refactor: 全局代码模块化重构 — 所有文件<700行

后端 handler 拆分:
- automation.go(1067→4文件), server.go(1011→5文件), ldap.go(815→3文件), user.go(704→2文件)

前端组件拆分:
- SystemManager(1782→569), AlertManager(1133→220), K8sClusters(1062→4文件)
- Dashboard(941→4文件), ServerManager(905→640), ApprovalFlow(830→548)
- AlertCenter(775→693), AIPredictiveAnalytics(760→670)
- CloudBilling(728→663), GrafanaDashboard(717→643), sidebar(726→689)

Mock 数据模块化:
- mocks/data.ts(2552行→barrel+11个domain模块)

新增 CLAUDE.md 项目全局开发规范

修复: AlertCenter/LogManager ListResponse.data→.list 类型不匹配
验证: go build ✅ + tsc --noEmit ✅ + npm run build ✅

backend/internal/models/ops_modules.go

@@ -0,0 +1,90 @@
+package models
+
+import (
+	"time"
+
+	"gorm.io/gorm"
+)
+
+// AnsiblePlaybook Playbook 模型 // Logan.Li
+type AnsiblePlaybook struct {
+	ID          uint           `gorm:"primarykey" json:"id"`
+	Name        string         `gorm:"size:255;not null" json:"name"`
+	Description string         `gorm:"type:text" json:"description"`
+	Content     string         `gorm:"type:text;not null" json:"content"` // YAML 内容
+	Tags        string         `gorm:"size:500" json:"tags"`              // 逗号分隔
+	Category    string         `gorm:"size:100" json:"category"`          // deployment/maintenance/etc
+	CreatedBy   string         `gorm:"size:255" json:"created_by"`
+	CreatedAt   time.Time      `json:"created_at"`
+	UpdatedAt   time.Time      `json:"updated_at"`
+	DeletedAt   gorm.DeletedAt `gorm:"index" json:"-"`
+}
+
+func (AnsiblePlaybook) TableName() string { return "ansible_playbooks" }
+
+// AnsibleJob 执行任务记录 // Logan.Li
+type AnsibleJob struct {
+	ID            uint           `gorm:"primarykey" json:"id"`
+	PlaybookID    uint           `gorm:"not null" json:"playbook_id"`
+	PlaybookName  string         `gorm:"size:255" json:"playbook_name"`
+	Status        string         `gorm:"size:20;default:pending" json:"status"` // pending/running/success/failed
+	TargetHosts   string         `gorm:"type:text" json:"target_hosts"`         // JSON 数组
+	Variables     string         `gorm:"type:text" json:"variables"`            // JSON
+	Output        string         `gorm:"type:text" json:"output"`
+	Duration      int64          `gorm:"default:0" json:"duration"` // 毫秒
+	TriggeredBy   string         `gorm:"size:255" json:"triggered_by"`
+	StartedAt     *time.Time     `json:"started_at"`
+	CompletedAt   *time.Time     `json:"completed_at"`
+	CreatedAt     time.Time      `json:"created_at"`
+	UpdatedAt     time.Time      `json:"updated_at"`
+	DeletedAt     gorm.DeletedAt `gorm:"index" json:"-"`
+}
+
+func (AnsibleJob) TableName() string { return "ansible_jobs" }
+
+// AnsibleInventory 主机清单 // Logan.Li
+type AnsibleInventory struct {
+	ID          uint           `gorm:"primarykey" json:"id"`
+	Name        string         `gorm:"size:255;not null" json:"name"`
+	Description string         `gorm:"type:text" json:"description"`
+	Hosts       string         `gorm:"type:text" json:"hosts"` // JSON 数组 [{name,ip,port,user,os}]
+	CreatedBy   string         `gorm:"size:255" json:"created_by"`
+	CreatedAt   time.Time      `json:"created_at"`
+	UpdatedAt   time.Time      `json:"updated_at"`
+	DeletedAt   gorm.DeletedAt `gorm:"index" json:"-"`
+}
+
+func (AnsibleInventory) TableName() string { return "ansible_inventories" }
+
+// LogSource 日志源 // Logan.Li
+type LogSource struct {
+	ID        uint           `gorm:"primarykey" json:"id"`
+	Name      string         `gorm:"size:255;not null" json:"name"`
+	Type      string         `gorm:"size:50;not null" json:"type"` // application/syslog/docker/kubernetes
+	Status    string         `gorm:"size:20;default:active" json:"status"`
+	Config    string         `gorm:"type:text" json:"config"` // JSON {path/pattern}
+	LogCount  int64          `gorm:"default:0" json:"log_count"`
+	LastSeen  *time.Time     `json:"last_seen"`
+	CreatedAt time.Time      `json:"created_at"`
+	UpdatedAt time.Time      `json:"updated_at"`
+	DeletedAt gorm.DeletedAt `gorm:"index" json:"-"`
+}
+
+func (LogSource) TableName() string { return "log_sources" }
+
+// LogEntry 日志条目 // Logan.Li
+type LogEntry struct {
+	ID        uint           `gorm:"primarykey" json:"id"`
+	SourceID  uint           `gorm:"index" json:"source_id"`
+	Timestamp time.Time      `gorm:"index" json:"timestamp"`
+	Level     string         `gorm:"size:20;index" json:"level"` // error/warn/info/debug
+	Service   string         `gorm:"size:255;index" json:"service"`
+	Host      string         `gorm:"size:255;index" json:"host"`
+	Message   string         `gorm:"type:text" json:"message"`
+	TraceID   string         `gorm:"size:100;index" json:"trace_id"`
+	Raw       string         `gorm:"type:text" json:"raw"`
+	CreatedAt time.Time      `json:"created_at"`
+	DeletedAt gorm.DeletedAt `gorm:"index" json:"-"`
+}
+
+func (LogEntry) TableName() string { return "log_entries" }