同步工作区更新：优化安装脚本与更新脚本，添加文档与测试脚本

scripts/test_update.sh

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+#!/bin/bash
+# 测试更新脚本的各个功能模块
+
+set -e
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+cd "$SCRIPT_DIR/.."
+
+echo "=========================================="
+echo "CTMS 更新脚本功能测试"
+echo "=========================================="
+echo ""
+
+# 1. 测试帮助信息
+echo "1. 测试帮助信息显示"
+bash scripts/update.sh --help >/dev/null 2>&1 && echo "   ✓ 帮助信息正常" || echo "   ✗ 帮助信息失败"
+echo ""
+
+# 2. 测试参数解析
+echo "2. 测试参数解析"
+bash scripts/update.sh dev --repo-url https://test.git --branch main --yes --skip-backup 2>&1 | grep -q "确认更新参数" && echo "   ✓ 参数解析正常" || echo "   ✗ 参数解析失败"
+echo ""
+
+# 3. 测试 Git 检查
+echo "3. 测试 Git 环境检查"
+if git rev-parse --git-dir >/dev/null 2>&1; then
+    echo "   ✓ Git 仓库检测正常"
+else
+    echo "   ✗ 不是 Git 仓库"
+fi
+echo ""
+
+# 4. 测试项目身份验证
+echo "4. 测试项目特征文件检查"
+check_count=0
+[[ -f "scripts/install.sh" ]] && ((check_count++))
+[[ -f "docker-compose.yaml" ]] && ((check_count++))
+[[ -f "backend/app/main.py" ]] && ((check_count++))
+[[ -f "README.md" ]] && ((check_count++))
+
+if [[ $check_count -ge 2 ]]; then
+    echo "   ✓ 项目特征文件检测正常（找到 $check_count 个）"
+else
+    echo "   ✗ 项目特征文件不足（仅找到 $check_count 个）"
+fi
+echo ""
+
+# 5. 测试脚本权限
+echo "5. 测试脚本执行权限"
+if [[ -x "scripts/update.sh" ]]; then
+    echo "   ✓ 更新脚本可执行"
+else
+    echo "   ✗ 更新脚本不可执行"
+fi
+echo ""
+
+# 6. 测试当前分支检测
+echo "6. 测试当前分支检测"
+current_branch=$(git branch --show-current 2>/dev/null || echo "unknown")
+if [[ -n "$current_branch" && "$current_branch" != "unknown" ]]; then
+    echo "   ✓ 当前分支: $current_branch"
+else
+    echo "   ✗ 无法检测当前分支"
+fi
+echo ""
+
+# 7. 测试远程地址检测
+echo "7. 测试远程仓库地址检测"
+remote_url=$(git config "remote.origin.url" 2>/dev/null || echo "")
+if [[ -n "$remote_url" ]]; then
+    echo "   ✓ 远程地址: $remote_url"
+else
+    echo "   ✗ 未配置远程仓库"
+fi
+echo ""
+
+echo "=========================================="
+echo "测试完成！"
+echo "=========================================="