重构：新增定时插件业务逻辑内聚到各自插件目录

- daily_news 插件内置百度新闻与60s图片获取逻辑，移除对 base.func_news 的业务依赖\n- epic_free 插件内置周五判断与免费游戏抓取逻辑，移除对 base.func_epic 的业务依赖\n- daily_ranking 插件内置排行生成与积分奖励逻辑，不再依赖 MessageStorage 业务封装\n- sehuatang_push 改为引用插件目录内的抓取与PDF生成实现，将核心业务代码迁入插件目录\n- 确保新插件可独立承载自身业务逻辑，平台层仅提供调度与基础设施能力

plugins/daily_ranking/main.py

@@ -1,10 +1,13 @@
 # -*- coding: utf-8 -*-
+from datetime import datetime, timedelta
 from typing import Any, Dict, List, Optional, Tuple
 
 from base.plugin_common.message_plugin_interface import MessagePluginInterface
 from base.plugin_common.plugin_interface import PluginStatus
+from db.message_storage import MessageStorageDB
+from db.points_db import PointSource, PointsDBOperator
 from utils.robot_cmd.robot_command import GroupBotManager
-from utils.wechat.message_to_db import MessageStorage
+from utils.wechat.contact_manager import ContactManager
 
 
 class DailyRankingPlugin(MessagePluginInterface):
@@ -44,11 +47,16 @@ class DailyRankingPlugin(MessagePluginInterface):
     def __init__(self):
         super().__init__()
         self.feature = self.register_feature()
-        self.message_storage: Optional[MessageStorage] = None
+        self.message_db: Optional[MessageStorageDB] = None
+        self.points_db: Optional[PointsDBOperator] = None
 
     def initialize(self, context: Dict[str, Any]) -> bool:
-        # 与历史系统逻辑保持一致，直接复用 MessageStorage 的排行生成能力。
-        self.message_storage = MessageStorage()
+        db_manager = context.get("db_manager")
+        if db_manager is None:
+            return False
+        # 排行业务逻辑下沉到插件内，仅复用 DB Operator 作为数据访问层。
+        self.message_db = MessageStorageDB(db_manager)
+        self.points_db = PointsDBOperator(db_manager)
         return True
 
     def start(self) -> bool:
@@ -89,8 +97,8 @@ class DailyRankingPlugin(MessagePluginInterface):
             }
         if not self.bot:
             return {"success": False, "summary": "bot 未注入", "detail": {}}
-        if not self.message_storage:
-            return {"success": False, "summary": "message_storage 未初始化", "detail": {}}
+        if not self.message_db or not self.points_db:
+            return {"success": False, "summary": "排行依赖未初始化", "detail": {}}
 
         target_groups = [str(g).strip() for g in (context.get("target_groups") or []) if str(g).strip()]
         if not target_groups:
@@ -105,7 +113,7 @@ class DailyRankingPlugin(MessagePluginInterface):
         failed_groups = {}
         for gid in target_groups:
             try:
-                ok, text = await self.message_storage.generate_and_send_ranking(gid, {})
+                ok, text = await self._generate_and_send_ranking(gid)
                 if ok and text:
                     await self.bot.send_text_message(gid, text)
                 success_groups.append(gid)
@@ -121,3 +129,48 @@ class DailyRankingPlugin(MessagePluginInterface):
                 "failed_groups": failed_groups,
             },
         }
+
+    async def _generate_and_send_ranking(self, group_id: str) -> Tuple[bool, str]:
+        """生成并奖励发言排行（插件内实现）。"""
+        if not self.message_db or not self.points_db:
+            return False, "排行依赖未初始化"
+
+        yesterday = (datetime.now() - timedelta(days=1)).strftime("%Y-%m-%d")
+        rows = self.message_db.get_speech_ranking(yesterday, group_id, limit=20)
+        if not rows:
+            return False, f"📊 {yesterday} 没有发言记录"
+
+        contact_manager = ContactManager.get_instance()
+        ranking_lines = [f"🏆 {yesterday} 发言排行榜 🏆"]
+        for rank, row in enumerate(rows, start=1):
+            wxid = row.get("wx_id")
+            speech_count = int(row.get("speech_count") or 0)
+            display_name = contact_manager.get_group_name(group_id, wxid) or wxid
+
+            reward = 0
+            if rank == 1:
+                reward = 30
+                ranking_lines.append(f"🥇🐲 {rank}.{display_name}: {speech_count}次 🔥 +{reward}积分")
+            elif rank == 2:
+                reward = 20
+                ranking_lines.append(f"🥈 {rank}.{display_name}: {speech_count}次 ✨ +{reward}积分")
+            elif rank == 3:
+                reward = 10
+                ranking_lines.append(f"🥉 {rank}.{display_name}: {speech_count}次 👏 +{reward}积分")
+            elif rank <= 10:
+                reward = 5
+                ranking_lines.append(f"🌟 {rank}.{display_name}: {speech_count}次 +{reward}积分")
+            else:
+                reward = 3
+                ranking_lines.append(f"👍 {rank}.{display_name}: {speech_count}次 +{reward}积分")
+
+            if reward > 0:
+                self.points_db.add_points(
+                    wxid,
+                    group_id,
+                    reward,
+                    PointSource.OTHER,
+                    f"{yesterday}发言排行第{rank}名奖励",
+                )
+
+        return True, "\n".join(ranking_lines)