Add primary key to FilesTypeForMachine table

Added a new 'id' column as the primary key with a unique constraint and default random value generation for the 'FilesTypeForMachine' table. This ensures each row has a unique identifier.

apps/backend/src/app/db/schema.ts

@@ -170,6 +170,8 @@ export const FilesForMachinesTable = pgTable("files_for_machines", {
 });
 
 export const FilesTypeForMachine = pgTable("f_type_for_machines", {
+	id: p.uuid("id").unique().primaryKey().defaultRandom().notNull(),
+
 	machineId: p
 		.uuid("machine_id")
 		.notNull()