add db models, refactor json models, add references in migrations

internal/foundry/models/db/models.go

@@ -0,0 +1,35 @@
+package db
+
+import "database/sql"
+
+// var (
+// 	ErrRecordNotFound = errors.New("record not found")
+// 	ErrEditConflict   = errors.New("edit conflict")
+// )
+
+type Models struct {
+	FoundryState FoundryStateModel
+}
+
+// type Models struct {
+// 	Movies interface {
+// 		Insert(movie *Movie) error
+// 		Get(id int64) (*Movie, error)
+// 		Update(movie *Movie) error
+// 		Delete(id int64) error
+// 		GetAll(title string, genres []string, filter Filters) ([]*Movie, Metadata, error)
+// 	}
+// }
+
+func NewModels(db *sql.DB) Models {
+	return Models{
+		FoundryState: FoundryStateModel{DB: db},
+	}
+}
+
+// func NewMockModels() Models {
+// 	return Models{
+// 		Movies: MockMovieModel{},
+// 		Users:  MockMovieModel{},
+// 	}
+// }