refactor: 移除bilibili_extractor插件，改用obsidian-kb

- 删除 bilibili_extractor.py 及相关文档和配置
- 删除 bilibili_venv 虚拟环境
- 删除测试脚本和生成的B站笔记
- 以后使用 skills/obsidian-kb 提供的B站提取功能

test_original_extractor.py

@@ -0,0 +1,61 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+"""
+测试原始 bilibili_extractor.py
+"""
+import sys
+import os
+
+sys.path.insert(0, '/home/admin/.openclaw/workspace')
+
+import asyncio
+from bilibili_extractor import BilibiliExtractor
+
+
+async def main():
+    """主函数"""
+    bvid = "BV1MnFNz5EDL"
+
+    # 创建提取器（无头模式）
+    extractor = BilibiliExtractor(headless=True)
+
+    try:
+        await extractor.init_browser()
+
+        print(f"\n{'='*60}")
+        print(f"开始提取视频: {bvid}")
+        print(f"{'='*60}")
+
+        data = await extractor.extract_video_info(bvid)
+
+        if data and data.get('video_info'):
+            info = data['video_info']
+            print(f"\n{'='*60}")
+            print("视频信息提取成功！")
+            print(f"{'='*60}")
+            print(f"标题: {info.get('title', '未知')}")
+            print(f"UP主: {info.get('author', '未知')}")
+            print(f"时长: {info.get('duration', '未知')}")
+            print(f"播放量: {info.get('view', 0):,}")
+            print(f"点赞: {info.get('like', 0):,}")
+
+            subtitles = data.get('subtitles', [])
+            print(f"\n字幕数量: {len(subtitles)}")
+
+            return True
+        else:
+            print("\n❌ 提取视频信息失败")
+            return False
+
+    except Exception as e:
+        print(f"\n❌ 发生错误: {e}")
+        import traceback
+        traceback.print_exc()
+        return False
+    finally:
+        await extractor.close()
+
+
+if __name__ == '__main__':
+    result = asyncio.run(main())
+    sys.exit(0 if result else 1)