系统业务任务插件化迁移：下沉7项非刚需任务并接入平滑迁移

- 系统任务保留刚需三项：登录巡检、消息计数入库、媒体补偿处理；移除新闻/Epic/排行/PDF/秀人维护等业务型系统任务定义\n- 新增 daily_news、epic_free、daily_ranking、sehuatang_push 四个插件，将原系统业务任务改为插件可调度动作\n- 扩展 xiuren_image 插件调度动作，新增秀人下载、绅士R15下载、图片缓存更新三项维护任务\n- 新增系统任务到插件任务的幂等迁移逻辑：按旧 job_key 映射到插件 action，同步 trigger_type/trigger_config/enabled，并通过 payload 标记防止反复覆盖\n- 在 Robot 启动流程中接入迁移执行与重载，并清理已迁移的历史系统任务记录，避免后台双份维护\n- 扩展插件调度数据库操作：支持按 plugin_name + action_key 精确查询，便于迁移与对账

plugins/daily_news/main.py

@@ -0,0 +1,153 @@
+# -*- coding: utf-8 -*-
+import asyncio
+import base64
+from typing import Any, Dict, List, Optional, Tuple
+
+import requests
+
+from base.func_news import News
+from base.plugin_common.message_plugin_interface import MessagePluginInterface
+from base.plugin_common.plugin_interface import PluginStatus
+from utils.robot_cmd.robot_command import GroupBotManager
+from wechat_ipad.models.appmsg_xml import LINK_XML_NEWS
+
+
+class DailyNewsPlugin(MessagePluginInterface):
+    """每日新闻定时插件。"""
+
+    FEATURE_KEY = "DAILY_NEWS"
+    FEATURE_DESCRIPTION = "📰 每日新闻自动播报 [每日8:30定时发送]"
+
+    @property
+    def name(self) -> str:
+        return "每日新闻"
+
+    @property
+    def version(self) -> str:
+        return "1.0.0"
+
+    @property
+    def description(self) -> str:
+        return "将百度新闻日报能力下沉为插件定时任务。"
+
+    @property
+    def author(self) -> str:
+        return "ABOT Team"
+
+    @property
+    def commands(self) -> List[str]:
+        # 该插件只负责后台调度，不处理前台命令。
+        return []
+
+    @property
+    def feature_key(self) -> Optional[str]:
+        return self.FEATURE_KEY
+
+    @property
+    def feature_description(self) -> Optional[str]:
+        return self.FEATURE_DESCRIPTION
+
+    def __init__(self):
+        super().__init__()
+        self.feature = self.register_feature()
+
+    def initialize(self, context: Dict[str, Any]) -> bool:
+        self.LOG.debug(f"正在初始化 {self.name} 插件...")
+        return True
+
+    def start(self) -> bool:
+        self.status = PluginStatus.RUNNING
+        return True
+
+    def stop(self) -> bool:
+        self.status = PluginStatus.STOPPED
+        return True
+
+    def can_process(self, message: Dict[str, Any]) -> bool:
+        return False
+
+    async def process_message(self, message: Dict[str, Any]) -> Tuple[bool, Optional[str]]:
+        return False, None
+
+    def get_schedule_actions(self) -> List[Dict[str, Any]]:
+        """声明插件可调度动作。"""
+        return [
+            {
+                "action_key": "baidu_news_daily_push",
+                "name": "百度新闻日报推送",
+                "description": "每天推送百度新闻文本、60秒新闻图和资讯卡片",
+                "trigger_type": "at_times",
+                "trigger_config": {"time_list": ["08:30"]},
+                "target_scope": "all_enabled_groups",
+                "target_config": {},
+                "payload": {},
+                "default_enabled": True,
+            }
+        ]
+
+    async def run_scheduled_action(self, action_key: str, context: Dict[str, Any]) -> Dict[str, Any]:
+        if action_key != "baidu_news_daily_push":
+            return {
+                "success": False,
+                "summary": f"不支持的动作: {action_key}",
+                "detail": {"action_key": action_key},
+            }
+
+        if not self.bot:
+            return {"success": False, "summary": "bot 未注入", "detail": {}}
+
+        target_groups = [str(g).strip() for g in (context.get("target_groups") or []) if str(g).strip()]
+        if not target_groups:
+            # 兜底：当后台未指定范围时，直接按群功能开关收集目标群。
+            target_groups = [
+                gid for gid in GroupBotManager.get_group_list()
+                if GroupBotManager.get_group_permission(gid, self.feature).value == "enabled"
+            ]
+
+        if not target_groups:
+            return {"success": False, "summary": "没有可推送目标群", "detail": {"target_count": 0}}
+
+        try:
+            # 新闻抓取为同步逻辑，放入线程池避免阻塞调度主循环。
+            text_news = await asyncio.to_thread(News().get_baidu_news)
+            image_url = await asyncio.to_thread(News().get_news_60s)
+        except Exception as e:
+            return {"success": False, "summary": f"新闻抓取失败: {e}", "detail": {"error": str(e)}}
+
+        # 图片接口返回 URL，统一下载为 base64 再发送，兼容 wechat_ipad 图片发送接口。
+        image_base64 = ""
+        if image_url:
+            try:
+                image_base64 = await asyncio.to_thread(self._download_image_as_base64, image_url)
+            except Exception as e:
+                self.LOG.warning(f"每日新闻图片下载失败，将仅发送文本和卡片: {e}")
+
+        success_groups = []
+        failed_groups = {}
+        for gid in target_groups:
+            try:
+                if text_news:
+                    await self.bot.send_text_message(gid, text_news)
+                if image_base64:
+                    await self.bot.send_image_message(gid, image_base64)
+                await self.bot.send_link_xml_message(LINK_XML_NEWS, gid)
+                success_groups.append(gid)
+            except Exception as e:
+                failed_groups[gid] = str(e)
+
+        return {
+            "success": len(failed_groups) == 0,
+            "summary": f"每日新闻推送完成: 成功{len(success_groups)}群, 失败{len(failed_groups)}群",
+            "detail": {
+                "target_count": len(target_groups),
+                "success_groups": success_groups,
+                "failed_groups": failed_groups,
+            },
+        }
+
+    @staticmethod
+    def _download_image_as_base64(url: str) -> str:
+        """下载图片并转为 base64，便于统一发送。"""
+        resp = requests.get(url, timeout=15)
+        resp.raise_for_status()
+        return base64.b64encode(resp.content).decode("utf-8")