fix: update email_client and smtp_client for new config structure - email_client: use account.imap.server/port/ssl/starttls instead of flat fields - smtp_client: use s.ssl/starttls instead of s.use_ssl/use_starttls - tg_bot: fix _do_send_reply to use find_user_by_chat_id for email_accounts

.gitignore

@@ -1,4 +1,5 @@
 .venv/
 __pycache__/
 *.pyc
-config.yaml
+config.json
+data/

MEMORY.md

@@ -0,0 +1,6 @@
+# AI Mail Bot - 记忆
+
+## 固定规则
+
+- **Telegram parse_mode 永远为 MarkdownV2**，不传 None。需要发纯文本时，用 Markdown 转义包装，而不是去掉 parse_mode。
+- **所有代码改动必须完整测试**，除非用户明确说不需要测试。没有测试的代码不算完成。

config.example.json

@@ -0,0 +1,32 @@
+{
+  "bot_token": "your_bot_token_here",
+  "polling_interval": 30,
+  "users": [
+    {
+      "chat_id": "your_telegram_chat_id",
+      "ai": {
+        "api_key": "your_deepseek_api_key",
+        "model": "deepseek-v4-flash",
+        "base_url": "https://api.deepseek.com"
+      },
+      "email_accounts": [
+        {
+          "username": "you@126.com",
+          "password": "your_imap_password",
+          "imap": {
+            "server": "imap.126.com",
+            "port": 993,
+            "ssl": true,
+            "starttls": false
+          },
+          "smtp": {
+            "server": "smtp.126.com",
+            "port": 465,
+            "ssl": true,
+            "starttls": false
+          }
+        }
+      ]
+    }
+  ]
+}

config.yaml.example

@@ -1,32 +0,0 @@
-email_accounts:
-  - imap_server: "imap.gmail.com"
-    imap_port: 993
-    username: "your_email@gmail.com"
-    password: "your_app_password"
-    use_ssl: true
-    smtp:
-      server: "smtp.gmail.com"
-      port: 465
-      use_ssl: true
-
-  - imap_server: "imap.126.com"
-    imap_port: 993
-    username: "your_email@126.com"
-    password: "your_auth_code"
-    use_ssl: true
-    smtp:
-      server: "smtp.126.com"
-      port: 465
-      use_ssl: true
-
-ai:
-  api_key: "sk-your_deepseek_api_key"
-  model: "deepseek-chat"
-  base_url: "https://api.deepseek.com"
-
-telegram:
-  bot_token: "1234567890:ABCdefGHIjklmNOPqrstUVwxyz"
-  chat_id: "123456789"
-
-polling:
-  interval_seconds: 60

main.py

@@ -6,11 +6,12 @@ import sys
 import threading
 import time
 from concurrent.futures import ThreadPoolExecutor
-from src.config import load_config
-from src.summarizer import poll_accounts, ai_process, tg_send_and_mark
-from src.tg_bot import poll_telegram
+from src.config import load_config, Config, UserConfig
+from src.summarizer import poll_accounts, ai_process, tg_send_and_mark, _mail_label
+from src.tg_bot import poll_telegram, send_thinking
+from src.database import init_db, is_uid_processed, mark_fetched, mark_processing, mark_sent, mark_failed
 
-# Thread-safe logging: all log records go through a single QueueListener thread
+# Thread-safe logging
 _log_queue = queue_module.Queue(-1)
 _queue_handler = logging.handlers.QueueHandler(_log_queue)
 _console_handler = logging.StreamHandler()
@@ -28,13 +29,11 @@ _log_listener.start()
 logger = logging.getLogger("main")
 
 _running = True
-_pending_lock = threading.Lock()
-_pending_uids: set[bytes] = set()
-_processing_uids: set[bytes] = set()  # 正在处理（含等待TG发送）的邮件UID
+_shutdown_event = threading.Event()
 
-# Queue 1: raw emails → AI processor
+# Queue 1: raw emails → AI processor (user, acct_idx, mail, tg_msg_id)
 _email_queue: queue_module.Queue = queue_module.Queue()
-# Queue 2: AI summaries → TG sender
+# Queue 2: AI summaries → TG sender (user, info_dict)
 _tg_queue: queue_module.Queue = queue_module.Queue()
 
 
@@ -42,31 +41,39 @@ def _signal_handler(signum, frame):
     global _running
     logger.info("收到退出信号，正在停止...")
     _running = False
+    _shutdown_event.set()
 
 
-def _email_poller(cfg):
+def _email_poller(cfg: Config):
     logger.info("邮件轮询线程已启动")
     while _running:
         try:
-            for acct_idx, mail in poll_accounts(cfg, skip_uids=_processing_uids):
+            for user in cfg.users:
                 if not _running:
                     return
-                with _pending_lock:
-                    if mail.uid not in _processing_uids:
-                        _processing_uids.add(mail.uid)
-                        _pending_uids.add(mail.uid)
-                        _email_queue.put((acct_idx, mail))
+                for acct_idx, mail in poll_accounts(user):
+                    if not _running:
+                        return
+                    uid_str = mail.uid.decode("utf-8", errors="replace") if isinstance(mail.uid, bytes) else str(mail.uid)
+                    if not is_uid_processed(uid_str):
+                        mark_fetched(uid_str, mail.account_email, mail.folder,
+                                     mail.subject, mail.sender)
+                        try:
+                            tg_msg_id = send_thinking(cfg.bot_token, user.chat_id,
+                                f"📥 *获取邮件中…*\n{_mail_label(mail)}")
+                            logger.info("  [%s] 获取邮件中消息已发送: msg_id=%d", user.chat_id, tg_msg_id)
+                        except Exception as e:
+                            logger.error("  [%s] 获取邮件中消息发送失败: %s", user.chat_id, e)
+                            tg_msg_id = 0
+                        _email_queue.put((user, acct_idx, mail, tg_msg_id))
         except Exception as e:
             logger.error(f"邮件轮询线程异常: {e}", exc_info=True)
             time.sleep(5)
         if _running:
-            for _ in range(cfg.polling.interval_seconds):
-                if not _running:
-                    return
-                time.sleep(1)
+            _shutdown_event.wait(cfg.polling_interval)
 
 
-def _ai_processor(cfg):
+def _ai_processor(cfg: Config):
     logger.info("AI 处理线程已启动 (并行 workers=10)")
     max_workers = 10
     with ThreadPoolExecutor(max_workers=max_workers) as executor:
@@ -74,57 +81,60 @@ def _ai_processor(cfg):
         while _running:
             while len(pending_futures) < max_workers:
                 try:
-                    acct_idx, mail = _email_queue.get_nowait()
+                    user, acct_idx, mail, tg_msg_id = _email_queue.get_nowait()
                 except queue_module.Empty:
                     break
-                future = executor.submit(ai_process, cfg, acct_idx, mail)
-                pending_futures[future] = (acct_idx, mail)
+                uid_str = mail.uid.decode("utf-8", errors="replace") if isinstance(mail.uid, bytes) else str(mail.uid)
+                mark_processing(uid_str)
+                future = executor.submit(ai_process, cfg, user, acct_idx, mail, tg_msg_id)
+                pending_futures[future] = (user, acct_idx, mail)
 
             completed = [f for f in pending_futures if f.done()]
             for future in completed:
-                acct_idx, mail = pending_futures.pop(future)
+                user, acct_idx, mail = pending_futures.pop(future)
                 try:
                     info = future.result()
                     if info:
-                        _tg_queue.put(info)
+                        _tg_queue.put((user, info))
                 except Exception as e:
                     logger.error(f"AI 处理邮件失败: {e}", exc_info=True)
-                    # AI 失败也要移除 pending，否则永远卡住
-                    with _pending_lock:
-                        _pending_uids.discard(mail.uid)
-                        _processing_uids.discard(mail.uid)
+                    uid_str = mail.uid.decode("utf-8", errors="replace") if isinstance(mail.uid, bytes) else str(mail.uid)
+                    mark_failed(uid_str)
 
             time.sleep(0.1 if pending_futures else 0.5)
 
 
-def _tg_worker(cfg):
-    logger.info("TG 线程已启动")
+def _tg_poller(cfg: Config):
+    logger.info("TG 轮询线程已启动（按钮回调专用）")
     last_update_id = 0
     while _running:
         try:
-            last_update_id = poll_telegram(cfg.telegram, cfg, last_update_id)
+            last_update_id = poll_telegram(cfg.bot_token, cfg, last_update_id)
         except Exception as e:
             logger.error(f"TG 轮询错误: {e}", exc_info=True)
-
-        while _running:
-            try:
-                info = _tg_queue.get_nowait()
-                tg_send_and_mark(cfg, info)
-                # 发送并标记已读成功后移除 pending（_processing_uids 保留直到重启）
-                with _pending_lock:
-                    _pending_uids.discard(info["uid"])
-            except queue_module.Empty:
-                break
-            except Exception as e:
-                logger.error(f"TG 发送失败: {e}", exc_info=True)
-                try:
-                    with _pending_lock:
-                        _pending_uids.discard(info["uid"])
-                except Exception:
-                    pass
-
         if _running:
-            time.sleep(1)
+            _shutdown_event.wait(0.05)
+
+
+def _tg_sender(cfg: Config):
+    logger.info("TG 发送线程已启动（邮件摘要专用）")
+    while _running:
+        try:
+            user, info = _tg_queue.get_nowait()
+            tg_send_and_mark(cfg, user, info)
+            uid_str = info["uid"].decode("utf-8", errors="replace") if isinstance(info["uid"], bytes) else str(info["uid"])
+            mark_sent(uid_str)
+        except queue_module.Empty:
+            pass
+        except Exception as e:
+            logger.error(f"TG 发送失败: {e}", exc_info=True)
+            try:
+                uid_str = info["uid"].decode("utf-8", errors="replace") if isinstance(info["uid"], bytes) else str(info["uid"])
+                mark_failed(uid_str)
+            except Exception:
+                pass
+        if _running:
+            _shutdown_event.wait(0.2)
 
 
 def main():
@@ -132,14 +142,19 @@ def main():
     signal.signal(signal.SIGINT, _signal_handler)
     signal.signal(signal.SIGTERM, _signal_handler)
 
