i18n: translate all Chinese comments, docstrings, and logger messages to English

Comprehensive translation of Chinese text to English across the entire codebase:

- api/: FastAPI server documentation and logger messages
- cache/: Cache abstraction layer comments and docstrings
- database/: Database models and MongoDB store documentation
- media_platform/: All platform crawlers (Bilibili, Douyin, Kuaishou, Tieba, Weibo, Xiaohongshu, Zhihu)
- model/: Data model documentation
- proxy/: Proxy pool and provider documentation
- store/: Data storage layer comments
- tools/: Utility functions and browser automation
- test/: Test file documentation

Preserved: Chinese disclaimer header (lines 10-18) for legal compliance

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

media_platform/kuaishou/help.py

@@ -26,59 +26,59 @@ from model.m_kuaishou import VideoUrlInfo, CreatorUrlInfo
 
 def parse_video_info_from_url(url: str) -> VideoUrlInfo:
     """
-    从快手视频URL中解析出视频ID
-    支持以下格式:
-    1. 完整视频URL: "https://www.kuaishou.com/short-video/3x3zxz4mjrsc8ke?authorId=3x84qugg4ch9zhs&streamSource=search"
-    2. 纯视频ID: "3x3zxz4mjrsc8ke"
+    Parse video ID from Kuaishou video URL
+    Supports the following formats:
+    1. Full video URL: "https://www.kuaishou.com/short-video/3x3zxz4mjrsc8ke?authorId=3x84qugg4ch9zhs&streamSource=search"
+    2. Pure video ID: "3x3zxz4mjrsc8ke"
 
     Args:
-        url: 快手视频链接或视频ID
+        url: Kuaishou video link or video ID
     Returns:
-        VideoUrlInfo: 包含视频ID的对象
+        VideoUrlInfo: Object containing video ID
     """
-    # 如果不包含http且不包含kuaishou.com，认为是纯ID
+    # If it doesn't contain http and doesn't contain kuaishou.com, consider it as pure ID
     if not url.startswith("http") and "kuaishou.com" not in url:
         return VideoUrlInfo(video_id=url, url_type="normal")
 
-    # 从标准视频URL中提取ID: /short-video/视频ID
+    # Extract ID from standard video URL: /short-video/video_ID
     video_pattern = r'/short-video/([a-zA-Z0-9_-]+)'
     match = re.search(video_pattern, url)
     if match:
         video_id = match.group(1)
         return VideoUrlInfo(video_id=video_id, url_type="normal")
 
-    raise ValueError(f"无法从URL中解析出视频ID: {url}")
+    raise ValueError(f"Unable to parse video ID from URL: {url}")
 
 
 def parse_creator_info_from_url(url: str) -> CreatorUrlInfo:
     """
-    从快手创作者主页URL中解析出创作者ID
-    支持以下格式:
-    1. 创作者主页: "https://www.kuaishou.com/profile/3x84qugg4ch9zhs"
-    2. 纯ID: "3x4sm73aye7jq7i"
+    Parse creator ID from Kuaishou creator homepage URL
+    Supports the following formats:
+    1. Creator homepage: "https://www.kuaishou.com/profile/3x84qugg4ch9zhs"
+    2. Pure ID: "3x4sm73aye7jq7i"
 
     Args:
-        url: 快手创作者主页链接或user_id
+        url: Kuaishou creator homepage link or user_id
     Returns:
-        CreatorUrlInfo: 包含创作者ID的对象
+        CreatorUrlInfo: Object containing creator ID
     """
-    # 如果不包含http且不包含kuaishou.com，认为是纯ID
+    # If it doesn't contain http and doesn't contain kuaishou.com, consider it as pure ID
     if not url.startswith("http") and "kuaishou.com" not in url:
         return CreatorUrlInfo(user_id=url)
 
-    # 从创作者主页URL中提取user_id: /profile/xxx
+    # Extract user_id from creator homepage URL: /profile/xxx
     user_pattern = r'/profile/([a-zA-Z0-9_-]+)'
     match = re.search(user_pattern, url)
     if match:
         user_id = match.group(1)
         return CreatorUrlInfo(user_id=user_id)
 
-    raise ValueError(f"无法从URL中解析出创作者ID: {url}")
+    raise ValueError(f"Unable to parse creator ID from URL: {url}")
 
 
 if __name__ == '__main__':
-    # 测试视频URL解析
-    print("=== 视频URL解析测试 ===")
+    # Test video URL parsing
+    print("=== Video URL Parsing Test ===")
     test_video_urls = [
         "https://www.kuaishou.com/short-video/3x3zxz4mjrsc8ke?authorId=3x84qugg4ch9zhs&streamSource=search&area=searchxxnull&searchKey=python",
         "3xf8enb8dbj6uig",
@@ -87,13 +87,13 @@ if __name__ == '__main__':
         try:
             result = parse_video_info_from_url(url)
             print(f"✓ URL: {url[:80]}...")
-            print(f"  结果: {result}\n")
+            print(f"  Result: {result}\n")
         except Exception as e:
             print(f"✗ URL: {url}")
-            print(f"  错误: {e}\n")
+            print(f"  Error: {e}\n")
 
-    # 测试创作者URL解析
-    print("=== 创作者URL解析测试 ===")
+    # Test creator URL parsing
+    print("=== Creator URL Parsing Test ===")
     test_creator_urls = [
         "https://www.kuaishou.com/profile/3x84qugg4ch9zhs",
         "3x4sm73aye7jq7i",
@@ -102,7 +102,7 @@ if __name__ == '__main__':
         try:
             result = parse_creator_info_from_url(url)
             print(f"✓ URL: {url[:80]}...")
-            print(f"  结果: {result}\n")
+            print(f"  Result: {result}\n")
         except Exception as e:
             print(f"✗ URL: {url}")
-            print(f"  错误: {e}\n")
+            print(f"  Error: {e}\n")