backend: 拆分API路由至router目录并重构存储模块，优化数据库交互与历史消息查询功能

app.js

@@ -1,9 +1,9 @@
 import express from "express";
 import http from "http";
 import log4js from "log4js";
-import apiRouter from "./api.js"
+import apiRouter from "./router/api.js"
 import { Server } from "socket.io";
-import { saveToDatabase } from "./storage.js";
+import { saveToDatabase } from "./utils/storage.js";
 import { onlineList, clientMap } from "./data.js";
 
 const PORT = process.env.PORT || 5691;

router/api.js

@@ -1,6 +1,6 @@
 import express from 'express';
-import { loadHistory, getDatabaseState } from "./storage.js";
-import { onlineList } from './data.js';
+import { loadHistory, getDatabaseState } from "../utils/storage.js";
+import { onlineList } from '../data.js';
 
 const router = express.Router();
 

utils/storage.js

@@ -5,7 +5,7 @@ const logger = log4js.getLogger("db")
 
 const sequelize = new Sequelize({
     dialect: 'sqlite',
-    storage: './data.db'
+    storage: process.env.DB_PATH || './data/data.db'
 })
 
 let dbReady = false;