-    cfg_path = sys.argv[1] if len(sys.argv) > 1 else "config.yaml"
+    cfg_path = sys.argv[1] if len(sys.argv) > 1 else "config.json"
     cfg = load_config(cfg_path)
-    logger.info(f"AI邮件摘要机器人已启动，轮询间隔: {cfg.polling.interval_seconds}s")
+    init_db()
+
+    user_count = len(cfg.users)
+    acct_count = sum(len(u.email_accounts) for u in cfg.users)
+    logger.info(f"AI邮件摘要机器人已启动: {user_count} 用户, {acct_count} 邮箱, 轮询间隔: {cfg.polling_interval}s")
 
     threads = [
         threading.Thread(target=_email_poller, args=(cfg,), daemon=True),
         threading.Thread(target=_ai_processor, args=(cfg,), daemon=True),
-        threading.Thread(target=_tg_worker, args=(cfg,), daemon=True),
+        threading.Thread(target=_tg_poller, args=(cfg,), daemon=True),
+        threading.Thread(target=_tg_sender, args=(cfg,), daemon=True),
     ]
 
     for t in threads:
@@ -151,11 +166,12 @@ def main():
         while _running:
             tick += 1
             if tick % 30 == 0:
-                logger.info("队列状态: email_queue=%d tg_queue=%d pending_uids=%d",
-                            _email_queue.qsize(), _tg_queue.qsize(), len(_pending_uids))
-            time.sleep(1)
+                logger.info("队列状态: email_queue=%d tg_queue=%d",
+                            _email_queue.qsize(), _tg_queue.qsize())
+            _shutdown_event.wait(1)
     except KeyboardInterrupt:
         _running = False
+        _shutdown_event.set()
 
     for t in threads:
         t.join(timeout=5)

src/ai_client.py

@@ -8,7 +8,7 @@ from src.retry import retry
 
 logger = logging.getLogger(__name__)
 
-SYSTEM_PROMPT = """你是一个邮件摘要助手。请分析邮件内容并以 JSON 格式返回结构化摘要。所有输出（subject、summary 等）必须使用简体中文，但 reply_suggestions（智能回复）请使用与邮件相同的语言，以便用户直接回复。
+SYSTEM_PROMPT = """你是一个邮件摘要助手。请分析邮件内容并以 JSON 格式返回结构化摘要。所有输出（subject、summary 等）必须使用简体中文。
 
 返回格式必须严格遵循以下 JSON schema：
 {
@@ -16,16 +16,12 @@ SYSTEM_PROMPT = """你是一个邮件摘要助手。请分析邮件内容并以
   "recipient": "收件邮箱地址",
   "sender": "发件人",
   "category": "normal/promotion/notification",
+  "plain_text": "邮件全文的纯文本版本，去除HTML标签，保留所有文字内容，保持原始段落结构，不删减不修改任何内容",
   "summary": "50字以内的核心摘要",
   "verification_code": "",
   "app_name": "",
   "links": [{"text": "按钮文字", "url": "https://..."}],
-  "can_reply": true/false,
-  "reply_suggestions": [
-    {"text": "回复内容", "is_simple": true/false},
-    {"text": "回复内容", "is_simple": true/false},
-    {"text": "回复内容", "is_simple": true/false}
-  ]
+  "can_reply": true/false
 }
 
 其中：
@@ -34,12 +30,11 @@ SYSTEM_PROMPT = """你是一个邮件摘要助手。请分析邮件内容并以
 - verification_code: 仅当 category 为 "notification" 且邮件包含验证码时填写，提取完整的验证码字符串（纯数字、字母数字混合等均可，如「123456」「abc-789」「701383」）。非验证码邮件留空字符串
 - app_name: 仅当 category 为 "notification" 且邮件包含验证码时填写，填写发送验证码的应用/平台名称（如「GitHub」「微信」「Kraken」）。非验证码邮件留空字符串
 - links: 仅提取以下两类链接：1）邮件明确要求用户点击才能完成某操作的链接（如确认邮箱、重置密码、查看账单、审批请求、查看通知详情等）；2）退订/取消订阅链接。不要提取推广性质的链接（如下载App、注册领优惠、查看更多商品等营销链接）、追踪像素、邮件签名中的社交链接。每条包含简短描述文字和完整 URL。最多 3 条。没有符合条件的链接时为空数组
+- 退订链接提取规则：推广邮件必须提取退订链接。退订链接通常在邮件最底部，包含以下关键词之一：unsubscribe、退订、取消订阅、opt out、manage preferences、email preferences。即使链接被包裹在 HTML 标签中，也要提取 href 属性里的完整 URL。如果邮件底部同时有多个退订相关链接，只提取最主要的那个
+- plain_text: 将邮件全文转换为可读的纯文本版本。去除所有HTML标签、CSS样式、脚本代码，保留完整的文字内容和原始段落结构。不删减、不修改、不总结任何内容，完整保留原文所有信息
 - summary 要简洁，把需要知道的信息浓缩成一句话，不需要分条列出
-- 当 category 为 "promotion" 时，summary 直接写成一句话：「[发送方名称] 在推广 [推广的产品/服务/活动]」，例如「腾讯云在推广双十一云服务器折扣」。此时 can_reply 为 false，reply_suggestions 为空数组
-- can_reply 为 false 表示无需回复或不适合建议回复（此时忽略 reply_suggestions）
-- is_simple 为 true 表示纯确认性回复（如"好的""收到"），用户选择后可直发
-- is_simple 为 false 表示涉及实质内容，需要用户确认再发送
-- 每条回复控制在 50 字以内
+- 当 category 为 "promotion" 时，summary 直接写成一句话：「[发送方名称] 在推广 [推广的产品/服务/活动]」，例如「腾讯云在推广双十一云服务器折扣」。此时 can_reply 为 false
+- can_reply 为 false 表示无需回复或不适合建议回复
 只返回 JSON，不要包含任何其他文字。"""
 
 
@@ -83,7 +78,12 @@ def expand_promo_detail(ai_cfg: AIConfig, sender: str, subject: str, body: str)
     return result.get("details", [])
 
 
-MORE_REPLIES_PROMPT = """你是一个邮件回复助手。根据以下邮件内容生成3个完全不同的建议回复。
+MORE_REPLIES_PROMPT_SHORT = """你是一个邮件回复助手。根据以下邮件内容生成3个完全不同的简洁回复。
+
+规则：
+- 简洁模式：直接说要点，不需要称呼、落款、邮件格式。像微信/短信一样简短。
+- 必须使用与邮件相同的语言回复（英文邮件用英文，中文邮件用中文）。
+- 不要添加任何占位符如 [Your Name]。
 
 以下是一些已经生成过的回复，请生成全新的回复，不要与已有回复重复。
 
@@ -98,22 +98,44 @@ MORE_REPLIES_PROMPT = """你是一个邮件回复助手。根据以下邮件内
 每条回复控制在 50 字以内。
 只返回 JSON，不要包含任何其他文字。"""
 
+MORE_REPLIES_PROMPT_FULL = """你是一个邮件回复助手。根据以下邮件内容生成3个不同的正式邮件回复。
+
+规则：
+- 完整模式：生成完整的邮件格式，包括称呼（如 Dear xxx,）和正文，结尾只写问候语逗号，不写落款，用户会自己编辑添加。
+- 必须使用与邮件相同的语言回复（英文邮件用英文，中文邮件用中文）。
+- 语气正式专业，适合商务邮件。
+
+以下是一些已经生成过的回复，请生成全新的回复，不要与已有回复重复。
+
+返回 JSON:
+{
+  "suggestions": [
+    {"text": "回复内容"},
+    {"text": "回复内容"},
+    {"text": "回复内容"}
+  ]
+}
+每条回复控制在 300 字以内。
+只返回 JSON，不要包含任何其他文字。"""
+
 
 @retry()
 def generate_more_replies(ai_cfg: AIConfig, sender: str, subject: str, body: str,
-                          previous_suggestions: list[dict], user_hint: str = "") -> list[dict]:
-    logger.info("AI 换批请求: sender=%s subject=%s user_hint=%s prev=%d 条",
-                sender, subject, user_hint or "(无)", len(previous_suggestions))
+                          previous_suggestions: list[dict], user_hint: str = "",
+                          style: str = "short") -> list[dict]:
+    logger.info("AI 换批请求: sender=%s subject=%s user_hint=%s prev=%d 条 style=%s",
+                sender, subject, user_hint or "(无)", len(previous_suggestions), style)
     content = f"发件人: {sender}\n主题: {subject}\n正文:\n{body}\n\n已生成过的回复:\n"
     for i, s in enumerate(previous_suggestions, 1):
         content += f"{i}. {s['text']}\n"
     if user_hint:
         content += f"\n用户要求: {user_hint}"
 
