diff --git a/prisma/schema.prisma b/prisma/schema.prisma
index 374fd0e..73ae3f6 100644
--- a/prisma/schema.prisma
+++ b/prisma/schema.prisma
@@ -91,37 +91,6 @@ model token {
   updatetime   DateTime @default(now()) @db.DateTime(0)
 }
 
-model change_city {
-  id         Int       @id @default(autoincrement())
-  time       DateTime? @db.Timestamp(0)
-  city_id    Int?
-  count      Int?
-  offset_old Int?
-  offset_new Int?
-
-  @@index([time], map: "change_city_time_index")
-}
-
-model Account {
-  id                String  @id @default(cuid())
-  userId            Int     @map("user_id")
-  type              String
-  provider          String
-  providerAccountId String  @map("provider_account_id")
-  refresh_token     String? @db.Text
-  access_token      String? @db.Text
-  expires_at        Int?
-  token_type        String?
-  scope             String?
-  id_token          String? @db.Text
-  session_state     String?
-
-  user User @relation(fields: [userId], references: [id], onDelete: Cascade)
-
-  @@unique([provider, providerAccountId])
-  @@map("accounts")
-}
-
 model User {
   id        Int       @id @default(autoincrement())
   account   String    @unique
@@ -130,7 +99,6 @@ model User {
   createdAt DateTime  @default(now())
   updatedAt DateTime  @updatedAt
   sessions  Session[]
-  accounts  Account[]
 
   @@map("users")
 }
@@ -145,15 +113,3 @@ model Session {
   @@index([userId])
   @@map("sessions")
 }
-
-model VerificationCode {
-  id        Int      @id @default(autoincrement())
-  account     String
-  code      String
-  type      String
-  expiresAt DateTime
-  createdAt DateTime @default(now())
-
-  @@index([account, type])
-  @@map("verification_codes")
-}
diff --git a/src/app/dashboard/components/edge.tsx b/src/app/dashboard/components/edge.tsx
index 91ddadd..c377f77 100644
--- a/src/app/dashboard/components/edge.tsx
+++ b/src/app/dashboard/components/edge.tsx
@@ -1,7 +1,7 @@
 'use client'
 
 import { useEffect, useState } from 'react'
-import { validateNumber } from '@/lib/formatters'
+import { validateNumber } from '@/lib/utils'
 import { Pagination } from '@/components/ui/pagination'
 import { Table, TableHeader, TableBody, TableHead, TableRow, TableCell } from '@/components/ui/table'
 import { getEdgeNodes } from '@/actions/stats'
diff --git a/src/lib/formatters.ts b/src/lib/formatters.ts
deleted file mode 100644
index 67faaed..0000000
--- a/src/lib/formatters.ts
+++ /dev/null
@@ -1,9 +0,0 @@
-// 数据验证函数
-export const validateNumber = (value: unknown): number => {
-  if (typeof value === 'number') return value
-  if (typeof value === 'string') {
-    const num = parseInt(value)
-    return isNaN(num) ? 0 : num
-  }
-  return 0
-}
diff --git a/src/lib/utils.ts b/src/lib/utils.ts
index fed2fe9..c634481 100644
--- a/src/lib/utils.ts
+++ b/src/lib/utils.ts
@@ -1,6 +1,17 @@
 import { clsx, type ClassValue } from 'clsx'
 import { twMerge } from 'tailwind-merge'
 
+// 合并 className
 export function cn(...inputs: ClassValue[]) {
   return twMerge(clsx(inputs))
 }
+
+// 数据验证函数
+export const validateNumber = (value: unknown): number => {
+  if (typeof value === 'number') return value
+  if (typeof value === 'string') {
+    const num = parseInt(value)
+    return isNaN(num) ? 0 : num
+  }
+  return 0
+}