修复：升级 Pydantic v2 兼容性，修复插件加载错误

- 更新 danding_points 配置使用 pydantic_settings.BaseSettings 和 SettingsConfigDict
- 更新 onmyoji_gacha 配置使用 pydantic_settings.BaseSettings
- 修复 danding_qqpush 配置加载使用 model_validate 替代 parse_obj
- 添加 group_horse_racing 插件的详细 README 文档

这些修复解决了 Pydantic v2 迁移中的导入错误和 API 变更问题。

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

danding_bot/plugins/onmyoji_gacha/config.py

@@ -1,7 +1,9 @@
-from pydantic import BaseSettings
+from pydantic_settings import BaseSettings, SettingsConfigDict
 import os
 
 class Config(BaseSettings):
+    model_config = SettingsConfigDict(extra="ignore")
+
     # 抽卡概率配置
     RARITY_PROBABILITY: dict = {
         "R": 78.75,
@@ -9,18 +11,18 @@ class Config(BaseSettings):
         "SSR": 1.0,
         "SP": 0.25
     }
-    
+
     # 每日抽卡限制
     DAILY_LIMIT: int = 3
-    
+
     # 数据文件路径
     DB_FILE: str = "data/onmyoji_gacha/gacha.db"
     DAILY_DRAWS_FILE: str = "data/onmyoji_gacha/daily_draws.json"  # 保留用于迁移
     USER_STATS_FILE: str = "data/onmyoji_gacha/user_stats.json"    # 保留用于迁移
-    
+
     # 式神图片目录
     SHIKIGAMI_IMG_DIR: str = "data/chouka/"
-    
+
     # 触发指令
     GACHA_COMMANDS: list = ["抽卡","抽奖", "召唤"]
     STATS_COMMANDS: list = ["我的抽卡","我的抽奖", "我的图鉴"]
@@ -28,7 +30,7 @@ class Config(BaseSettings):
     TRIPLE_GACHA_COMMANDS: list = ["三连", "三连抽"]
     ACHIEVEMENT_COMMANDS: list = ["查询成就", "抽卡成就"]
     INTRO_COMMANDS: list = ["抽卡介绍", "抽卡说明", "抽卡帮助"]
-    
+
     # 成就系统配置
     ACHIEVEMENTS: dict = {
         "consecutive_days_30_1": {
@@ -99,20 +101,17 @@ class Config(BaseSettings):
             "type": "no_ssr_streak"
         }
     }
-    
+
     # 权限配置
     ALLOWED_GROUP_ID: int = 621016172
     ALLOWED_USER_ID: int = 1424473282
-    
+
     # 特殊概率用户配置
     SPECIAL_PROBABILITY_USERS: list = ["1424473282"]  # 100%抽到SSR或SP的用户列表
-    
+
     # Web后台管理配置
     WEB_ADMIN_TOKEN: str = os.getenv("WEB_ADMIN_TOKEN", "onmyoji_admin_token_2024")
     WEB_ADMIN_PORT: int = int(os.getenv("WEB_ADMIN_PORT", "8080"))
-    
+
     # 时区
-    TIMEZONE: str = "Asia/Shanghai"
-    
-    class Config:
-        extra = "ignore"
+    TIMEZONE: str = "Asia/Shanghai"