+    prompt = MORE_REPLIES_PROMPT_FULL if style == "full" else MORE_REPLIES_PROMPT_SHORT
     payload = {
         "model": ai_cfg.model,
         "messages": [
-            {"role": "system", "content": MORE_REPLIES_PROMPT},
+            {"role": "system", "content": prompt},
             {"role": "user", "content": content},
         ],
         "response_format": {"type": "json_object"},

src/config.py

@@ -1,25 +1,30 @@
-from dataclasses import dataclass
+from dataclasses import dataclass, field
 from typing import List, Optional
-import yaml
+import json
+
+
+@dataclass
+class ImapConfig:
+    server: str
+    port: int = 993
+    ssl: bool = True
+    starttls: bool = False
 
 
 @dataclass
 class SmtpConfig:
     server: str
-    port: int
-    use_ssl: bool = True
-    use_starttls: bool = False
+    port: int = 465
+    ssl: bool = True
+    starttls: bool = False
 
 
 @dataclass
 class EmailAccount:
-    imap_server: str
-    imap_port: int
     username: str
     password: str
-    use_ssl: bool = True
-    use_starttls: bool = False
-    smtp: Optional[SmtpConfig] = None
+    imap: ImapConfig
+    smtp: SmtpConfig
 
 
 @dataclass
@@ -30,40 +35,50 @@ class AIConfig:
 
 
 @dataclass
-class TelegramConfig:
-    bot_token: str
+class UserConfig:
     chat_id: str
-
-
-@dataclass
-class PollingConfig:
-    interval_seconds: int
+    ai: AIConfig
+    email_accounts: List[EmailAccount] = field(default_factory=list)
 
 
 @dataclass
 class Config:
-    email_accounts: List[EmailAccount]
-    ai: AIConfig
-    telegram: TelegramConfig
-    polling: PollingConfig
+    bot_token: str
+    polling_interval: int
+    users: List[UserConfig] = field(default_factory=list)
 
 
 def load_config(path: str) -> Config:
     with open(path, "r", encoding="utf-8") as f:
-        raw = yaml.safe_load(f)
+        raw = json.load(f)
 
-    accounts = []
-    for a in raw["email_accounts"]:
-        if "smtp" in a and a["smtp"] is not None:
-            a["smtp"] = SmtpConfig(**a["smtp"])
-        accounts.append(EmailAccount(**a))
-    ai = AIConfig(**raw["ai"])
-    tg = TelegramConfig(**raw["telegram"])
-    polling = PollingConfig(**raw["polling"])
+    users = []
+    for u in raw.get("users", []):
+        email_accounts = []
+        for a in u.get("email_accounts", []):
+            email_accounts.append(EmailAccount(
+                username=a["username"],
+                password=a["password"],
+                imap=ImapConfig(**a.get("imap", {})),
+                smtp=SmtpConfig(**a.get("smtp", {})),
+            ))
+        users.append(UserConfig(
+            chat_id=str(u["chat_id"]),
+            ai=AIConfig(**u["ai"]),
+            email_accounts=email_accounts,
+        ))
 
     return Config(
-        email_accounts=accounts,
-        ai=ai,
-        telegram=tg,
-        polling=polling,
+        bot_token=raw["bot_token"],
+        polling_interval=raw.get("polling_interval", 30),
+        users=users,
     )
+
+
+def find_user_by_chat_id(cfg: Config, chat_id: int | str) -> Optional[UserConfig]:
+    """根据 chat_id 查找用户"""
+    cid = str(chat_id)
+    for user in cfg.users:
+        if user.chat_id == cid:
+            return user
+    return None

src/database.py

@@ -0,0 +1,177 @@
+import json
+import logging
+import sqlite3
+import threading
+from contextlib import contextmanager
+from datetime import datetime
+from pathlib import Path
+
+logger = logging.getLogger(__name__)
+
+DB_PATH = Path(__file__).parent.parent / "data" / "mail_bot.db"
+_local = threading.local()
+
+
+def init_db():
+    """初始化数据库表，启动时清空邮件处理记录"""
+    DB_PATH.parent.mkdir(parents=True, exist_ok=True)
+    conn = _get_conn()
+    conn.executescript("""
+        CREATE TABLE IF NOT EXISTS processed_emails (
+            uid TEXT PRIMARY KEY,
+            account TEXT NOT NULL,
+            folder TEXT NOT NULL DEFAULT 'INBOX',
+            subject TEXT,
+            sender TEXT,
+            status TEXT NOT NULL DEFAULT 'fetched',
+            created_at TEXT NOT NULL,
+            sent_at TEXT
+        );
+
+        CREATE TABLE IF NOT EXISTS email_contexts (
+            msg_id INTEGER PRIMARY KEY,
+            data TEXT NOT NULL,
+            created_at TEXT NOT NULL
+        );
+
+        CREATE TABLE IF NOT EXISTS conversations (
+            chat_id INTEGER PRIMARY KEY,
+            data TEXT NOT NULL,
+            updated_at TEXT NOT NULL
+        );
+
+        CREATE INDEX IF NOT EXISTS idx_processed_status ON processed_emails(status);
+        CREATE INDEX IF NOT EXISTS idx_processed_account ON processed_emails(account);
+    """)
+    conn.execute("DELETE FROM processed_emails")
+    conn.execute("DELETE FROM email_contexts")
+    conn.execute("DELETE FROM conversations")
+    conn.commit()
+    logger.info("数据库初始化完成: %s", DB_PATH)
+
+
+def _get_conn() -> sqlite3.Connection:
+    if not hasattr(_local, "conn") or _local.conn is None:
+        DB_PATH.parent.mkdir(parents=True, exist_ok=True)
+        _local.conn = sqlite3.connect(str(DB_PATH), timeout=10)
+        _local.conn.execute("PRAGMA journal_mode=WAL")
+        _local.conn.execute("PRAGMA busy_timeout=5000")
+        _local.conn.row_factory = sqlite3.Row
+    return _local.conn
+
+
+@contextmanager
+def get_db():
+    conn = _get_conn()
+    try:
+        yield conn
+        conn.commit()
+    except Exception:
+        conn.rollback()
+        raise
+
+
+# ── processed_emails ────────────────────────────────────
+
+def is_uid_processed(uid: str) -> bool:
+    with get_db() as conn:
+        row = conn.execute(
+            "SELECT 1 FROM processed_emails WHERE uid=? AND status != 'failed'",
+            (uid,)
+        ).fetchone()
+        return row is not None
+
+
+def is_uids_processed(uids: list[str]) -> set[str]:
+    """批量检查，返回已处理的 uid 集合"""
+    if not uids:
+        return set()
+    with get_db() as conn:
+        placeholders = ",".join("?" * len(uids))
+        rows = conn.execute(
+            f"SELECT uid FROM processed_emails WHERE uid IN ({placeholders}) AND status != 'failed'",
+            uids
+        ).fetchall()
+        return {row["uid"] for row in rows}
+
+
+def mark_fetched(uid: str, account: str, folder: str = "INBOX",
+                 subject: str = "", sender: str = ""):
+    with get_db() as conn:
+        conn.execute(
+            """INSERT OR IGNORE INTO processed_emails
+               (uid, account, folder, subject, sender, status, created_at)
+               VALUES (?, ?, ?, ?, ?, 'fetched', ?)""",
+            (uid, account, folder, subject, sender, datetime.now().isoformat())
+        )
+
+
+def mark_processing(uid: str):
+    with get_db() as conn:
+        conn.execute(
+            "UPDATE processed_emails SET status='processing' WHERE uid=?",
+            (uid,)
+        )
+
+
+def mark_sent(uid: str):
+    with get_db() as conn:
+        conn.execute(
+            "UPDATE processed_emails SET status='sent', sent_at=? WHERE uid=?",
+            (datetime.now().isoformat(), uid)
+        )
+
+
+def mark_failed(uid: str):
+    with get_db() as conn:
+        conn.execute(
+            "UPDATE processed_emails SET status='failed' WHERE uid=?",
+            (uid,)
+        )
+
+
+# ── email_contexts ──────────────────────────────────────
+
+def save_email_context(msg_id: int, data: dict):
+    with get_db() as conn:
+        conn.execute(
+            """INSERT OR REPLACE INTO email_contexts (msg_id, data, created_at)
+               VALUES (?, ?, ?)""",
+            (msg_id, json.dumps(data, ensure_ascii=False), datetime.now().isoformat())
+        )
+
+
+def load_email_context(msg_id: int) -> dict | None:
+    with get_db() as conn:
+        row = conn.execute(
+            "SELECT data FROM email_contexts WHERE msg_id=?", (msg_id,)
+        ).fetchone()
+        if row:
+            return json.loads(row["data"])
+        return None
+
+
+# ── conversations ───────────────────────────────────────
+
+def save_conversation(chat_id: int, data: dict):
+    with get_db() as conn:
+        conn.execute(
+            """INSERT OR REPLACE INTO conversations (chat_id, data, updated_at)
+               VALUES (?, ?, ?)""",
+            (chat_id, json.dumps(data, ensure_ascii=False), datetime.now().isoformat())
+        )
+
+
+def load_conversation(chat_id: int) -> dict | None:
+    with get_db() as conn:
+        row = conn.execute(
+            "SELECT data FROM conversations WHERE chat_id=?", (chat_id,)
+        ).fetchone()
+        if row:
+            return json.loads(row["data"])
+        return None
+
+
+def delete_conversation(chat_id: int):
+    with get_db() as conn:
+        conn.execute("DELETE FROM conversations WHERE chat_id=?", (chat_id,))

src/email_client.py

@@ -91,12 +91,13 @@ def _select_mailbox(conn, mailbox: str = "INBOX"):
 
 
 def _login_and_prepare(account: EmailAccount, timeout: int = 30, select_inbox: bool = True):
-    logger.info("连接 %s:%d (超时%ds)", account.imap_server, account.imap_port, timeout)
-    if account.use_ssl:
-        conn = imaplib.IMAP4_SSL(account.imap_server, account.imap_port, timeout=timeout)
+    imap = account.imap
+    logger.info("连接 %s:%d (超时%ds)", imap.server, imap.port, timeout)
+    if imap.ssl:
+        conn = imaplib.IMAP4_SSL(imap.server, imap.port, timeout=timeout)
     else:
-        conn = imaplib.IMAP4(account.imap_server, account.imap_port, timeout=timeout)
-        if account.use_starttls:
+        conn = imaplib.IMAP4(imap.server, imap.port, timeout=timeout)
+        if imap.starttls:
             conn.starttls()
     conn.login(account.username, account.password)
     logger.info("登录成功: %s", account.username)
@@ -113,9 +114,8 @@ def fetch_unseen_emails(account: EmailAccount, skip_uids: set[bytes] | None = No
     conn = _login_and_prepare(account, select_inbox=False)
     if skip_uids is None:
         skip_uids = set()
-    logger.info("fetch_unseen_emails: %s, skip_uids大小=%d", account.username, len(skip_uids))
 
