making strides in the device and link domain setup

packages/db/schema/link.schema.ts

@@ -0,0 +1,26 @@
+import { integer, pgTable, serial, text, timestamp, varchar } from "drizzle-orm/pg-core";
+import { device } from "./device.schema";
+import { relations } from "drizzle-orm";
+
+export const link = pgTable("link", {
+    id: serial("id").primaryKey(),
+
+    token: text("token").notNull().unique(),
+    status: varchar("status", { length: 16 }).notNull().default("active"), // "active" | "inactive" | "expired" | "revoked"
+
+    linkedDeviceId: integer("linked_device_id").references(() => device.id, {
+        onDelete: "set null",
+    }),
+
+    expiresAt: timestamp("expires_at"),
+    lastAccessedAt: timestamp("last_accessed_at"),
+    createdAt: timestamp("created_at").notNull(),
+    updatedAt: timestamp("updated_at").notNull(),
+});
+
+export const linkRelations = relations(link, ({ one }) => ({
+    device: one(device, {
+        fields: [link.linkedDeviceId],
+        references: [device.id],
+    }),
+}));