fix(kb-deep-analyzer): 优化文档格式

- date 改为视频发布日期（pubtime）
- 添加 url 到 frontmatter
- 去掉建议行动章节
- 去掉 {% if timeline %} 和最后分析时间
- 简化模板结构

skills/kb-deep-analyzer/deep_analyzer.py

@@ -1211,21 +1211,11 @@ class TemplateLoader:
 - {{insight}}
 {% endfor %}
 
-## 建议行动
-{% for action in actions %}
-- [ ] {{action}}
-{% endfor %}
-
-{% if timeline %}
 ## 时间轴
 {% for entry in timeline %}
 ### {{entry.index}}. {{entry.start_time}} - {{entry.end_time}}
 {{entry.title}}: {{entry.summary}}
 {% endfor %}
-{% endif %}
-
----
-*分析时间: {{analyze_time}}*
 """,
         "article": """# {{title}}
 
@@ -1242,11 +1232,6 @@ class TemplateLoader:
 - {{insight}}
 {% endfor %}
 
-## 建议行动
-{% for action in actions %}
-- [ ] {{action}}
-{% endfor %}
-
 ---
 *分析时间: {{analyze_time}}*
 """
@@ -1506,17 +1491,31 @@ def result_to_dict(result: AnalysisResult) -> Dict:
 def generate_frontmatter(metadata: Dict, result: AnalysisResult) -> str:
     """生成 Markdown frontmatter"""
     tags = result.recommended_tags or result.main_topics[:5]
-    analyze_time = datetime.now().strftime('%Y-%m-%d %H:%M')
+    
+    # 格式化视频发布日期（使用 pubtime）
+    pubtime = metadata.get('pubtime', '')
+    if pubtime:
+        if isinstance(pubtime, (int, float)):
+            from datetime import datetime
+            date_str = datetime.fromtimestamp(pubtime).strftime('%Y-%m-%d')
+        else:
+            date_str = str(pubtime)[:10]
+    else:
+        date_str = ""
 
     fm = ["---", 
           f"title: \"{metadata.get('title', '未命名')}\"",
-          f"date: {datetime.now().strftime('%Y-%m-%d')}",
+          f"date: {date_str}",
           f"duration: {format_duration(metadata.get('duration', 0))}",
           f"author: {metadata.get('author', '未知')}",
-          f"analyze_time: {analyze_time}",
           f"bvid: {metadata.get('bvid', '')}",
           f"platform: {metadata.get('platform', 'bilibili')}"]
     
+    # 添加视频 URL
+    url = metadata.get('url', '')
+    if url:
+        fm.append(f"url: {url}")
+
     if tags:
         fm.append("tags: [" + ", ".join(f'"{t}"' for t in tags) + "]")