feat: add user_stats, audit_logs and verification tokens schema

Made-with: Cursor

src/db/schema/userQuestionLog.ts

@@ -0,0 +1,17 @@
+import { pgTable, uuid, timestamp } from 'drizzle-orm/pg-core';
+import { users } from './users.js';
+import { questionBank } from './questionBank.js';
+
+export const userQuestionLog = pgTable('user_question_log', {
+  id: uuid('id').primaryKey().defaultRandom(),
+  userId: uuid('user_id')
+    .notNull()
+    .references(() => users.id, { onDelete: 'cascade' }),
+  questionBankId: uuid('question_bank_id')
+    .notNull()
+    .references(() => questionBank.id, { onDelete: 'cascade' }),
+  seenAt: timestamp('seen_at', { withTimezone: true }).notNull().defaultNow(),
+});
+
+export type UserQuestionLog = typeof userQuestionLog.$inferSelect;
+export type NewUserQuestionLog = typeof userQuestionLog.$inferInsert;