Update obsidian-kb skill and add find-skills

- obsidian-kb: Add OCR processors (easyocr, tesseract)
- obsidian-kb: Fix subtitle detection with test files
- obsidian-kb: Add cookie verification script
- Add find-skills skill for discovering capabilities
- Add video processing scripts
- Update clawhub lock file

test_fixed_subtitle.py

@@ -0,0 +1,58 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+"""
+测试修复后的 B 站字幕提取
+"""
+import asyncio
+import json
+import sys
+import os
+
+# 添加项目路径
+sys.path.insert(0, os.path.join(os.path.dirname(__file__), 'skills', 'obsidian-kb'))
+
+from src.extractors.bilibili_extractor import BilibiliExtractor
+
+async def test_extract():
+    """测试提取器"""
+    # 创建提取器实例
+    extractor = BilibiliExtractor()
+
+    # 测试视频
+    bvid = "BV1yx411s7Jq"
+
+    print(f"测试视频: {bvid}")
+    print("=" * 60)
+
+    try:
+        # 直接调用异步方法
+        result = await extractor._extract_async(bvid)
+
+        print("\n✅ 提取成功！\n")
+        print("=" * 60)
+        print("元数据:")
+        print("=" * 60)
+        for key, value in result['metadata'].items():
+            print(f"  {key}: {value}")
+
+        print("\n" + "=" * 60)
+        print("字幕:")
+        print("=" * 60)
+        subtitle = result['subtitle']
+        if subtitle:
+            lines = subtitle.split('\n')
+            print(f"共 {len(lines)} 条字幕")
+            print("\n前 10 条字幕:")
+            print("\n".join(lines[:10]))
+            if len(lines) > 10:
+                print(f"\n...(还有 {len(lines) - 10} 条)")
+        else:
+            print("  该视频没有字幕")
+
+    except Exception as e:
+        print(f"\n❌ 测试失败: {e}")
+        import traceback
+        traceback.print_exc()
+
+if __name__ == '__main__':
+    asyncio.run(test_extract())