fix(danding_api): 从NoneBot2 driver.config读取token

.env 被 NoneBot2 读入 driver.config（小写键名）而非 os.environ，
改用 getattr(driver.config, "danding_api_token") 获取。

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

danding_bot/plugins/danding_api/utils.py

@@ -1,28 +1,18 @@
 import os
 import asyncio
 import aiohttp
-from nonebot import get_plugin_config
+from nonebot import get_plugin_config, get_driver
 from .config import Config
 from nonebot import logger
 
 plugin_config = get_plugin_config(Config)
 
-# get_plugin_config 不一定读取环境变量，手动兜底
+# NoneBot2 把 .env 读入 driver.config 而非 os.environ，手动兜底
+_driver_config = get_driver().config
 if not plugin_config.Token:
-    plugin_config.Token = (
-        os.environ.get("DANDING_API_TOKEN")
-        or os.environ.get("danding_api_token")
-        or os.environ.get("TOKEN")
-        or os.environ.get("token")
-        or ""
-    )
-    logger.debug(f"Token loaded from env: '{plugin_config.Token}'")
-    # 列出所有 DANDING 相关的环境变量
-    for k, v in os.environ.items():
-        if "DANDING" in k.upper() or "TOKEN" in k.upper():
-            logger.debug(f"ENV: {k}={v}")
+    plugin_config.Token = getattr(_driver_config, "danding_api_token", "") or os.environ.get("DANDING_API_TOKEN", "")
 if not plugin_config.EMAIL_PASSWORD:
-    plugin_config.EMAIL_PASSWORD = os.environ.get("DANDING_EMAIL_PASSWORD", "")
+    plugin_config.EMAIL_PASSWORD = getattr(_driver_config, "danding_email_password", "") or os.environ.get("DANDING_EMAIL_PASSWORD", "")
 router:dict = {
     "在线人数":"bot_online_count",
     "添加卡密":"bot_add_kami",