finish setup insert method, refactor sql migration file

internal/foundry/temp_models/json/grid.go

@@ -14,20 +14,24 @@ type Grid struct {
 	Thickness int     `json:"thickness,omitempty"`
 }
 
-func (g *Grid) ToDB(dest *db.Grid) bool {
+func (g *Grid) ToDB(dest **db.Grid) bool {
 	if dest == nil {
 		return false
 	}
 
-	dest.Type = g.Type
-	dest.Size = g.Size
-	dest.Color = g.Color
-	dest.Alpha = g.Alpha
-	dest.Distance = g.Distance
-	dest.Units = g.Units
-	dest.Diagonals = g.Diagonals
-	dest.Style = g.Style
-	dest.Thickness = g.Thickness
+	grid := &db.Grid{
+		Type:      g.Type,
+		Size:      g.Size,
+		Color:     g.Color,
+		Alpha:     g.Alpha,
+		Distance:  g.Distance,
+		Units:     g.Units,
+		Diagonals: g.Diagonals,
+		Style:     g.Style,
+		Thickness: g.Thickness,
+	}
+
+	*dest = grid
 
 	return true
 }