fix: 完善本地与网络图片渲染

apps/web/tests/app-version.test.ts

@@ -6,7 +6,7 @@ import {
 
 describe("应用版本", () => {
   it("从统一构建版本生成标题徽标", () => {
-    expect(APP_VERSION).toBe("0.4.0");
-    expect(APP_VERSION_LABEL).toBe("v0.4.0");
+    expect(APP_VERSION).toBe("0.4.1");
+    expect(APP_VERSION_LABEL).toBe("v0.4.1");
   });
 });

apps/web/tests/document-image-fit.test.ts

@@ -0,0 +1,53 @@
+// @vitest-environment happy-dom
+
+import { defaultExportConfig } from "@md-to-pdf/core";
+import { describe, expect, it } from "vitest";
+import { fitDocumentImagesToPage } from "../src/document-image-fit";
+
+describe("Markdown 图片单页适配", () => {
+  it("标记独立图片段落并将超高图片缩放到单页", () => {
+    const root = document.createElement("div");
+    root.innerHTML =
+      '<p> <img class="md-document-image" src="data:image/png;base64,AA=="> </p>';
+    const image = root.querySelector("img")!;
+    Object.defineProperties(image, {
+      naturalWidth: { value: 1000 },
+      naturalHeight: { value: 3000 }
+    });
+
+    fitDocumentImagesToPage(root, defaultExportConfig);
+
+    expect(image.parentElement?.classList).toContain(
+      "md-document-image-block"
+    );
+    expect(image.dataset.pageHeightFitted).toBe("true");
+    expect(image.parentElement?.dataset.pageHeightFitted).toBe("true");
+    expect(
+      image.parentElement?.style.getPropertyValue("margin-block")
+    ).toBe("0");
+    expect(Number.parseFloat(image.style.height)).toBeCloseTo(
+      1000.5748,
+      3
+    );
+    expect(Number.parseFloat(image.style.width)).toBeCloseTo(
+      333.5249,
+      3
+    );
+  });
+
+  it("普通横图保持主题控制的尺寸", () => {
+    const root = document.createElement("div");
+    root.innerHTML =
+      '<p><img class="md-document-image" src="data:image/png;base64,AA=="></p>';
+    const image = root.querySelector("img")!;
+    Object.defineProperties(image, {
+      naturalWidth: { value: 1600 },
+      naturalHeight: { value: 900 }
+    });
+
+    fitDocumentImagesToPage(root, defaultExportConfig);
+
+    expect(image.dataset.pageHeightFitted).toBeUndefined();
+    expect(image.style.height).toBe("");
+  });
+});