-    # 列出所有文件夹
+    # 列出所有文件夹，跳过 NoSelect 文件夹
     _, folder_data = conn.list()
     folders = []
     if folder_data:
@@ -123,6 +123,9 @@ def fetch_unseen_emails(account: EmailAccount, skip_uids: set[bytes] | None = No
             if item is None:
                 continue
             line = item.decode("utf-8", errors="replace")
+            # 跳过 \NoSelect 文件夹（父文件夹，不能直接 SELECT）
+            if "\\NoSelect" in line:
+                continue
             m = re.search(r'"([^"]*)"\s*$', line)
             if m:
                 folders.append(m.group(1))
@@ -136,7 +139,7 @@ def fetch_unseen_emails(account: EmailAccount, skip_uids: set[bytes] | None = No
         try:
             status, _ = conn.select(folder, readonly=True)
             if status != "OK":
-                logger.warning("无法选择文件夹: %s", folder)
+                logger.debug("无法选择文件夹: %s", folder)
                 continue
             _, data = conn.uid("SEARCH", None, "UNSEEN")
             uids = data[0].split() if data[0] else []
@@ -148,11 +151,7 @@ def fetch_unseen_emails(account: EmailAccount, skip_uids: set[bytes] | None = No
             skipped += len(uids) - len(new_uids)
             if not new_uids:
                 continue
-            if skipped > 0 or len(uids) > 0:
-                logger.info("  %s: %d 封未读 (%d 封跳过) skip_uids=%d",
-                            folder, len(new_uids), len(uids) - len(new_uids), len(skip_uids))
-                if skip_uids and len(skip_uids) <= 5:
-                    logger.info("    skip_uids 内容: %s", [u for u in skip_uids])
+            logger.info("  %s: %d 封未读 (%d 封跳过)", folder, len(new_uids), len(uids) - len(new_uids))
 
             for uid in new_uids:
                 try:
@@ -206,7 +205,7 @@ def mark_as_seen(account: EmailAccount, uids_with_folder: list[tuple[bytes, str]
         by_folder[folder].append(uid)
     for folder, uids in by_folder.items():
         try:
-            conn.select(folder, readonly=True)
+            conn.select(folder, readonly=False)
             for uid in uids:
                 conn.uid("STORE", uid, "+FLAGS", "\\Seen")
             logger.info("  %s: 标记 %d 封", folder, len(uids))

src/smtp_client.py

@@ -2,6 +2,9 @@ import smtplib
 import logging
 from email.mime.text import MIMEText
 from email.mime.multipart import MIMEMultipart
+from email.mime.base import MIMEBase
+from email import encoders
+from pathlib import Path
 from src.config import EmailAccount
 from src.retry import retry
 
@@ -9,30 +12,55 @@ logger = logging.getLogger(__name__)
 
 
 @retry()
-def send_reply(account: EmailAccount, to_addr: str, subject: str, body: str):
+def send_reply(account: EmailAccount, to_addr: str, subject: str, body: str,
+               attachments: list[tuple[str, str]] | None = None):
+    """发送回复邮件，支持附件。
+
+    Args:
+        attachments: [(本地文件路径, mime_type), ...] 列表
+    """
     if not account.smtp:
         raise RuntimeError(f"账号 {account.username} 未配置 SMTP")
 
     s = account.smtp
-    logger.info("SMTP 连接: %s:%d (ssl=%s)", s.server, s.port, s.use_ssl)
-    if s.use_ssl:
+    logger.info("SMTP 连接: %s:%d (ssl=%s)", s.server, s.port, s.ssl)
+    if s.ssl:
         conn = smtplib.SMTP_SSL(s.server, s.port, timeout=15)
     else:
         conn = smtplib.SMTP(s.server, s.port, timeout=15)
-        if s.use_starttls:
+        if s.starttls:
             conn.starttls()
 
     conn.login(account.username, account.password)
     logger.info("SMTP 登录成功")
 
     reply_subject = subject if subject.lower().startswith("re:") else f"Re: {subject}"
-    logger.info("SMTP 发送: to=%s subject=%s body=%d 字符", to_addr, reply_subject, len(body))
+    logger.info("SMTP 发送: to=%s subject=%s body=%d 字符 attachments=%d",
+                to_addr, reply_subject, len(body), len(attachments or []))
+
+    if attachments:
+        msg = MIMEMultipart()
+        msg.attach(MIMEText(body, "plain", "utf-8"))
+        for filepath, mime_type in attachments:
+            p = Path(filepath)
+            if not p.exists():
+                logger.warning("  附件不存在: %s", filepath)
+                continue
+            maintype, subtype = mime_type.split("/", 1)
+            with open(p, "rb") as f:
+                part = MIMEBase(maintype, subtype)
+                part.set_payload(f.read())
+            encoders.encode_base64(part)
+            part.add_header("Content-Disposition", "attachment", filename=p.name)
+            msg.attach(part)
+            logger.info("  添加附件: %s (%s, %d bytes)", p.name, mime_type, p.stat().st_size)
+    else:
+        msg = MIMEMultipart("alternative")
+        msg.attach(MIMEText(body, "plain", "utf-8"))
 
-    msg = MIMEMultipart("alternative")
     msg["From"] = account.username
     msg["To"] = to_addr
     msg["Subject"] = reply_subject
-    msg.attach(MIMEText(body, "plain", "utf-8"))
 
     conn.sendmail(account.username, [to_addr], msg.as_string())
     conn.quit()

src/summarizer.py

@@ -1,37 +1,57 @@
 import logging
+import re
+import threading
 from typing import Generator, Optional
-from src.config import Config
+from src.config import Config, UserConfig
 from src.email_client import fetch_unseen_emails, mark_as_seen, Email
 from src.ai_client import summarize_email
 from src.tg_bot import send_summary, send_thinking, edit_message, format_summary
 
 logger = logging.getLogger(__name__)
 
+_MD_SPECIAL = re.compile(r"([_*\[\]()~`>#+\-=|{}.!\\])")
 
-def poll_accounts(cfg: Config, skip_uids: set[bytes] | None = None) -> Generator[tuple[int, Email], None, None]:
-    for idx, acct in enumerate(cfg.email_accounts):
+def _escape_md(text: str) -> str:
+    return _MD_SPECIAL.sub(r"\\\1", text)
+
+
+def _mail_label(mail: Email) -> str:
+    sender_short = mail.sender.split("<")[0].strip() if "<" in mail.sender else mail.sender.split("@")[0]
+    subject_short = mail.subject[:30] + ("…" if len(mail.subject) > 30 else "")
+    return f"{_escape_md(sender_short)} · {_escape_md(subject_short)}"
+
+
+def poll_accounts(user: UserConfig, skip_uids: set[bytes] | None = None) -> Generator[tuple[int, Email], None, None]:
+    """轮询指定用户的所有邮箱"""
+    for idx, acct in enumerate(user.email_accounts):
         try:
-            logger.info(f"检查邮箱: {acct.username}")
+            logger.info("检查邮箱: %s (user=%s)", acct.username, user.chat_id)
             emails = fetch_unseen_emails(acct, skip_uids=skip_uids)
             if emails:
-                logger.info(f"  发现 {len(emails)} 封新邮件")
+                logger.info("  发现 %d 封新邮件", len(emails))
             for mail in emails:
                 yield idx, mail
         except Exception as e:
-            logger.error(f"轮询 {acct.username} 失败: {e}", exc_info=True)
+            logger.error("轮询 %s 失败: %s", acct.username, e, exc_info=True)
 
 
-def ai_process(cfg: Config, acct_idx: int, mail: Email) -> Optional[dict]:
-    logger.info(f"  正在摘要: {mail.subject}")
-    # 先发思考中消息
-    thinking_msg_id = send_thinking(cfg.telegram, cfg.telegram.chat_id)
-    logger.info(f"  思考中消息已发送: msg_id={thinking_msg_id}")
+def ai_process(cfg: Config, user: UserConfig, acct_idx: int, mail: Email, tg_msg_id: int = 0) -> Optional[dict]:
+    logger.info("  [%s] 正在摘要: %s", user.chat_id, mail.subject)
+    label = _mail_label(mail)
+    # 阶段1：显示等待处理
+    if tg_msg_id:
+        edit_message(cfg.bot_token, user.chat_id, tg_msg_id, f"⏳ *等待处理…*\n{label}")
+    else:
+        tg_msg_id = send_thinking(cfg.bot_token, user.chat_id, f"⏳ *等待处理…*\n{label}")
 
