feat: 新增脚手架/开发模式/权限白名单/system-monitor插件

- nebula create mod/key/list-templates 模组脚手架
- nebula dev 开发模式热重载
- manifest permissions.imports 权限白名单机制
- system-monitor 系统监控仪表盘插件
- 默认端口统一为 10086
- 修复 _init_nbpf 误读 Ed25519 私钥为 RSA 的 bug
- 更新 README.md 文档

oss/core/http_api/server.py

@@ -29,7 +29,7 @@ class HttpServer:
     def __init__(self, router, middleware, host=None, port=None):
         config = get_config()
         self.host = host or config.get("HOST", "127.0.0.1")
-        self.port = port or config.get("HTTP_API_PORT", 8080)
+        self.port = port or config.get("HTTP_API_PORT", 10086)
         self.router = router
         self.middleware = middleware
         self._server = None