fix: 修复测试问题，提升测试通过率

修复内容:
- E2E测试命令执行方式：将 python -m uv run 改为 uv run
- HTML渲染器：添加 & 字符的HTML转义
- Presentation尺寸验证：添加尺寸值类型验证
- PPTX验证器：修复文本框检测兼容性
- 验证结果格式化：修复提示信息显示
- Mock配置：修复表格渲染等测试的Mock配置

测试结果:
- 修复前: 264 通过, 42 失败, 1 错误
- 修复后: 297 通过, 9 失败, 1 错误

剩余9个失败为待实现的功能增强(验证器模板变量验证)

renderers/html_renderer.py

@@ -30,12 +30,12 @@ class HtmlRenderer:
         elements_html = ""
 
         bg_style = ""
-        if slide_data.get('background'):
-            bg = slide_data['background']
-            if 'color' in bg:
+        if slide_data.get("background"):
+            bg = slide_data["background"]
+            if "color" in bg:
                 bg_style = f"background: {bg['color']};"
 
-        for elem in slide_data.get('elements', []):
+        for elem in slide_data.get("elements", []):
             try:
                 if isinstance(elem, TextElement):
                     elements_html += self.render_text(elem)
@@ -46,7 +46,9 @@ class HtmlRenderer:
                 elif isinstance(elem, ImageElement):
                     elements_html += self.render_image(elem, base_path)
             except Exception as e:
-                elements_html += f'<div class="element" style="color: red;">渲染错误: {str(e)}</div>'
+                elements_html += (
+                    f'<div class="element" style="color: red;">渲染错误: {str(e)}</div>'
+                )
 
         return f'''
         <div class="slide" style="{bg_style}">
@@ -70,18 +72,20 @@ class HtmlRenderer:
             top: {elem.box[1] * DPI}px;
             width: {elem.box[2] * DPI}px;
             height: {elem.box[3] * DPI}px;
-            font-size: {elem.font.get('size', 16)}pt;
-            color: {elem.font.get('color', '#000000')};
-            text-align: {elem.font.get('align', 'left')};
-            {'font-weight: bold;' if elem.font.get('bold') else ''}
-            {'font-style: italic;' if elem.font.get('italic') else ''}
+            font-size: {elem.font.get("size", 16)}pt;
+            color: {elem.font.get("color", "#000000")};
+            text-align: {elem.font.get("align", "left")};
+            {"font-weight: bold;" if elem.font.get("bold") else ""}
+            {"font-style: italic;" if elem.font.get("italic") else ""}
             display: flex;
             align-items: center;
             white-space: normal;
             overflow-wrap: break-word;
         """
 
-        content = elem.content.replace('<', '&lt;').replace('>', '&gt;')
+        content = (
+            elem.content.replace("&", "&amp;").replace("<", "&lt;").replace(">", "&gt;")
+        )
         return f'<div class="element text-element" style="{style}">{content}</div>'
 
     def render_shape(self, elem: ShapeElement):
@@ -95,23 +99,23 @@ class HtmlRenderer:
             str: HTML 代码
         """
         border_radius = {
-            'rectangle': '0',
-            'ellipse': '50%',
-            'rounded_rectangle': '8px'
-        }.get(elem.shape, '0')
+            "rectangle": "0",
+            "ellipse": "50%",
+            "rounded_rectangle": "8px",
+        }.get(elem.shape, "0")
 
         style = f"""
             left: {elem.box[0] * DPI}px;
             top: {elem.box[1] * DPI}px;
             width: {elem.box[2] * DPI}px;
             height: {elem.box[3] * DPI}px;
-            background: {elem.fill if elem.fill else 'transparent'};
+            background: {elem.fill if elem.fill else "transparent"};
             border-radius: {border_radius};
         """
 
         if elem.line:
             style += f"""
-                border: {elem.line.get('width', 1)}pt solid {elem.line.get('color', '#000000')};
+                border: {elem.line.get("width", 1)}pt solid {elem.line.get("color", "#000000")};
             """
 
         return f'<div class="element shape-element" style="{style}"></div>'
@@ -138,14 +142,14 @@ class HtmlRenderer:
                 cell_style = f"font-size: {elem.style.get('font_size', 14)}pt;"
 
                 if i == 0:
-                    if 'header_bg' in elem.style:
+                    if "header_bg" in elem.style:
                         cell_style += f"background: {elem.style['header_bg']};"
-                    if 'header_color' in elem.style:
+                    if "header_color" in elem.style:
                         cell_style += f"color: {elem.style['header_color']};"
 
-                cell_content = str(cell).replace('<', '&lt;').replace('>', '&gt;')
+                cell_content = str(cell).replace("<", "&lt;").replace(">", "&gt;")
                 cells_html += f'<td style="{cell_style}">{cell_content}</td>'
-            rows_html += f'<tr>{cells_html}</tr>'
+            rows_html += f"<tr>{cells_html}</tr>"
 
         return f'<table class="element table-element" style="{table_style}">{rows_html}</table>'