KI-AGENT: Persistente App-Sessions mit Refresh-Tokens ergänzen

backend/db/schema/auth_refresh_tokens.ts

@@ -0,0 +1,20 @@
+import { pgTable, text, timestamp, uuid, bigint } from "drizzle-orm/pg-core"
+
+import { authUsers } from "./auth_users"
+import { tenants } from "./tenants"
+
+export const authRefreshTokens = pgTable("auth_refresh_tokens", {
+    id: uuid("id").primaryKey().defaultRandom(),
+    userId: uuid("user_id")
+        .notNull()
+        .references(() => authUsers.id, { onDelete: "cascade", onUpdate: "cascade" }),
+    tenantId: bigint("tenant_id", { mode: "number" })
+        .references(() => tenants.id, { onDelete: "set null", onUpdate: "cascade" }),
+    tokenHash: text("token_hash").notNull().unique(),
+    createdAt: timestamp("created_at", { withTimezone: true }).notNull().defaultNow(),
+    expiresAt: timestamp("expires_at", { withTimezone: true }).notNull(),
+    revokedAt: timestamp("revoked_at", { withTimezone: true }),
+})
+
+export type AuthRefreshToken = typeof authRefreshTokens.$inferSelect
+export type NewAuthRefreshToken = typeof authRefreshTokens.$inferInsert