-    summary = summarize_email(cfg.ai, mail.recipient, mail.subject, mail.sender, mail.body, mail.account_email)
+    # 阶段2：AI 处理，更新为思考中
+    edit_message(cfg.bot_token, user.chat_id, tg_msg_id, f"🤖 *AI思考中…*\n{label}")
+    summary = summarize_email(user.ai, mail.recipient, mail.subject, mail.sender, mail.body, mail.account_email)
     summary["recipient"] = mail.recipient
     if "@" not in summary.get("sender", ""):
         summary["sender"] = mail.sender
     text = format_summary(summary, mail.account_email)
+    # 阶段3：编辑为最终结果
     return {
         "text": text,
         "data": summary,
@@ -43,44 +63,49 @@ def ai_process(cfg: Config, acct_idx: int, mail: Email) -> Optional[dict]:
         "account_email": mail.account_email,
         "uid": mail.uid,
         "folder": mail.folder,
-        "thinking_msg_id": thinking_msg_id,
+        "thinking_msg_id": tg_msg_id if tg_msg_id else 0,
     }
 
 
-def tg_send_and_mark(cfg: Config, info: dict):
-    acct = cfg.email_accounts[info["acct_idx"]]
+def tg_send_and_mark(cfg: Config, user: UserConfig, info: dict):
+    # 找到用户对应的邮箱账户
+    acct = user.email_accounts[info["acct_idx"]]
     thinking_msg_id = info.get("thinking_msg_id")
     if thinking_msg_id:
-        # 编辑思考中消息为实际摘要
         from src.tg_bot import _summary_keyboard
+        from src.database import save_email_context
         can_reply = info["data"].get("can_reply", True)
         is_promotion = info["data"].get("category") == "promotion"
         links = info["data"].get("links", [])
-        edit_message(cfg.telegram, cfg.telegram.chat_id, thinking_msg_id,
+        edit_message(cfg.bot_token, user.chat_id, thinking_msg_id,
                      info["text"], _summary_keyboard(can_reply, is_promotion, links))
-        # 保存上下文用于回调
-        from src.tg_bot import _email_contexts
-        _email_contexts[thinking_msg_id] = {
+        save_email_context(thinking_msg_id, {
             "summary_text": info["text"],
             "summary_data": info["data"],
-            "original_body": info["original_body"][:10000],
+            "original_body": info["original_body"],
+            "plain_text": info["data"].get("plain_text", ""),
             "original_sender": info.get("original_sender", ""),
             "original_recipient": info.get("original_recipient", ""),
             "original_reply_to": info.get("original_reply_to", ""),
             "account_email": info.get("account_email", ""),
+            "account_idx": info["acct_idx"],
             "sender": info["data"].get("sender", ""),
             "subject": info["data"].get("subject", ""),
             "can_reply": can_reply,
-        }
+        })
     else:
-        # 兜底：没有思考中消息就正常发送
-        send_summary(cfg.telegram, cfg.telegram.chat_id,
+        send_summary(cfg.bot_token, user.chat_id,
                      info["text"], info["data"],
                      info["original_body"], info["acct_idx"],
                      original_sender=info.get("original_sender", ""),
                      original_recipient=info.get("original_recipient", ""),
                      original_reply_to=info.get("original_reply_to", ""),
                      account_email=info.get("account_email", ""))
-    # 只有发送成功才标记已读
-    mark_as_seen(acct, [(info["uid"], info.get("folder", "INBOX"))])
-    logger.info(f"  TG 发送成功，已标记已读")
+    # 标记已读放到后台线程
+    def _bg_mark():
+        try:
+            mark_as_seen(acct, [(info["uid"], info.get("folder", "INBOX"))])
+        except Exception:
+            pass
+    threading.Thread(target=_bg_mark, daemon=True).start()
+    logger.info("  [%s] TG 发送成功，标记已读已提交后台", user.chat_id)

src/tg_bot.py

@@ -1,40 +1,41 @@
 import json
 import logging
+import threading
+from concurrent.futures import ThreadPoolExecutor
 from email.utils import parseaddr
 import requests
-from src.config import TelegramConfig, Config
+from src.config import Config, UserConfig, find_user_by_chat_id
 from src.ai_client import generate_more_replies, expand_promo_detail
 from src.smtp_client import send_reply
 from src.retry import retry
+from src.database import save_email_context, load_email_context, save_conversation, load_conversation, delete_conversation
 
 logger = logging.getLogger(__name__)
 
-_email_contexts: dict[int, dict] = {}
-# chat_id -> conversation state
-_conversations: dict[int, dict] = {}
+_ai_pool = ThreadPoolExecutor(max_workers=3, thread_name_prefix="ai_regen")
 
 
 # ── Public API ──────────────────────────────────────────
 
 @retry()
-def send_summary(tg_cfg: TelegramConfig, chat_id: str, summary_text: str,
+def send_summary(bot_token: str, chat_id: str, summary_text: str,
                  summary_data: dict, original_body: str, account_idx: int,
                  original_sender: str = "", original_recipient: str = "",
                  original_reply_to: str = "", account_email: str = "") -> int:
     can_reply = summary_data.get("can_reply", True)
     is_promotion = summary_data.get("category") == "promotion"
     links = summary_data.get("links", [])
-    result = _tg_req(tg_cfg, "sendMessage", {
+    result = _tg_req(bot_token, "sendMessage", {
         "chat_id": chat_id,
         "text": summary_text,
         "parse_mode": "MarkdownV2",
         "reply_markup": _summary_keyboard(can_reply, is_promotion, links),
     })
     msg_id = result["result"]["message_id"]
-    _email_contexts[msg_id] = {
+    save_email_context(msg_id, {
         "summary_text": summary_text,
         "summary_data": summary_data,
-        "original_body": original_body[:10000],
+        "original_body": original_body,
         "original_sender": original_sender or summary_data.get("sender", ""),
         "original_recipient": original_recipient or summary_data.get("recipient", ""),
         "original_reply_to": original_reply_to,
@@ -43,29 +44,29 @@ def send_summary(tg_cfg: TelegramConfig, chat_id: str, summary_text: str,
         "sender": summary_data.get("sender", ""),
         "subject": summary_data.get("subject", ""),
         "can_reply": can_reply,
-    }
+    })
     return msg_id
 
 
 @retry()
-def send_text(tg_cfg: TelegramConfig, chat_id: str, text: str,
+def send_text(bot_token: str, chat_id: str, text: str,
               reply_markup: dict = None) -> int:
     payload = {"chat_id": chat_id, "text": text}
     if reply_markup:
         payload["reply_markup"] = reply_markup
-    result = _tg_req(tg_cfg, "sendMessage", payload)
+    result = _tg_req(bot_token, "sendMessage", payload)
     return result["result"]["message_id"]
 
 
-def send_thinking(tg_cfg: TelegramConfig, chat_id: str) -> int:
-    result = _tg_req(tg_cfg, "sendMessage", {
+def send_thinking(bot_token: str, chat_id: str, text: str = "💭 思考中…") -> int:
+    result = _tg_req(bot_token, "sendMessage", {
         "chat_id": chat_id,
-        "text": "💭 思考中...",
+        "text": text,
     })
     return result["result"]["message_id"]
 
 
-def edit_message(tg_cfg: TelegramConfig, chat_id: str, msg_id: int,
+def edit_message(bot_token: str, chat_id: str, msg_id: int,
                  text: str, reply_markup: dict = None):
     payload = {
         "chat_id": chat_id, "message_id": msg_id,
@@ -73,24 +74,24 @@ def edit_message(tg_cfg: TelegramConfig, chat_id: str, msg_id: int,
     }
     if reply_markup:
         payload["reply_markup"] = reply_markup
-    _tg_req(tg_cfg, "editMessageText", payload)
+    _tg_req(bot_token, "editMessageText", payload)
 
 
-def delete_message(tg_cfg: TelegramConfig, chat_id: str, msg_id: int):
+def delete_message(bot_token: str, chat_id: str, msg_id: int):
     try:
-        _tg_req(tg_cfg, "deleteMessage", {
+        _tg_req(bot_token, "deleteMessage", {
             "chat_id": chat_id, "message_id": msg_id,
         })
     except Exception:
         pass
 
