refactor: 整理项目根目录结构

整理内容:
- 删除 60+ 临时测试输出文件 (*.txt)
- 移动二进制文件到 bin/ 目录
- 移动 Shell 脚本到 scripts/ 目录
  - scripts/dev/: check_gitea.sh, check_sub2api.sh, run_tests.sh
  - scripts/deploy/: deploy_*.sh, simple_deploy.sh
  - scripts/ops/: fix_nginx.sh, fix_ssl.sh, install_docker.sh
  - scripts/test/: test_*.sh, test_*.bat
- 移动批处理文件到 scripts/
- 移动 Python 脚本到 tools/
- 清理临时日志文件

保留根目录必要文件:
- go.mod, go.sum, go.work
- Makefile, docker-compose.yml
- .env.example, .gitignore
- README.md, AGENTS.md, DEPLOY_GUIDE.md

验证: go build ./... && go test ./... 通过

scripts/quick_check.ps1

@@ -0,0 +1,61 @@
+# 项目迁移快速检查脚本
+Write-Host "====================================" -ForegroundColor Cyan
+Write-Host "项目迁移快速检查" -ForegroundColor Cyan
+Write-Host "====================================" -ForegroundColor Cyan
+Write-Host ""
+
+# 1. 检查关键文件
+Write-Host "1. 检查关键文件..." -ForegroundColor Yellow
+$files = @("go.mod", "README.md", "cmd\server\main.go", "configs\config.yaml")
+foreach ($file in $files) {
+    $path = "D:\project\$file"
+    $status = if (Test-Path $path) { "✅" } else { "❌" }
+    Write-Host "   $status $file"
+}
+Write-Host ""
+
+# 2. 检查Go环境
+Write-Host "2. 检查Go环境..." -ForegroundColor Yellow
+try {
+    $goVersion = go version 2>&1
+    if ($LASTEXITCODE -eq 0) {
+        Write-Host "   ✅ Go已安装: $goVersion"
+    } else {
+        Write-Host "   ❌ Go未安装"
+    }
+} catch {
+    Write-Host "   ❌ Go未安装"
+}
+Write-Host ""
+
+# 3. 统计文件
+Write-Host "3. 统计文件..." -ForegroundColor Yellow
+$fileCount = (Get-ChildItem -Path D:\project -Recurse -File -ErrorAction SilentlyContinue | Measure-Object).Count
+Write-Host "   文件数: $fileCount"
+Write-Host ""
+
+# 4. 计算大小
+Write-Host "4. 计算大小..." -ForegroundColor Yellow
+$size = [math]::Round((Get-ChildItem -Path D:\project -Recurse -ErrorAction SilentlyContinue | Measure-Object -Property Length -Sum).Sum / 1MB, 2)
+Write-Host "   总大小: ${size} MB"
+Write-Host ""
+
+# 5. 检查目录结构
+Write-Host "5. 检查目录结构..." -ForegroundColor Yellow
+$dirs = @("cmd", "internal", "configs", "docs", "migrations", "deployment")
+foreach ($dir in $dirs) {
+    $path = "D:\project\$dir"
+    $status = if (Test-Path $path -PathType Container) { "✅" } else { "❌" }
+    Write-Host "   $status $dir\"
+}
+Write-Host ""
+
+Write-Host "====================================" -ForegroundColor Cyan
+Write-Host "快速检查完成！" -ForegroundColor Green
+Write-Host "====================================" -ForegroundColor Cyan
+Write-Host ""
+Write-Host "下一步:" -ForegroundColor Yellow
+Write-Host "1. 查看完整检查清单: docs\\migration\\MIGRATION_CHECKLIST.md" -ForegroundColor White
+Write-Host "2. 查看下一步操作: docs\\plans\\NEXT_STEPS.md" -ForegroundColor White
+Write-Host "3. 如果Go已安装，运行: go build ./cmd/server" -ForegroundColor White
+Write-Host ""