✨ add plugin metadata to builtin plugins (#2113)

packages/nonebot-plugin-docs/nonebot_plugin_docs/__init__.py

@@ -2,6 +2,17 @@ import importlib
 
 import nonebot
 from nonebot.log import logger
+from nonebot.plugin import PluginMetadata
+
+__plugin_meta__ = PluginMetadata(
+    name="NoneBot 离线文档",
+    description="在本地查看 NoneBot 文档",
+    usage="启动机器人后访问 http://localhost:port/website/ 查看文档",
+    type="application",
+    homepage="https://github.com/nonebot/nonebot2/blob/master/packages/nonebot-plugin-docs",
+    config=None,
+    supported_adapters=None,
+)
 
 
 def init():
@@ -17,7 +28,7 @@ def init():
     register_route(driver)
     host = str(driver.config.host)
     port = driver.config.port
-    if host in ["0.0.0.0", "127.0.0.1"]:
+    if host in {"0.0.0.0", "127.0.0.1"}:
         host = "localhost"
     logger.opt(colors=True).info(
         f"Nonebot docs will be running at: "