 
-def poll_telegram(tg_cfg: TelegramConfig, cfg: Config, last_update_id: int) -> int:
+def poll_telegram(bot_token: str, cfg: Config, last_update_id: int) -> int:
     try:
         resp = requests.get(
-            f"https://api.telegram.org/bot{tg_cfg.bot_token}/getUpdates",
-            params={"offset": last_update_id, "timeout": 10},
-            timeout=15,
+            f"https://api.telegram.org/bot{bot_token}/getUpdates",
+            params={"offset": last_update_id, "timeout": 1},
+            timeout=10,
         )
         resp.raise_for_status()
         data = resp.json()
@@ -99,7 +100,7 @@ def poll_telegram(tg_cfg: TelegramConfig, cfg: Config, last_update_id: int) -> i
         for update in data.get("result", []):
             uid = update["update_id"]
             try:
-                _handle_update(tg_cfg, cfg, update)
+                _handle_update(bot_token, cfg, update)
             except Exception as e:
                 logger.warning("处理 update %d 失败: %s", uid, e)
             last_update_id = uid + 1
@@ -168,8 +169,10 @@ def _escape(text: str) -> str:
 CALLBACK_VIEW_ORIG = "v"
 CALLBACK_VIEW_SUMM = "s"
 CALLBACK_REPLY = "r"
-CALLBACK_AI_REPLY = "a"
+CALLBACK_AI_REPLY_FULL = "af"
+CALLBACK_AI_REPLY_SHORT = "as"
 CALLBACK_SELECT_REPLY = "sr"
+CALLBACK_SEND_REPLY = "ss"  # 直接发送（不需要编辑）
 CALLBACK_REGEN = "rg"
 CALLBACK_HINT = "h"
 CALLBACK_CANCEL = "c"
@@ -189,7 +192,10 @@ def _summary_keyboard(can_reply: bool = True, is_promotion: bool = False, links:
         ],
     ]
     if can_reply:
-        kb.append([{"text": "AI回复", "callback_data": CALLBACK_AI_REPLY}])
+        kb.append([
+            {"text": "AI完整回复", "callback_data": CALLBACK_AI_REPLY_FULL},
+            {"text": "AI简洁回复", "callback_data": CALLBACK_AI_REPLY_SHORT},
+        ])
     for link in (links or []):
         url = link.get("url", "")
         text = link.get("text", "打开链接")[:30]
@@ -207,7 +213,10 @@ def _orig_keyboard(can_reply: bool = True) -> dict:
         ],
     ]
     if can_reply:
-        kb.append([{"text": "AI回复", "callback_data": CALLBACK_AI_REPLY}])
+        kb.append([
+            {"text": "AI完整回复", "callback_data": CALLBACK_AI_REPLY_FULL},
+            {"text": "AI简洁回复", "callback_data": CALLBACK_AI_REPLY_SHORT},
+        ])
     return {"inline_keyboard": kb}
 
 
@@ -222,8 +231,12 @@ def _cancel_keyboard() -> dict:
 def _ai_reply_keyboard(msg_id: int, suggestions: list) -> dict:
     kb = []
     for i, s in enumerate(suggestions):
-        data = f"{CALLBACK_SELECT_REPLY}|{msg_id}|{i}"
-        kb.append([{"text": s["text"][:30], "callback_data": data}])
+        send_data = f"{CALLBACK_SEND_REPLY}|{msg_id}|{i}"
+        edit_data = f"{CALLBACK_SELECT_REPLY}|{msg_id}|{i}"
+        kb.append([
+            {"text": f"回复{i+1} 直接发送", "callback_data": send_data},
+            {"text": f"回复{i+1} 编辑", "callback_data": edit_data},
+        ])
     kb.append([
         {"text": "换一批", "callback_data": f"{CALLBACK_REGEN}|{msg_id}"},
         {"text": "我想说：", "callback_data": f"{CALLBACK_HINT}|{msg_id}"},
@@ -234,8 +247,8 @@ def _ai_reply_keyboard(msg_id: int, suggestions: list) -> dict:
 
 # ── Telegram API ────────────────────────────────────────
 
-def _tg_req(tg_cfg: TelegramConfig, method: str, payload: dict) -> dict:
-    url = f"https://api.telegram.org/bot{tg_cfg.bot_token}/{method}"
+def _tg_req(bot_token: str, method: str, payload: dict) -> dict:
+    url = f"https://api.telegram.org/bot{bot_token}/{method}"
     logger.info("Telegram API %s: %s", method, {k: (v if k != "reply_markup" else "...") for k, v in payload.items()})
     r = requests.post(url, json=payload, timeout=30)
     if not r.ok:
@@ -249,35 +262,82 @@ def _tg_req(tg_cfg: TelegramConfig, method: str, payload: dict) -> dict:
 
 # ── Update handling ─────────────────────────────────────
 
-def _handle_update(tg_cfg: TelegramConfig, cfg: Config, update: dict):
+def _do_regen(bot_token: str, cfg: Config, chat_id: int, msg_id: int, ctx: dict, conv: dict):
+    """在 AI 线程池中执行换一批，不阻塞按钮轮询"""
+    user = find_user_by_chat_id(cfg, chat_id)
+    if not user:
+        return
+    style = conv.get("reply_style", "short")
+    try:
+        new_suggestions = generate_more_replies(
+            user.ai, ctx["sender"], ctx["subject"], ctx["original_body"],
+            conv.get("all_suggestions", []), style=style,
+        )
+    except Exception as e:
+        send_text(bot_token, str(chat_id), f"生成失败: {e}")
+        return
+    if new_suggestions:
+        conv["ai_suggestions"] = new_suggestions
+        conv["all_suggestions"].extend(new_suggestions)
+        save_conversation(chat_id, conv)
+        logger.info("[ai_regen] 新生成 %d 条回复 (style=%s)", len(new_suggestions), style)
+        _show_ai_suggestions(bot_token, chat_id, msg_id, new_suggestions)
+
+
+def _do_ai_hint(bot_token: str, cfg: Config, chat_id: int, conv: dict, ctx: dict, hint: str):
+    """在 AI 线程池中根据用户提示生成回复"""
+    user = find_user_by_chat_id(cfg, chat_id)
+    if not user:
+        return
+    style = conv.get("reply_style", "short")
+    try:
+        new_suggestions = generate_more_replies(
+            user.ai, ctx["sender"], ctx["subject"], ctx["original_body"],
+            conv.get("all_suggestions", []), user_hint=hint, style=style,
+        )
+    except Exception as e:
+        send_text(bot_token, str(chat_id), f"生成失败: {e}")
+        delete_conversation(chat_id)
+        return
+    if new_suggestions:
+        conv["ai_suggestions"] = new_suggestions
+        conv["all_suggestions"].extend(new_suggestions)
+        conv["state"] = "ai_reply_selection"
+        conv.pop("prompt_msg_id", None)
+        save_conversation(chat_id, conv)
+        logger.info("[ai_hint] 根据提示生成 %d 条新回复", len(new_suggestions))
+        _show_ai_suggestions(bot_token, chat_id, conv["summary_msg_id"], new_suggestions)
+
+
+def _handle_update(bot_token: str, cfg: Config, update: dict):
     if "callback_query" in update:
-        _handle_callback(tg_cfg, cfg, update["callback_query"])
-    elif "message" in update and "text" in update["message"]:
-        _handle_message(tg_cfg, cfg, update["message"])
+        _handle_callback(bot_token, cfg, update["callback_query"])
+    elif "message" in update:
+        _handle_message(bot_token, cfg, update["message"])
 
 
-def _handle_callback(tg_cfg: TelegramConfig, cfg: Config, cb: dict):
+def _handle_callback(bot_token: str, cfg: Config, cb: dict):
     chat_id = cb["message"]["chat"]["id"]
     msg_id = cb["message"]["message_id"]
     data = cb["data"]
     cb_id = cb["id"]
 
     try:
-        _tg_req(tg_cfg, "answerCallbackQuery", {"callback_query_id": cb_id})
+        _tg_req(bot_token, "answerCallbackQuery", {"callback_query_id": cb_id})
     except Exception:
         pass
 
     parts = data.split("|")
     action = parts[0]
 
-    ctx = _email_contexts.get(msg_id)
+    ctx = load_email_context(msg_id)
     subject = ctx["subject"] if ctx else "?"
     logger.info("TG 回调: action=%s msg_id=%d subject=%s", action, msg_id, subject)
 
     if action == CALLBACK_VIEW_ORIG and ctx:
         can_reply = ctx.get("can_reply", True)
-        text = f"*📄 原文 \\- {_escape(ctx['subject'])}*\n\n{_escape(ctx['original_body'][:3500])}"
-        _tg_req(tg_cfg, "editMessageText", {
+        text = f"*📄 原文 \\- {_escape(ctx['subject'])}*\n\n{_escape(ctx.get('plain_text', ctx['original_body']))}"
+        _tg_req(bot_token, "editMessageText", {
             "chat_id": chat_id, "message_id": msg_id,
             "text": text, "parse_mode": "MarkdownV2",
             "reply_markup": _orig_keyboard(can_reply),
@@ -286,121 +346,152 @@ def _handle_callback(tg_cfg: TelegramConfig, cfg: Config, cb: dict):
 
     elif action == CALLBACK_VIEW_SUMM and ctx:
         can_reply = ctx.get("can_reply", True)
-        _tg_req(tg_cfg, "editMessageText", {
+        is_promotion = ctx.get("summary_data", {}).get("category") == "promotion"
+        links = ctx.get("summary_data", {}).get("links", [])
+        _tg_req(bot_token, "editMessageText", {
             "chat_id": chat_id, "message_id": msg_id,
             "text": ctx["summary_text"], "parse_mode": "MarkdownV2",
-            "reply_markup": _summary_keyboard(can_reply),
+            "reply_markup": _summary_keyboard(can_reply, is_promotion, links),
         })
         logger.info("  切换回摘要视图")
 
     elif action == CALLBACK_REPLY and ctx:
         prompt_msg_id = send_text(
-            tg_cfg, str(chat_id), "请输入你的回复内容：",
+            bot_token, str(chat_id), "请输入你的回复内容：",
             reply_markup=_cancel_keyboard(),
         )
-        _conversations[chat_id] = {
+        save_conversation(chat_id, {
             "state": "awaiting_reply", "summary_msg_id": msg_id,
             "prompt_msg_id": prompt_msg_id,
-        }
+        })
         logger.info("  进入回复流程, prompt_msg_id=%d", prompt_msg_id)
 
