feat(supervisor): add invite, bind, and read-only overview

internal/quitcheckin/model/supervisor_binding.go

@@ -0,0 +1,28 @@
+package model
+
+import (
+	"time"
+
+	"gorm.io/gorm"
+)
+
+// SupervisorBinding 表示监督关系（一对：owner -> supervisor）。
+type SupervisorBinding struct {
+	ID        uint           `gorm:"primaryKey;comment:主键" json:"id"`
+	CreatedAt time.Time      `gorm:"comment:创建时间" json:"created_at"`
+	UpdatedAt time.Time      `gorm:"comment:更新时间" json:"updated_at"`
+	DeletedAt gorm.DeletedAt `gorm:"index;comment:删除时间" json:"-"`
+
+	OwnerUID      int `gorm:"column:owner_uid;uniqueIndex:uniq_owner_supervisor;index;comment:被监督用户ID" json:"owner_uid"`
+	SupervisorUID int `gorm:"column:supervisor_uid;uniqueIndex:uniq_owner_supervisor;index;comment:监督人用户ID" json:"supervisor_uid"`
+
+	Status string `gorm:"column:status;size:16;index;comment:状态(active|revoked)" json:"status"`
+}
+
+func (SupervisorBinding) TableName() string {
+	return "fa_quit_checkin_supervisor_binding"
+}
+
+func (SupervisorBinding) TableComment() string {
+	return "V2-无烟打卡-监督关系"
+}