优化代理获取和登录逻辑

- 每个账号独立获取代理，不再共用一个代理IP
- 代理预检失败只标记该账号失败，不终止整个批次
- 代理验证改为并发：verify_proxies_concurrent 多IP同时验证
- resolve_working_proxy 多IP并发验证，找到可用即返回
- parse_proxy_response 改为返回列表，支持多行/逗号分隔
- 邮箱验证码匹配收件人地址，防止多账号并发取错验证码
- 修正 mail.bdhg.xyz 旧数据端口和SSL配置
- bdhg.xyz 默认配置改为 143端口非SSL

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

core/douyu/email_verifier.py

@@ -158,9 +158,10 @@ class EmailVerifier:
 
                 subject = self._decode_subject(msg.get('Subject', ''))
                 from_addr = msg.get('From', '')
+                to_addr = msg.get('To', '') or msg.get('Delivered-To', '') or ''
                 body = self._get_email_body(msg)
 
-                if not self._is_douyu_email(subject, from_addr, body):
+                if not self._is_douyu_email(subject, from_addr, body, to_addr=to_addr):
                     continue
 
                 code = self._extract_verification_code(body)
@@ -257,8 +258,20 @@ class EmailVerifier:
         except (TypeError, ValueError):
             return None
 
-    def _is_douyu_email(self, subject: str, from_addr: str, body: str = "") -> bool:
-        """判断是否是斗鱼的邮件"""
+    def _is_douyu_email(self, subject: str, from_addr: str, body: str = "", to_addr: str = "") -> bool:
+        """判断是否是发给当前账号的斗鱼验证码邮件"""
+        # 先检查收件人：多个账号共用同一个IMAP时，必须匹配收件人地址
+        if to_addr and self.username:
+            # to_addr 可能是 "name <email>" 格式，提取邮箱
+            to_email = re.search(r'[\w.+-]+@[\w.-]+', to_addr)
+            if to_email:
+                to_lower = to_email.group(0).lower()
+                my_lower = self.username.lower()
+                # 精确匹配，或者 catch-all 前缀匹配
+                if to_lower != my_lower and not my_lower.endswith('@' + to_lower.split('@')[-1]):
+                    logger.debug(f"跳过非当前账号邮件: 收件人={to_lower}, 当前={my_lower}")
+                    return False
+
         douyu_keywords = ['斗鱼', 'douyu', 'douyutv']
         verify_keywords = ['验证码', '安全验证', '登录验证', '动态码', '校验码']
         combined = f"{subject}\n{from_addr}\n{body[:500]}".lower()
@@ -354,4 +367,15 @@ def get_email_config_for_account(email_address: str) -> dict:
     }
 
     domain = email_address.split('@')[-1].lower()
-    return configs.get(domain, {'server': '111.229.206.54', 'port': 143, 'ssl': False})
+    configs = {
+        'qq.com': {'server': 'imap.qq.com', 'port': 993, 'ssl': True},
+        '163.com': {'server': 'imap.163.com', 'port': 993, 'ssl': True},
+        '126.com': {'server': 'imap.126.com', 'port': 993, 'ssl': True},
+        'gmail.com': {'server': 'imap.gmail.com', 'port': 993, 'ssl': True},
+        'outlook.com': {'server': 'outlook.office365.com', 'port': 993, 'ssl': True},
+        'hotmail.com': {'server': 'outlook.office365.com', 'port': 993, 'ssl': True},
+        'bdhg.xyz': {'server': 'mail.bdhg.xyz', 'port': 143, 'ssl': False},
+    }
+
+    domain = email_address.split('@')[-1].lower()
+    return configs.get(domain, {'server': domain, 'port': 143, 'ssl': False})