feat: 修复仪表盘数据管线 — 补充应用发布种子数据 + 修复limit参数解析 + LDAP认证集成 + User类型完善

后端改进:
- 修复 dashboard/recent-alerts 的 limit 参数解析 (原代码错误地将数字解析为日期)
- 为 dashboard/recent-releases 添加 limit 参数解析支持
- 新增 generateAppReleases 种子数据生成函数 (10条应用发布记录)
- 修复 AlertEvent 的 rule_name/rule_id/severity 数据一致性
- 添加 go-ldap/ldap/v3 依赖并集成 LDAP 认证处理器
- 添加 seed.go 自动种子数据初始化 (admin用户+LDAP配置)
- User model 添加 AuthSource/LDAPConfig 字段

前端改进:
- 修复 User 类型定义以匹配后端 API (real_name/is_admin/auth_source等)
- 修复 Header.tsx 的 real_name 属性引用导致 TypeScript 编译错误
- 统一 API 服务层、暗色主题样式、组件联调优化

验证:
- go build ./... 编译通过
- npm run build 构建通过
- 仪表盘发布历史、告警消息等区域数据正常展示
- 健康检查 /health 正常

backend/scripts/mock.go

@@ -52,6 +52,9 @@ func generateMockData(db *gorm.DB) error {
 	if err := generatePipelines(db); err != nil {
 		return err
 	}
+	if err := generateAppReleases(db); err != nil {
+		return err
+	}
 	if err := generateCronJobs(db); err != nil {
 		return err
 	}
@@ -210,10 +213,11 @@ func generateAlertRules(db *gorm.DB) error {
 		}
 	}
 	for i := 0; i < 20; i++ {
+		rule := rules[rand.Intn(len(rules))]
 		event := models.AlertEvent{
-			RuleID:    rules[rand.Intn(len(rules))].ID,
-			RuleName:  rules[rand.Intn(len(rules))].Name,
-			Severity:  []string{"info", "warning", "critical"}[rand.Intn(3)],
+			RuleID:    rule.ID,
+			RuleName:  rule.Name,
+			Severity:  rule.Severity,
 			Status:    []string{"firing", "resolved"}[rand.Intn(2)],
 			Target:    fmt.Sprintf("server-%03d", rand.Intn(50)+1),
 			Message:   fmt.Sprintf("告警事件 %d", i+1),
@@ -262,6 +266,66 @@ func generatePipelines(db *gorm.DB) error {
 	return nil
 }
 
+func generateAppReleases(db *gorm.DB) error {
+	apps := []string{"EZOps 前端", "EZOps 后端", "用户中心", "支付网关", "数据分析平台"}
+	environments := []string{"dev", "test", "staging", "prod"}
+	statuses := []string{"pending", "building", "deploying", "success", "success", "success", "failed", "rolled_back"}
+	authors := []string{"admin", "ops01", "dev01"}
+
+	releases := make([]models.AppRelease, 0, 10)
+	for i := 0; i < 10; i++ {
+		app := apps[i%len(apps)]
+		env := environments[rand.Intn(len(environments))]
+		status := statuses[rand.Intn(len(statuses))]
+		minor := rand.Intn(20)
+		patch := rand.Intn(10)
+
+		release := models.AppRelease{
+			AppName:     app,
+			Version:     fmt.Sprintf("v1.%d.%d", minor, patch),
+			Environment: env,
+			Status:      status,
+			CommitID:    randomString(8),
+			CommitMsg:   fmt.Sprintf("feat: 更新 %s 功能", app),
+			Author:      authors[rand.Intn(len(authors))],
+			Duration:    rand.Intn(600) + 60,
+			Description: fmt.Sprintf("%s %s 环境发布", app, env),
+		}
+
+		// Set timestamps and approval fields based on status
+		now := time.Now()
+		hoursAgo := time.Duration(rand.Intn(168)+1) * time.Hour
+
+		if status == "success" || status == "failed" {
+			approver := authors[rand.Intn(len(authors))]
+			release.Approver = approver
+			approvedAt := now.Add(-hoursAgo + 30*time.Minute)
+			release.ApprovedAt = &approvedAt
+			deployedAt := now.Add(-hoursAgo + 2*time.Hour)
+			release.DeployedAt = &deployedAt
+		} else if status == "rolled_back" {
+			approver := authors[rand.Intn(len(authors))]
+			release.Approver = approver
+			approvedAt := now.Add(-hoursAgo + 30*time.Minute)
+			release.ApprovedAt = &approvedAt
+			deployedAt := now.Add(-hoursAgo + 2*time.Hour)
+			release.DeployedAt = &deployedAt
+			rollbackAt := now.Add(-hoursAgo + 4*time.Hour)
+			release.RollbackAt = &rollbackAt
+		}
+
+		releases = append(releases, release)
+	}
+
+	for i := range releases {
+		if err := db.Create(&releases[i]).Error; err != nil {
+			return err
+		}
+	}
+	fmt.Println("Generated app releases:", len(releases))
+	return nil
+}
+
 func generateCronJobs(db *gorm.DB) error {
 	cronJobs := []models.CronJob{
 		{Name: "数据库备份", CronExpr: "0 2 * * *", Type: "script", Content: "/scripts/backup-db.sh", Enabled: true, Description: "每日凌晨 2 点备份数据库"},