaid-renderer";
+
+describe("Mermaid 独立图表渲染", () => {
+  it("单个图表失败后继续渲染后续图表", async () => {
+    const renderDefinition = vi
+      .fn()
+      .mockRejectedValueOnce(new Error("语法错误"))
+      .mockResolvedValueOnce({ svg: "<svg>第二张图</svg>" });
+
+    const outcomes = await renderMermaidDefinitions(
+      ["invalid", "flowchart LR\nA --> B"],
+      renderDefinition
+    );
+
+    expect(renderDefinition).toHaveBeenCalledTimes(2);
+    expect(outcomes[0]).toMatchObject({
+      success: false,
+      error: expect.any(Error)
+    });
+    expect(outcomes[1]).toEqual({
+      success: true,
+      svg: "<svg>第二张图</svg>"
+    });
+  });
+});