功能: 新增 AgentInstallToken 模型与 Node token 轮换字段

server/internal/model/agent_install_token.go

@@ -0,0 +1,36 @@
+package model
+
+import "time"
+
+// AgentInstallToken 一次性安装令牌，用于 /install/:token 公开端点。
+//
+// 生命周期：创建 → 消费（ConsumedAt 非空即作废）→ 超过 ExpiresAt 后被 GC 硬删除。
+type AgentInstallToken struct {
+	ID          uint       `gorm:"primaryKey" json:"id"`
+	Token       string     `gorm:"size:64;uniqueIndex;not null" json:"token"`
+	NodeID      uint       `gorm:"not null;index" json:"nodeId"`
+	Mode        string     `gorm:"size:16;not null" json:"mode"`        // systemd|docker|foreground
+	Arch        string     `gorm:"size:16;not null" json:"arch"`        // amd64|arm64|auto
+	AgentVer    string     `gorm:"size:32;not null" json:"agentVersion"`
+	DownloadSrc string     `gorm:"size:16;not null;default:'github'" json:"downloadSrc"`
+	ExpiresAt   time.Time  `gorm:"not null;index" json:"expiresAt"`
+	ConsumedAt  *time.Time `json:"consumedAt,omitempty"`
+	CreatedByID uint       `gorm:"not null" json:"createdById"`
+	CreatedAt   time.Time  `json:"createdAt"`
+}
+
+func (AgentInstallToken) TableName() string { return "agent_install_tokens" }
+
+// 合法模式/架构/下载源常量
+const (
+	InstallModeSystemd    = "systemd"
+	InstallModeDocker     = "docker"
+	InstallModeForeground = "foreground"
+
+	InstallArchAmd64 = "amd64"
+	InstallArchArm64 = "arm64"
+	InstallArchAuto  = "auto"
+
+	InstallSourceGitHub  = "github"
+	InstallSourceGhproxy = "ghproxy"
+)