fix: 修复章节API的Next.js 16兼容性问题

- 更新chapter/[id]/route.ts使用Promise params (Next.js 16要求)
- 删除过时的app/api/db目录下的旧API文件(bookDB/userDB等不存在的导出)
- 添加部署脚本deploy-to-server.sh
- 添加章节迁移脚本migrate-chapters-to-db.ts

app/api/db/users/route.ts

@@ -1,114 +0,0 @@
-import { NextRequest, NextResponse } from 'next/server'
-import { userDB } from '@/lib/db'
-
-// 获取所有用户
-export async function GET(req: NextRequest) {
-  try {
-    const { searchParams } = new URL(req.url)
-    const id = searchParams.get('id')
-    const phone = searchParams.get('phone')
-
-    if (id) {
-      const user = await userDB.getById(id)
-      return NextResponse.json({ success: true, user })
-    }
-
-    if (phone) {
-      const user = await userDB.getByPhone(phone)
-      return NextResponse.json({ success: true, user })
-    }
-
-    const users = await userDB.getAll()
-    return NextResponse.json({ success: true, users })
-  } catch (error: any) {
-    console.error('Get users error:', error)
-    return NextResponse.json({ 
-      success: false, 
-      error: error.message 
-    }, { status: 500 })
-  }
-}
-
-// 创建用户
-export async function POST(req: NextRequest) {
-  try {
-    const body = await req.json()
-    const { phone, nickname, password, referral_code, referred_by } = body
-
-    // 检查手机号是否已存在
-    const existing = await userDB.getByPhone(phone)
-    if (existing) {
-      return NextResponse.json({ 
-        success: false, 
-        error: '该手机号已注册' 
-      }, { status: 400 })
-    }
-
-    const user = await userDB.create({
-      id: `user_${Date.now()}`,
-      phone,
-      nickname,
-      password,
-      referral_code: referral_code || `REF${Date.now().toString(36).toUpperCase()}`,
-      referred_by
-    })
-
-    return NextResponse.json({ success: true, user })
-  } catch (error: any) {
-    console.error('Create user error:', error)
-    return NextResponse.json({ 
-      success: false, 
-      error: error.message 
-    }, { status: 500 })
-  }
-}
-
-// 更新用户
-export async function PUT(req: NextRequest) {
-  try {
-    const body = await req.json()
-    const { id, ...updates } = body
-
-    if (!id) {
-      return NextResponse.json({ 
-        success: false, 
-        error: '缺少用户ID' 
-      }, { status: 400 })
-    }
-
-    await userDB.update(id, updates)
-    const user = await userDB.getById(id)
-    
-    return NextResponse.json({ success: true, user })
-  } catch (error: any) {
-    console.error('Update user error:', error)
-    return NextResponse.json({ 
-      success: false, 
-      error: error.message 
-    }, { status: 500 })
-  }
-}
-
-// 删除用户
-export async function DELETE(req: NextRequest) {
-  try {
-    const { searchParams } = new URL(req.url)
-    const id = searchParams.get('id')
-
-    if (!id) {
-      return NextResponse.json({ 
-        success: false, 
-        error: '缺少用户ID' 
-      }, { status: 400 })
-    }
-
-    await userDB.delete(id)
-    return NextResponse.json({ success: true })
-  } catch (error: any) {
-    console.error('Delete user error:', error)
-    return NextResponse.json({ 
-      success: false, 
-      error: error.message 
-    }, { status: 500 })
-  }
-}