新增强制重生成日报指令，支持跳过缓存验证弹幕总结效果

1. 新增指令：#强制斗鱼弹幕日报（支持带日期参数）\n2. 强制指令执行时跳过日报缓存读取，直接重生成文本与图片并覆盖缓存\n3. _send_daily_reports 增加 force_regenerate 参数并向下传递\n4. 保留原 #斗鱼弹幕日报 行为不变，兼容既有使用方式\n5. 补充中文注释，说明强制重生成的用途与行为

plugins/douyu/main.py

@@ -505,7 +505,8 @@ class DouyuPlugin(MessagePluginInterface):
         self.feature = self.register_feature()
         self.redis_manager: Optional[DouyuRedisManager] = None
         self._commands = ["斗鱼订阅", "取消斗鱼订阅", "斗鱼订阅列表", "斗鱼订阅提醒", "取消斗鱼订阅提醒",
-                          "订阅鱼吧", "取消订阅鱼吧", "鱼吧订阅列表", "#斗鱼弹幕日报", "斗鱼弹幕日报"]
+                          "订阅鱼吧", "取消订阅鱼吧", "鱼吧订阅列表",
+                          "#斗鱼弹幕日报", "斗鱼弹幕日报", "#强制斗鱼弹幕日报", "强制斗鱼弹幕日报"]
         self._api_template = "https://www.douyu.com/betard/{room_id}"
         self._yuba_api = "https://yuba.douyu.com/wgapi/yubanc/api/feed/getUserFeedList"
         self._user_agent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36"
@@ -741,6 +742,32 @@ class DouyuPlugin(MessagePluginInterface):
             await self.bot.send_text_message(roomid, f"暂无可发送的斗鱼弹幕日报：{anchor_day}", sender)
             return True, "暂无日报"
 
+        if first_token in {"#强制斗鱼弹幕日报", "强制斗鱼弹幕日报"}:
+            if not roomid:
+                await self.bot.send_text_message(sender, "请在群聊中使用该命令", sender)
+                return True, "仅支持群聊"
+            parts = content.split()
+            anchor_day = (datetime.now() - timedelta(days=1)).strftime("%Y-%m-%d")
+            if len(parts) >= 2:
+                day_text = parts[1].strip()
+                try:
+                    anchor_day = datetime.strptime(day_text, "%Y-%m-%d").strftime("%Y-%m-%d")
+                except Exception:
+                    await self.bot.send_text_message(roomid, "日期格式错误，请使用：#强制斗鱼弹幕日报 2026-04-07", sender)
+                    return True, "日期格式错误"
+            # 这里明确提示“强制重生成”，便于群内区分普通日报和回归测试操作。
+            await self.bot.send_text_message(roomid, f"⏳ 正在强制重生成斗鱼弹幕日报：{anchor_day}", sender)
+            delivered = await self._send_daily_reports(
+                anchor_day,
+                target_group_id=roomid,
+                force=True,
+                force_regenerate=True,
+            )
+            if delivered:
+                return True, f"斗鱼弹幕日报已强制重生成并发送：{anchor_day}"
+            await self.bot.send_text_message(roomid, f"暂无可发送的斗鱼弹幕日报：{anchor_day}", sender)
+            return True, "暂无日报"
+
         return False, None
 
     async def _scheduled_check_job(self):
@@ -1908,8 +1935,17 @@ class DouyuPlugin(MessagePluginInterface):
             )
         return self._build_fallback_daily_report(payload)
 
-    async def _get_or_create_daily_report_result(self, room_id: str, anchor_day: str, payload: Dict[str, Any]) -> Dict[str, Any]:
-        cached = self._load_daily_report_cache(room_id, anchor_day) or {}
+    async def _get_or_create_daily_report_result(
+        self,
+        room_id: str,
+        anchor_day: str,
+        payload: Dict[str, Any],
+        *,
+        force_regenerate: bool = False,
+    ) -> Dict[str, Any]:
+        # force_regenerate=True 时，跳过本地缓存读取，直接重新生成文本/图片并覆盖缓存。
+        # 这样可以在模型提示词或模板变更后，通过命令立即验证最新效果。
+        cached = {} if force_regenerate else (self._load_daily_report_cache(room_id, anchor_day) or {})
         cached_image = self._resolve_existing_report_image(cached.get("report_image"))
         cached_text = str(cached.get("report_text") or "").strip()
         cached_version = int(cached.get("cache_version", 0) or 0)
@@ -1942,6 +1978,7 @@ class DouyuPlugin(MessagePluginInterface):
         anchor_day: str,
         target_group_id: Optional[str] = None,
         force: bool = False,
+        force_regenerate: bool = False,
     ) -> bool:
         rooms = (
             set(self.redis_manager.list_group_rooms(target_group_id))
@@ -1972,7 +2009,12 @@ class DouyuPlugin(MessagePluginInterface):
                     f"sessions={len(sessions)}, min_messages={self._daily_report_min_messages}"
                 )
                 continue
-            report_result = await self._get_or_create_daily_report_result(room_id, anchor_day, payload)
+            report_result = await self._get_or_create_daily_report_result(
+                room_id,
+                anchor_day,
+                payload,
+                force_regenerate=force_regenerate,
+            )
             report_text = str(report_result.get("report_text") or "").strip()
             report_image = self._resolve_existing_report_image(report_result.get("report_image"))
             groups = [target_group_id] if target_group_id else self.redis_manager.groups_for_room(room_id)