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>

proxy/providers/wandou_http_proxy.py

@@ -20,7 +20,7 @@
 # -*- coding: utf-8 -*-
 # @Author  : relakkes@gmail.com
 # @Time    : 2025/7/31
-# @Desc    : 豌豆HTTP 代理IP实现
+# @Desc    : WanDou HTTP proxy IP implementation
 import os
 from typing import Dict, List
 from urllib.parse import urlencode
@@ -36,9 +36,9 @@ class WanDouHttpProxy(ProxyProvider):
 
     def __init__(self, app_key: str, num: int = 100):
         """
-        豌豆HTTP 代理IP实现
-        :param app_key: 开放的app_key,可以通过用户中心获取
-        :param num: 单次提取IP数量,最大100
+        WanDou HTTP proxy IP implementation
+        :param app_key: Open app_key, can be obtained through user center
+        :param num: Number of IPs extracted at once, maximum 100
         """
         self.proxy_brand_name = "WANDOUHTTP"
         self.api_path = "https://api.wandouapp.com/"
@@ -54,16 +54,16 @@ class WanDouHttpProxy(ProxyProvider):
         :return:
         """
 
-        # 优先从缓存中拿 IP
+        # Prioritize getting IP from cache
         ip_cache_list = self.ip_cache.load_all_ip(
             proxy_brand_name=self.proxy_brand_name
         )
         if len(ip_cache_list) >= num:
             return ip_cache_list[:num]
 
-        # 如果缓存中的数量不够，从IP代理商获取补上，再存入缓存中
+        # If the quantity in cache is insufficient, get from IP provider to supplement, then store in cache
         need_get_count = num - len(ip_cache_list)
-        self.params.update({"num": min(need_get_count, 100)})  # 最大100
+        self.params.update({"num": min(need_get_count, 100)})  # Maximum 100
         ip_infos = []
         async with httpx.AsyncClient() as client:
             url = self.api_path + "?" + urlencode(self.params)
@@ -82,7 +82,7 @@ class WanDouHttpProxy(ProxyProvider):
                     ip_info_model = IpInfoModel(
                         ip=ip_item.get("ip"),
                         port=ip_item.get("port"),
-                        user="",  # 豌豆HTTP不需要用户名密码认证
+                        user="",  # WanDou HTTP does not require username password authentication
                         password="",
                         expired_time_ts=utils.get_unix_time_from_time_str(
                             ip_item.get("expire_time")
@@ -96,27 +96,27 @@ class WanDouHttpProxy(ProxyProvider):
                     )
             else:
                 error_msg = res_dict.get("msg", "unknown error")
-                # 处理具体错误码
+                # Handle specific error codes
                 error_code = res_dict.get("code")
                 if error_code == 10001:
-                    error_msg = "通用错误，具体错误信息查看msg内容"
+                    error_msg = "General error, check msg content for specific error information"
                 elif error_code == 10048:
-                    error_msg = "没有可用套餐"
+                    error_msg = "No available package"
                 raise IpGetError(f"{error_msg} (code: {error_code})")
         return ip_cache_list + ip_infos
 
 
 def new_wandou_http_proxy() -> WanDouHttpProxy:
     """
-    构造豌豆HTTP实例
-    支持两种环境变量命名格式：
-    1. 大写格式：WANDOU_APP_KEY
-    2. 小写格式：wandou_app_key
-    优先使用大写格式，如果不存在则使用小写格式
+    Construct WanDou HTTP instance
+    Supports two environment variable naming formats:
+    1. Uppercase format: WANDOU_APP_KEY
+    2. Lowercase format: wandou_app_key
+    Prioritize uppercase format, use lowercase format if not exists
     Returns:
 
     """
-    # 支持大小写两种环境变量格式，优先使用大写
-    app_key = os.getenv("WANDOU_APP_KEY") or os.getenv("wandou_app_key", "你的豌豆HTTP app_key")
+    # Support both uppercase and lowercase environment variable formats, prioritize uppercase
+    app_key = os.getenv("WANDOU_APP_KEY") or os.getenv("wandou_app_key", "your_wandou_http_app_key")
 
     return WanDouHttpProxy(app_key=app_key)