init: EZOps AIOps 智能运维平台

- 前端: React 18 + TypeScript + Vite + Tailwind CSS + shadcn/ui
- 后端: Go + Gin + GORM + JWT (golang-jwt/jwt/v5)
- 功能: 服务器管理、K8s集群、监控告警、CI/CD、自动化运维、审批流程、审计日志
- 文档: 设计文档(ROADMAP/PDD/架构/模块)

backend/internal/models/approval.go

@@ -0,0 +1,108 @@
+package models
+
+import (
+	"time"
+
+	"gorm.io/gorm"
+)
+
+// ApprovalTemplate 审批模板模型
+type ApprovalTemplate struct {
+	ID          uint           `gorm:"primarykey" json:"id"`
+	Name        string         `gorm:"size:128;not null" json:"name"`
+	Code        string         `gorm:"size:64;uniqueIndex;not null" json:"code"`
+	Description string         `gorm:"size:500" json:"description"`
+	Type        string         `gorm:"size:32;not null" json:"type"` // release, server, permission
+	FormSchema  string         `gorm:"type:text" json:"form_schema"` // JSON
+	FlowConfig  string         `gorm:"type:text" json:"flow_config"` // JSON
+	Enabled     bool           `gorm:"default:true" json:"enabled"`
+	CreatedAt   time.Time      `json:"created_at"`
+	UpdatedAt   time.Time      `json:"updated_at"`
+	DeletedAt   gorm.DeletedAt `gorm:"index" json:"-"`
+}
+
+// TableName 表名
+func (ApprovalTemplate) TableName() string {
+	return "approval_templates"
+}
+
+// ApprovalProcess 审批流程模型
+type ApprovalProcess struct {
+	ID         uint           `gorm:"primarykey" json:"id"`
+	TemplateID uint           `json:"template_id"`
+	Title      string         `gorm:"size:255;not null" json:"title"`
+	Applicant  uint           `json:"applicant"`
+	Status     string         `gorm:"size:32;default:pending" json:"status"` // pending, approved, rejected
+	FormData   string         `gorm:"type:text" json:"form_data"` // JSON
+	CurrentStep int           `gorm:"default:0" json:"current_step"`
+	TotalSteps  int           `json:"total_steps"`
+	ApprovedAt *time.Time     `json:"approved_at"`
+	RejectedAt *time.Time     `json:"rejected_at"`
+	RejectReason string       `gorm:"size:500" json:"reject_reason"`
+	CreatedAt  time.Time      `json:"created_at"`
+	UpdatedAt  time.Time      `json:"updated_at"`
+	DeletedAt  gorm.DeletedAt `gorm:"index" json:"-"`
+
+	// 关联
+	Template *ApprovalTemplate `json:"template,omitempty"`
+	ApplicantUser *User        `json:"applicant_user,omitempty"`
+	Steps    []ApprovalStep    `json:"steps,omitempty"`
+}
+
+// TableName 表名
+func (ApprovalProcess) TableName() string {
+	return "approval_processes"
+}
+
+// ApprovalStep 审批步骤模型
+type ApprovalStep struct {
+	ID        uint           `gorm:"primarykey" json:"id"`
+	ProcessID uint           `json:"process_id"`
+	Step      int            `json:"step"`
+	Approver  uint           `json:"approver"`
+	Status    string         `gorm:"size:32;default:pending" json:"status"` // pending, approved, rejected
+	Comment   string         `gorm:"size:500" json:"comment"`
+	ApprovedAt *time.Time    `json:"approved_at"`
+	CreatedAt time.Time      `json:"created_at"`
+	UpdatedAt time.Time      `json:"updated_at"`
+
+	// 关联
+	ApproverUser *User `json:"approver_user,omitempty"`
+}
+
+// TableName 表名
+func (ApprovalStep) TableName() string {
+	return "approval_steps"
+}
+
+// CreateApprovalTemplateRequest 创建审批模板请求
+type CreateApprovalTemplateRequest struct {
+	Name        string `json:"name" binding:"required"`
+	Code        string `json:"code" binding:"required"`
+	Description string `json:"description"`
+	Type        string `json:"type" binding:"required,oneof=release server permission"`
+	FormSchema  string `json:"form_schema"`
+	FlowConfig  string `json:"flow_config"`
+}
+
+// CreateApprovalProcessRequest 创建审批流程请求
+type CreateApprovalProcessRequest struct {
+	TemplateID uint   `json:"template_id" binding:"required"`
+	Title      string `json:"title" binding:"required"`
+	FormData   string `json:"form_data"`
+}
+
+// ApproveRequest 审批请求
+type ApproveRequest struct {
+	Status string `json:"status" binding:"required,oneof=approved rejected"`
+	Comment string `json:"comment"`
+}
+
+// ApprovalStats 审批统计
+type ApprovalStats struct {
+	Pending  int64 `json:"pending"`
+	Approved int64 `json:"approved"`
+	Rejected int64 `json:"rejected"`
+	Total    int64 `json:"total"`
+	MyPending int64 `json:"my_pending"`
+}