chore: 移除Welds库依赖并简化项目结构

- 移除对Welds库的依赖及相关数据模型定义以简化项目结构。

src/main.rs

@@ -7,23 +7,10 @@ use axum::{
 use chrono::{prelude::*, Duration, ParseError};
 use serde::{Deserialize, Serialize};
 use std::{env, ops::Deref, sync::Arc};
-use welds::prelude::*;
 
 mod db;
 mod generate;
 
-#[derive(WeldsModel)]
-#[welds(table = "authorize")]
-pub struct Authorize {
-  #[welds(primary_key)]
-  pub id: i32,
-  pub project: String,
-  pub key: String,
-  pub device_id: String,
-  pub expire: String,
-  pub insert_time: String,
-}
-
 #[tokio::main]
 async fn main() -> Result<(), Box<dyn std::error::Error>> {
   // 根据操作系统选择数据库路径