-    elif action == CALLBACK_AI_REPLY and ctx:
-        suggestions = ctx["summary_data"].get("reply_suggestions", [])
-        if not suggestions:
-            send_text(tg_cfg, str(chat_id), "此邮件无需回复。")
-            logger.info("  AI 判定无需回复，隐藏")
-            return
+    elif action in (CALLBACK_AI_REPLY_FULL, CALLBACK_AI_REPLY_SHORT) and ctx:
+        style = "full" if action == CALLBACK_AI_REPLY_FULL else "short"
+        # 总是用对应风格重新生成，不使用摘要时的通用缓存
+        logger.info("  重新生成 AI 回复 (style=%s)", style)
+        _tg_req(bot_token, "editMessageText", {
+            "chat_id": chat_id, "message_id": msg_id,
+            "text": "🤖 *AI思考中…*", "parse_mode": "MarkdownV2",
+        })
+        conv = load_conversation(chat_id) or {}
+        conv["state"] = "ai_reply_selection"
+        conv["summary_msg_id"] = msg_id
+        conv["reply_style"] = style
+        conv["all_suggestions"] = []
+        save_conversation(chat_id, conv)
+        _ai_pool.submit(_do_regen, bot_token, cfg, chat_id, msg_id, ctx, conv)
 
-        _conversations[chat_id] = {
-            "state": "ai_reply_selection",
-            "summary_msg_id": msg_id,
-            "ai_suggestions": suggestions,
-            "all_suggestions": list(suggestions),
-        }
-        logger.info("  显示 AI 回复建议 (%d 条)", len(suggestions))
-        _show_ai_suggestions(tg_cfg, chat_id, msg_id, suggestions)
+    elif action == CALLBACK_SEND_REPLY and ctx:
+        idx = int(parts[2])
+        conv = load_conversation(chat_id)
+        if not conv or conv.get("summary_msg_id") != msg_id:
+            return
+        suggestions = conv.get("ai_suggestions", [])
+        if idx >= len(suggestions):
+            return
+        sel_text = suggestions[idx]["text"]
+        logger.info("  直接发送回复 #%d: %s", idx, sel_text[:60])
+        _do_send_reply(bot_token, cfg, chat_id, msg_id, ctx, sel_text)
+        send_text(bot_token, str(chat_id), f"✅ 回复已发送")
+        delete_conversation(chat_id)
+        can_reply = ctx.get("can_reply", True)
+        is_promotion = ctx.get("summary_data", {}).get("category") == "promotion"
+        links = ctx.get("summary_data", {}).get("links", [])
+        _tg_req(bot_token, "editMessageText", {
+            "chat_id": chat_id, "message_id": msg_id,
+            "text": ctx["summary_text"], "parse_mode": "MarkdownV2",
+            "reply_markup": _summary_keyboard(can_reply, is_promotion, links),
+        })
 
     elif action == CALLBACK_SELECT_REPLY and ctx:
         idx = int(parts[2])
-        conv = _conversations.get(chat_id)
+        conv = load_conversation(chat_id)
         if not conv or conv.get("summary_msg_id") != msg_id:
             return
         suggestions = conv.get("ai_suggestions", [])
         if idx >= len(suggestions):
             return
         sel = suggestions[idx]
-        logger.info("  选择回复 #%d: %s", idx, sel["text"][:60])
-        _do_send_reply(tg_cfg, cfg, chat_id, msg_id, ctx, sel["text"])
-        send_text(tg_cfg, str(chat_id), f"✅ 已发送: {sel['text']}")
-        _conversations.pop(chat_id, None)
-        can_reply = ctx.get("can_reply", True)
-        _tg_req(tg_cfg, "editMessageText", {
-            "chat_id": chat_id, "message_id": msg_id,
-            "text": ctx["summary_text"], "parse_mode": "MarkdownV2",
-            "reply_markup": _summary_keyboard(can_reply),
+        sel_text = sel["text"]
+        logger.info("  选择回复 #%d: %s", idx, sel_text[:60])
+
+        # 用代码块显示，点击可复制（MarkdownV2）
+        escaped = sel_text.replace("\\", "\\\\").replace("`", "\\`")
+        _tg_req(bot_token, "sendMessage", {
+            "chat_id": str(chat_id),
+            "text": f"*建议回复（点击代码块复制）:*\n`{escaped}`",
+            "parse_mode": "MarkdownV2",
         })
 
+        # 进入 awaiting_reply 状态，用户可编辑后发送
+        prompt_msg_id = send_text(
+            bot_token, str(chat_id),
+            "请编辑后发送（或直接回复附件）：",
+            reply_markup=_cancel_keyboard(),
+        )
+        conv["state"] = "awaiting_reply"
+        conv["summary_msg_id"] = msg_id
+        conv["prompt_msg_id"] = prompt_msg_id
+        conv["draft_text"] = sel_text
+        save_conversation(chat_id, conv)
+        logger.info("  建议已展示，等待用户编辑发送")
+
     elif action == CALLBACK_REGEN and ctx:
-        conv = _conversations.get(chat_id)
+        conv = load_conversation(chat_id)
         if not conv or conv.get("summary_msg_id") != msg_id:
             return
         logger.info("  换一批 (已有 %d 条历史)", len(conv.get("all_suggestions", [])))
-        # 先显示思考中
-        _tg_req(tg_cfg, "editMessageText", {
+        # AI 处理中
+        _tg_req(bot_token, "editMessageText", {
             "chat_id": chat_id, "message_id": msg_id,
-            "text": "💭 思考中...", "parse_mode": None,
+            "text": "🤖 *AI思考中…*", "parse_mode": "MarkdownV2",
         })
-        try:
-            new_suggestions = generate_more_replies(
-                cfg.ai, ctx["sender"], ctx["subject"], ctx["original_body"],
-                conv.get("all_suggestions", []),
-            )
-        except Exception as e:
-            send_text(tg_cfg, str(chat_id), f"生成失败: {e}")
-            return
-        if new_suggestions:
-            conv["ai_suggestions"] = new_suggestions
-            conv["all_suggestions"].extend(new_suggestions)
-            logger.info("  新生成 %d 条回复", len(new_suggestions))
-            _show_ai_suggestions(tg_cfg, chat_id, msg_id, new_suggestions)
+        # 丢到 AI 线程池处理，不阻塞按钮轮询
+        _ai_pool.submit(_do_regen, bot_token, cfg, chat_id, msg_id, ctx, conv)
 
     elif action == CALLBACK_HINT and ctx:
         prompt_msg_id = send_text(
-            tg_cfg, str(chat_id), "请输入你对回复的提示/要求：",
+            bot_token, str(chat_id), "请输入你对回复的提示/要求：",
             reply_markup=_cancel_keyboard(),
         )
-        conv = _conversations.get(chat_id)
+        conv = load_conversation(chat_id)
         if conv and conv.get("summary_msg_id") == msg_id:
             conv["state"] = "awaiting_ai_hint"
             conv["prompt_msg_id"] = prompt_msg_id
+            save_conversation(chat_id, conv)
             logger.info("  等待用户输入 AI 提示")
 
     elif action == CALLBACK_CANCEL:
-        _conversations.pop(chat_id, None)
+        delete_conversation(chat_id)
+        # 清除回复建议缓存，重新选择时会重新生成
         if ctx:
+            ctx["summary_data"]["reply_suggestions"] = []
+            save_email_context(msg_id, ctx)
             can_reply = ctx.get("can_reply", True)
-            _tg_req(tg_cfg, "editMessageText", {
+            is_promotion = ctx.get("summary_data", {}).get("category") == "promotion"
+            links = ctx.get("summary_data", {}).get("links", [])
+            _tg_req(bot_token, "editMessageText", {
                 "chat_id": chat_id, "message_id": msg_id,
                 "text": ctx["summary_text"], "parse_mode": "MarkdownV2",
-                "reply_markup": _summary_keyboard(can_reply),
+                "reply_markup": _summary_keyboard(can_reply, is_promotion, links),
             })
             logger.info("  取消, 恢复摘要视图")
         else:
-            delete_message(tg_cfg, str(chat_id), msg_id)
+            delete_message(bot_token, str(chat_id), msg_id)
             logger.info("  取消, 删除提示消息")
 
     elif action == CALLBACK_PROMO_DETAIL and ctx:
-        # 先显示思考中
-        _tg_req(tg_cfg, "editMessageText", {
+        _tg_req(bot_token, "editMessageText", {
             "chat_id": chat_id, "message_id": msg_id,
-            "text": "💭 思考中...", "parse_mode": None,
+            "text": "🤖 *AI思考中…*", "parse_mode": "MarkdownV2",
         })
         try:
             details = expand_promo_detail(
                 cfg.ai, ctx["sender"], ctx["subject"], ctx["original_body"],
             )
         except Exception as e:
-            send_text(tg_cfg, str(chat_id), f"获取详情失败: {e}")
+            send_text(bot_token, str(chat_id), f"获取详情失败: {e}")
             return
         summary = ctx["summary_data"].get("summary", "")
         detail_lines = "\n".join(f"\\- {_escape(d)}" for d in details) if details else "暂无更多详情"
@@ -411,7 +502,7 @@ def _handle_callback(tg_cfg: TelegramConfig, cfg: Config, cb: dict):
             f"\n{_escape(summary)}\n"
             f"\n*📋 详情:*\n{detail_lines}"
         )
-        _tg_req(tg_cfg, "editMessageText", {
+        _tg_req(bot_token, "editMessageText", {
             "chat_id": chat_id, "message_id": msg_id,
             "text": expanded, "parse_mode": "MarkdownV2",
             "reply_markup": {"inline_keyboard": [
@@ -422,10 +513,11 @@ def _handle_callback(tg_cfg: TelegramConfig, cfg: Config, cb: dict):
         logger.info("  显示推广详情")
 
