feat: add migration scripts

backend/run-migration.ps1

@@ -0,0 +1,45 @@
+# 运行数据库迁移
+# 用途: 添加general_conversations和general_messages表
+
+Write-Host "========================================" -ForegroundColor Cyan
+Write-Host "  执行数据库迁移: 添加通用对话表" -ForegroundColor Cyan
+Write-Host "========================================" -ForegroundColor Cyan
+Write-Host ""
+
+# 读取.env获取数据库连接信息
+$envFile = Get-Content .env
+$dbUrl = ($envFile | Select-String "DATABASE_URL").ToString().Split('=')[1].Trim()
+
+Write-Host "📦 数据库URL: $($dbUrl.Substring(0, 30))..." -ForegroundColor Yellow
+Write-Host ""
+
+# 使用Prisma db push（开发环境最快）
+Write-Host "[1/2] 同步数据库Schema..." -ForegroundColor Green
+npx prisma db push --skip-generate
+
+if ($LASTEXITCODE -eq 0) {
+    Write-Host "✅ Schema同步成功！" -ForegroundColor Green
+    Write-Host ""
+    
+    Write-Host "[2/2] 生成Prisma Client..." -ForegroundColor Green
+    npx prisma generate
+    
+    if ($LASTEXITCODE -eq 0) {
+        Write-Host "✅ Prisma Client生成成功！" -ForegroundColor Green
+        Write-Host ""
+        Write-Host "========================================" -ForegroundColor Cyan
+        Write-Host "  ✅ 迁移完成！请重启后端服务" -ForegroundColor Cyan
+        Write-Host "========================================" -ForegroundColor Cyan
+    } else {
+        Write-Host "❌ Prisma Client生成失败" -ForegroundColor Red
+    }
+} else {
+    Write-Host "❌ Schema同步失败，请检查数据库连接" -ForegroundColor Red
+    Write-Host ""
+    Write-Host "💡 提示：请确保PostgreSQL服务正在运行" -ForegroundColor Yellow
+}
+
+Write-Host ""
+Write-Host "按任意键退出..."
+$null = $Host.UI.RawUI.ReadKey("NoEcho,IncludeKeyDown")
+