feat: introduce feed management for individual and professor modules across frontend and backend services.

services/ical/model/feedModel.go

@@ -27,6 +27,9 @@ type BaseModel struct {
 type Feed struct {
 	Modules   string   `db:"modules" json:"modules"`
 	Retrieved JSONTime `db:"retrieved" json:"retrieved"`
+	Deleted   bool     `db:"deleted" json:"deleted"`
+	Type      string   `db:"type" json:"type"` // "prof" or "student"
+	User      string   `db:"user" json:"user"` // Relation to users table
 	BaseModel
 }