fix db relations + display sandboxes on dash

backend/database/src/schema.ts

@@ -1,5 +1,6 @@
 import { integer, sqliteTable, text } from "drizzle-orm/sqlite-core";
 import { createId } from "@paralleldrive/cuid2";
+import { relations } from "drizzle-orm";
 
 export const user = sqliteTable("user", {
 	id: text("id")
@@ -10,14 +11,30 @@ export const user = sqliteTable("user", {
 	email: text("email").notNull(),
 });
 
+export type User = typeof user.$inferSelect;
+
+export const userRelations = relations(user, ({ many }) => ({
+	sandbox: many(sandbox),
+}));
+
 export const sandbox = sqliteTable("sandbox", {
 	id: text("id")
 		.$defaultFn(() => createId())
 		.primaryKey()
 		.unique(),
 	name: text("name").notNull(),
-	type: text("text", { enum: ["react", "node"] }).notNull(),
+	type: text("type", { enum: ["react", "node"] }).notNull(),
+	bucket: text("bucket"),
 	userId: text("user_id")
 		.notNull()
 		.references(() => user.id),
 });
+
+export type Sandbox = typeof sandbox.$inferSelect;
+
+export const sandboxRelations = relations(sandbox, ({ one }) => ({
+	author: one(user, {
+		fields: [sandbox.userId],
+		references: [user.id],
+	}),
+}));