Added Backend

backend/db/schema/globalmessagesseen.ts

@@ -0,0 +1,17 @@
+import {
+    pgTable,
+    timestamp,
+    bigint,
+} from "drizzle-orm/pg-core"
+
+import { globalmessages } from "./globalmessages"
+
+export const globalmessagesseen = pgTable("globalmessagesseen", {
+    message: bigint("message", { mode: "number" })
+        .notNull()
+        .references(() => globalmessages.id),
+
+    seenAt: timestamp("seen_at", { withTimezone: true })
+        .notNull()
+        .defaultNow(),
+})