feat(media-supply): add image upload functionality and enhance HTML handling in article processing

server/internal/tenant/app/media_supply_test.go

@@ -292,8 +292,51 @@ func TestMeijiequanCreateOrderFormMatchesUpstreamShape(t *testing.T) {
 
 func TestMeijiequanArticleHTMLKeepsExistingHTML(t *testing.T) {
 	input := `<p><img src="http://example.test/a.png" title="x" _src="http://example.test/a.png" alt="a"></p><p>正文</p>`
-	if got := meijiequanArticleHTML(input); got != input {
-		t.Fatalf("expected html passthrough, got %s", got)
+	got := meijiequanArticleHTML(input)
+	if !strings.Contains(got, `<p><img src="http://example.test/a.png"`) ||
+		!strings.Contains(got, `title="x"`) ||
+		!strings.Contains(got, `_src="http://example.test/a.png"`) ||
+		!strings.Contains(got, `alt="a"`) ||
+		!strings.Contains(got, `<p>正文</p>`) {
+		t.Fatalf("expected html image and paragraphs to be preserved, got %s", got)
+	}
+}
+
+func TestMeijiequanArticleHTMLConvertsMilkdownMixedMarkdown(t *testing.T) {
+	input := strings.Join([]string{
+		"# 标题",
+		"",
+		`<p class="article-editor-image article-editor-image--center" align="center"><img src="http://example.test/a.webp" alt="图注" title="图注" data-asset-id="88" /></p>`,
+		"",
+		"## 小标题",
+		"",
+		"- 第一条",
+		"- **第二条**",
+		"",
+		"| 维度 | 说明 |",
+		"| --- | --- |",
+		"| 环保 | ENF |",
+	}, "\n")
+
+	got := meijiequanArticleHTML(input)
+	if !strings.Contains(got, "<h1>标题</h1>") ||
+		!strings.Contains(got, `<img src="http://example.test/a.webp"`) ||
+		!strings.Contains(got, `_src="http://example.test/a.webp"`) ||
+		strings.Contains(got, "data-asset-id") ||
+		!strings.Contains(got, "<h2>小标题</h2>") ||
+		!strings.Contains(got, "<li>第一条</li>") ||
+		!strings.Contains(got, "<strong>第二条</strong>") ||
+		!strings.Contains(got, "<table>") ||
+		!strings.Contains(got, "<td>ENF</td>") {
+		t.Fatalf("unexpected mixed markdown html: %s", got)
+	}
+}
+
+func TestMeijiequanArticleHTMLBackfillsImageSrcFromOriginalSrc(t *testing.T) {
+	got := meijiequanArticleHTML(`<p><img _src="http://example.test/original.png" alt="a"></p>`)
+	if !strings.Contains(got, `src="http://example.test/original.png"`) ||
+		!strings.Contains(got, `_src="http://example.test/original.png"`) {
+		t.Fatalf("expected src and _src to be normalized, got %s", got)
 	}
 }