finish setup insert method, refactor sql migration file

internal/foundry/temp_models/json/authors.go

@@ -10,15 +10,19 @@ type Author struct {
 	// SystemAuthorsFlags SystemAuthorsFlags `json:"flags"`
 }
 
-func (a *Author) ToDB(dest *db.Author) bool {
+func (a *Author) ToDB(dest **db.Author) bool {
 	if dest == nil {
 		return false
 	}
 
-	dest.Name = a.Name
-	dest.URL = a.URL
-	dest.Email = a.Email
-	dest.Discord = a.Discord
+	author := &db.Author{
+		Name:    a.Name,
+		URL:     a.URL,
+		Email:   a.Email,
+		Discord: a.Discord,
+	}
+
+	*dest = author
 
 	return true
 }