Homebrew安装的MySQL连接失败，疑遭Anaconda干扰求助

之前一直用本地安装的MySQL处理关系型数据库需求，近几个月转做MongoDB项目，现在启动新的关系型数据项目时，用MySQL+Sequelize持续出现ECONNREFUSED错误，怀疑环境被搞乱了，整理相关信息如下：

环境信息 #

• 通过Homebrew安装MySQL，执行brew search mysql可见5.7和8.0版本共存
• 当前使用Node.js 18.19.1、Sequelize 6.29.3
• 数月前为Python课程安装过Anaconda

已尝试操作及错误反馈 #

1. 执行brew uninstall完全卸载MySQL，运行brew doctor和brew cleanup后重装，问题依旧
2. brew services start mysql显示启动成功，但直接输入mysql命令报错：

ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)

3. 在Mac OS Sonoma 14.2.1中查找my.cnf，仅在Anaconda安装目录下找到多个该文件，Homebrew安装的MySQL对应的配置文件无法定位（确认当前无Anaconda环境运行）
4. 尝试创建仅指定/tmp/mysql.sock的my.cnf并放置在/etc/mysql，无效
5. 即使Homebrew的MySQL服务显示运行，启动项目服务器仍报错：

ConnectionRefusedError [SequelizeConnectionRefusedError]: connect ECONNREFUSED 127.0.0.1:3306

6. 启动一个未使用ORM的早期MySQL项目，同样出现连接失败问题

补充异常信息 #

执行mysql.server start时，服务器尝试调用Anaconda中的资源，启动失败，出现多个Anaconda路径下的“no such file or directory”错误

此前可正常运行的项目配置 #

connection.js #

const Sequelize = require('sequelize');
require('dotenv').config();

let sequelize;

sequelize = new Sequelize(
  process.env.DB_NAME,
  process.env.DB_USER,
  process.env.DB_PASSWORD,
  {
    host: '127.0.0.1',
    dialect: 'mysql',
    port: 3306
  }
);

module.exports = sequelize;

server.js #

const path = require('path');
const express = require('express');
const session = require('express-session');
const SequelizeStore = require('connect-session-sequelize')(session.Store);

const routes = require('./controllers');
const sequelize = require('./config/connection');
const helpers = require('./utils/helpers');

const app = express();
const PORT = process.env.PORT || 3001;

const sess = {
    secret: process.env.SECRET,
    cookie: {
        maxAge: (1000 * 60 * 30),
        httpOnly: true
    },
    rolling: true,
    resave: false,
    saveUninitialized: true,
    store: new SequelizeStore({
        db: sequelize,
    })
};

app.use(session(sess));

app.use(express.json());
app.use(express.urlencoded({ extended: true }));
app.use(express.static(path.join(__dirname, 'public')));

app.use(routes);

sequelize.sync({ force: false }).then(() => {
  app.listen(PORT, () => console.log('Now listening'));
});

内容的提问来源于stack exchange，提问作者lkalliance