 
-def _handle_message(tg_cfg: TelegramConfig, cfg: Config, msg: dict):
+def _handle_message(bot_token: str, cfg: Config, msg: dict):
     chat_id = msg["chat"]["id"]
-    text = msg["text"].strip()
-    conv = _conversations.get(chat_id)
+    text = msg.get("text") or msg.get("caption") or ""
+    text = text.strip()
+    conv = load_conversation(chat_id)
 
     if not conv:
         return
@@ -434,75 +526,146 @@ def _handle_message(tg_cfg: TelegramConfig, cfg: Config, msg: dict):
     chat_id_str = str(chat_id)
     prompt_msg_id = conv.get("prompt_msg_id")
     state = conv.get("state")
+    media = _extract_media(msg)
 
-    logger.info("TG 消息: state=%s text=%s", state, text[:60])
+    logger.info("TG 消息: state=%s text=%s media=%d", state, text[:60] if text else "(无)", len(media))
 
     if state == "awaiting_reply":
-        ctx = _email_contexts.get(conv["summary_msg_id"])
+        ctx = load_email_context(conv["summary_msg_id"])
         if not ctx:
-            _conversations.pop(chat_id, None)
-            delete_message(tg_cfg, chat_id_str, user_msg_id)
+            delete_conversation(chat_id)
+            delete_message(bot_token, chat_id_str, user_msg_id)
             if prompt_msg_id:
-                delete_message(tg_cfg, chat_id_str, prompt_msg_id)
+                delete_message(bot_token, chat_id_str, prompt_msg_id)
             logger.info("  上下文已丢失，清理")
             return
 
-        delete_message(tg_cfg, chat_id_str, user_msg_id)
+        delete_message(bot_token, chat_id_str, user_msg_id)
         if prompt_msg_id:
-            delete_message(tg_cfg, chat_id_str, prompt_msg_id)
-        _do_send_reply(tg_cfg, cfg, chat_id, conv["summary_msg_id"], ctx, text)
-        send_text(tg_cfg, chat_id_str, f"✅ 回复已发送: {text}")
-        _conversations.pop(chat_id, None)
+            delete_message(bot_token, chat_id_str, prompt_msg_id)
+
+        # 合并累积的附件
+        all_attachments = conv.get("pending_attachments", [])
+        all_attachments.extend(media)
+
+        _do_send_reply(bot_token, cfg, chat_id, conv["summary_msg_id"], ctx, text,
+                       attachments=all_attachments or None)
+        attach_info = f" (+{len(all_attachments)}个附件)" if all_attachments else ""
+        send_text(bot_token, chat_id_str, f"✅ 回复已发送{attach_info}")
+        delete_conversation(chat_id)
         logger.info("  回复发送完成")
 
     elif state == "awaiting_ai_hint":
-        ctx = _email_contexts.get(conv["summary_msg_id"])
+        ctx = load_email_context(conv["summary_msg_id"])
         if not ctx:
-            _conversations.pop(chat_id, None)
-            delete_message(tg_cfg, chat_id_str, user_msg_id)
+            delete_conversation(chat_id)
+            delete_message(bot_token, chat_id_str, user_msg_id)
             if prompt_msg_id:
-                delete_message(tg_cfg, chat_id_str, prompt_msg_id)
+                delete_message(bot_token, chat_id_str, prompt_msg_id)
             return
 
-        delete_message(tg_cfg, chat_id_str, user_msg_id)
+        delete_message(bot_token, chat_id_str, user_msg_id)
         if prompt_msg_id:
-            delete_message(tg_cfg, chat_id_str, prompt_msg_id)
-        try:
-            new_suggestions = generate_more_replies(
-                cfg.ai, ctx["sender"], ctx["subject"], ctx["original_body"],
-                conv.get("all_suggestions", []), user_hint=text,
-            )
-        except Exception as e:
-            send_text(tg_cfg, chat_id_str, f"生成失败: {e}")
-            _conversations.pop(chat_id, None)
-            return
+            delete_message(bot_token, chat_id_str, prompt_msg_id)
 
-        if new_suggestions:
-            conv["ai_suggestions"] = new_suggestions
-            conv["all_suggestions"].extend(new_suggestions)
-            conv["state"] = "ai_reply_selection"
-            conv.pop("prompt_msg_id", None)
-            logger.info("  根据提示生成 %d 条新回复", len(new_suggestions))
-            _show_ai_suggestions(tg_cfg, chat_id, conv["summary_msg_id"], new_suggestions)
+        # 更新消息为 AI 思考中
+        _tg_req(bot_token, "editMessageText", {
+            "chat_id": chat_id, "message_id": conv["summary_msg_id"],
+            "text": "🤖 *AI思考中…*", "parse_mode": "MarkdownV2",
+        })
+        # 丢到 AI 线程池处理
+        _ai_pool.submit(_do_ai_hint, bot_token, cfg, chat_id, conv, ctx, text)
 
 
-def _show_ai_suggestions(tg_cfg: TelegramConfig, chat_id: int, msg_id: int,
+def _show_ai_suggestions(bot_token: str, chat_id: int, msg_id: int,
                          suggestions: list):
     text = "*AI 建议回复，请选择：*\n\n"
     for i, s in enumerate(suggestions, 1):
         text += f"{i}\\. {_escape(s['text'])}\n"
-    _tg_req(tg_cfg, "editMessageText", {
+    _tg_req(bot_token, "editMessageText", {
         "chat_id": chat_id, "message_id": msg_id,
         "text": text, "parse_mode": "MarkdownV2",
         "reply_markup": _ai_reply_keyboard(msg_id, suggestions),
     })
 
 
-def _do_send_reply(tg_cfg: TelegramConfig, cfg: Config,
-                   chat_id: int, msg_id: int, ctx: dict, reply_text: str):
-    acct = cfg.email_accounts[ctx["account_idx"]]
+def _download_tg_file(bot_token: str, file_id: str, filename: str) -> str:
+    """从 Telegram 下载文件到本地 media/ 目录，返回本地路径"""
+    import os
+    from pathlib import Path
+    media_dir = Path("media")
+    media_dir.mkdir(exist_ok=True)
+    resp = requests.get(
+        f"https://api.telegram.org/bot{bot_token}/getFile",
+        params={"file_id": file_id}, timeout=30,
+    )
+    resp.raise_for_status()
+    file_path = resp.json()["result"]["file_path"]
+    dl = requests.get(
+        f"https://api.telegram.org/file/bot{bot_token}/{file_path}",
+        timeout=60,
+    )
+    dl.raise_for_status()
+    dest = media_dir / filename
+    dest.write_bytes(dl.content)
+    logger.info("  下载附件: %s (%d bytes)", filename, len(dl.content))
+    return str(dest)
+
+
+def _extract_media(msg: dict) -> list[dict]:
+    """从 Telegram 消息中提取附件信息列表 [{file_id, filename, mime_type}]"""
+    attachments = []
+    # 照片取最大尺寸
+    if "photo" in msg:
+        photo = max(msg["photo"], key=lambda p: p.get("file_size", 0))
+        ext = ".jpg"
+        attachments.append({
+            "file_id": photo["file_id"],
+            "filename": f"photo_{photo['file_id'][:8]}{ext}",
+            "mime_type": "image/jpeg",
+        })
+    if "video" in msg:
+        v = msg["video"]
+        attachments.append({
+            "file_id": v["file_id"],
+            "filename": v.get("file_name", f"video_{v['file_id'][:8]}.mp4"),
+            "mime_type": v.get("mime_type", "video/mp4"),
+        })
+    if "document" in msg:
+        d = msg["document"]
+        attachments.append({
+            "file_id": d["file_id"],
+            "filename": d.get("file_name", f"doc_{d['file_id'][:8]}"),
+            "mime_type": d.get("mime_type", "application/octet-stream"),
+        })
+    if "voice" in msg:
+        vc = msg["voice"]
+        attachments.append({
+            "file_id": vc["file_id"],
+            "filename": f"voice_{vc['file_id'][:8]}.ogg",
+            "mime_type": vc.get("mime_type", "audio/ogg"),
+        })
+    if "sticker" in msg:
+        s = msg["sticker"]
+        if not s.get("is_animated"):
+            attachments.append({
+                "file_id": s["file_id"],
+                "filename": f"sticker_{s['file_id'][:8]}.webp",
+                "mime_type": "image/webp",
+            })
+    return attachments
+
+
+def _do_send_reply(bot_token: str, cfg: Config,
+                   chat_id: int, msg_id: int, ctx: dict, reply_text: str,
+                   attachments: list[dict] | None = None):
+    user = find_user_by_chat_id(cfg, chat_id)
+    if not user:
+        send_text(bot_token, str(chat_id), "❌ 用户未找到。")
+        return
+    acct = user.email_accounts[ctx["account_idx"]]
     if not acct.smtp:
-        send_text(tg_cfg, str(chat_id), "❌ 该邮箱未配置 SMTP，无法发送回复。")
+        send_text(bot_token, str(chat_id), "❌ 该邮箱未配置 SMTP，无法发送回复。")
         return
     to_addr = parseaddr(ctx.get("original_reply_to", ""))[1]
     if not to_addr:
@@ -512,4 +675,15 @@ def _do_send_reply(tg_cfg: TelegramConfig, cfg: Config,
     if not to_addr:
         to_addr = ctx["sender"]
     subject = ctx["subject"]
-    send_reply(acct, to_addr, subject, reply_text)
+
+    # 下载 Telegram 附件到本地
+    local_files = []
+    if attachments:
+        for att in attachments:
+            try:
+                path = _download_tg_file(bot_token, att["file_id"], att["filename"])
+                local_files.append((path, att["mime_type"]))
+            except Exception as e:
+                logger.error("  附件下载失败: %s - %s", att["filename"], e)
+
+    send_reply(acct, to_addr, subject, reply_text, attachments=local_files or None)