From fe24a07d155bff0211c2054e271c9e4eebf65d61 Mon Sep 17 00:00:00 2001
From: Zichao Lin <earthjasonlin@163.com>
Date: Fri, 17 Jul 2026 18:36:53 +0800
Subject: [PATCH] fix: parse_mode always MarkdownV2, add MEMORY.md with project
 rules

---
 MEMORY.md     | 5 +++++
 src/tg_bot.py | 4 ++--
 2 files changed, 7 insertions(+), 2 deletions(-)
 create mode 100644 MEMORY.md

diff --git a/MEMORY.md b/MEMORY.md
new file mode 100644
index 0000000..d270a36
--- /dev/null
+++ b/MEMORY.md
@@ -0,0 +1,5 @@
+# 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。
diff --git a/src/tg_bot.py b/src/tg_bot.py
index b9abb40..8c0c369 100644
--- a/src/tg_bot.py
+++ b/src/tg_bot.py
@@ -367,7 +367,7 @@ def _handle_callback(tg_cfg: TelegramConfig, cfg: Config, cb: dict):
         # AI 处理中
         _tg_req(tg_cfg, "editMessageText", {
             "chat_id": chat_id, "message_id": msg_id,
-            "text": "🤖 AI思考中...",
+            "text": "🤖 *AI思考中…*", "parse_mode": "MarkdownV2",
         })
         # 丢到 AI 线程池处理，不阻塞按钮轮询
         _ai_pool.submit(_do_regen, cfg, chat_id, msg_id, ctx, conv)
@@ -400,7 +400,7 @@ def _handle_callback(tg_cfg: TelegramConfig, cfg: Config, cb: dict):
     elif action == CALLBACK_PROMO_DETAIL and ctx:
         _tg_req(tg_cfg, "editMessageText", {
             "chat_id": chat_id, "message_id": msg_id,
-            "text": "🤖 AI思考中...", "parse_mode": None,
+            "text": "🤖 *AI思考中…*", "parse_mode": "MarkdownV2",
         })
         try:
             details = expand_promo_detail(