Add activities page.

server/model/activity.go

@@ -0,0 +1,31 @@
+package model
+
+import (
+	"gorm.io/gorm"
+	"time"
+)
+
+type ActivityType uint
+
+const (
+	ActivityTypeUnknown ActivityType = iota
+	ActivityTypeNewResource
+	ActivityTypeUpdateResource
+	ActivityTypeNewComment
+)
+
+type Activity struct {
+	gorm.Model
+	UserID uint         `gorm:"not null"`
+	Type   ActivityType `gorm:"not null"`
+	RefID  uint         `gorm:"not null"` // Reference ID for the resource or comment
+}
+
+type ActivityView struct {
+	ID       uint                     `json:"id"`
+	Time     time.Time                `json:"time"`
+	Type     ActivityType             `json:"type"`
+	User     UserView                 `json:"user"`
+	Comment  *CommentWithResourceView `json:"comment,omitempty"`
+	Resource *ResourceView            `json:"resource,omitempty"`
+}