feat: 实现 Chromium PDF 导出与精确预览

apps/web/tests/paged-render-target.test.ts

@@ -0,0 +1,14 @@
+import { describe, expect, it } from "vitest";
+import { resolvePagedRenderTarget } from "../src/paged-render-target";
+
+describe("分页文档渲染目标", () => {
+  it("默认使用网页预览目标", () => {
+    expect(resolvePagedRenderTarget("")).toBe("preview");
+    expect(resolvePagedRenderTarget("?target=unknown")).toBe("preview");
+  });
+
+  it("识别 PDF 渲染目标", () => {
+    expect(resolvePagedRenderTarget("?target=pdf")).toBe("pdf");
+    expect(resolvePagedRenderTarget("?foo=1&target=pdf")).toBe("pdf");
+  });
+});