diff --git a/src/db/schema/auditLogs.ts b/src/db/schema/auditLogs.ts
new file mode 100644
index 0000000..4141dee
--- /dev/null
+++ b/src/db/schema/auditLogs.ts
@@ -0,0 +1,18 @@
+import { pgTable, uuid, varchar, timestamp } from 'drizzle-orm/pg-core';
+import { jsonb } from 'drizzle-orm/pg-core';
+import { users } from './users.js';
+
+export const auditLogs = pgTable('audit_logs', {
+  id: uuid('id').primaryKey().defaultRandom(),
+  adminId: uuid('admin_id')
+    .notNull()
+    .references(() => users.id, { onDelete: 'cascade' }),
+  action: varchar('action', { length: 100 }).notNull(),
+  targetType: varchar('target_type', { length: 50 }).notNull(),
+  targetId: uuid('target_id').notNull(),
+  details: jsonb('details').$type<Record<string, unknown>>(),
+  createdAt: timestamp('created_at', { withTimezone: true }).notNull().defaultNow(),
+});
+
+export type AuditLog = typeof auditLogs.$inferSelect;
+export type NewAuditLog = typeof auditLogs.$inferInsert;
diff --git a/src/db/schema/index.ts b/src/db/schema/index.ts
index e7a3efc..e7b0e0b 100644
--- a/src/db/schema/index.ts
+++ b/src/db/schema/index.ts
@@ -7,3 +7,7 @@ export * from './testQuestions.js';
 export * from './questionBank.js';
 export * from './questionCacheMeta.js';
 export * from './questionReports.js';
+export * from './userStats.js';
+export * from './auditLogs.js';
+export * from './userQuestionLog.js';
+export * from './verificationTokens.js';
diff --git a/src/db/schema/userQuestionLog.ts b/src/db/schema/userQuestionLog.ts
new file mode 100644
index 0000000..51bea14
--- /dev/null
+++ b/src/db/schema/userQuestionLog.ts
@@ -0,0 +1,17 @@
+import { pgTable, uuid, timestamp } from 'drizzle-orm/pg-core';
+import { users } from './users.js';
+import { questionBank } from './questionBank.js';
+
+export const userQuestionLog = pgTable('user_question_log', {
+  id: uuid('id').primaryKey().defaultRandom(),
+  userId: uuid('user_id')
+    .notNull()
+    .references(() => users.id, { onDelete: 'cascade' }),
+  questionBankId: uuid('question_bank_id')
+    .notNull()
+    .references(() => questionBank.id, { onDelete: 'cascade' }),
+  seenAt: timestamp('seen_at', { withTimezone: true }).notNull().defaultNow(),
+});
+
+export type UserQuestionLog = typeof userQuestionLog.$inferSelect;
+export type NewUserQuestionLog = typeof userQuestionLog.$inferInsert;
diff --git a/src/db/schema/userStats.ts b/src/db/schema/userStats.ts
new file mode 100644
index 0000000..732cc15
--- /dev/null
+++ b/src/db/schema/userStats.ts
@@ -0,0 +1,26 @@
+import { pgTable, uuid, integer, timestamp } from 'drizzle-orm/pg-core';
+import { unique } from 'drizzle-orm/pg-core';
+import { stackEnum, levelEnum } from './enums.js';
+import { users } from './users.js';
+
+export const userStats = pgTable(
+  'user_stats',
+  {
+    id: uuid('id').primaryKey().defaultRandom(),
+    userId: uuid('user_id')
+      .notNull()
+      .references(() => users.id, { onDelete: 'cascade' }),
+    stack: stackEnum('stack').notNull(),
+    level: levelEnum('level').notNull(),
+    totalQuestions: integer('total_questions').notNull().default(0),
+    correctAnswers: integer('correct_answers').notNull().default(0),
+    testsTaken: integer('tests_taken').notNull().default(0),
+    lastTestAt: timestamp('last_test_at', { withTimezone: true }),
+  },
+  (t) => ({
+    userStackLevelUnique: unique().on(t.userId, t.stack, t.level),
+  })
+);
+
+export type UserStat = typeof userStats.$inferSelect;
+export type NewUserStat = typeof userStats.$inferInsert;
diff --git a/src/db/schema/verificationTokens.ts b/src/db/schema/verificationTokens.ts
new file mode 100644
index 0000000..5bf62a9
--- /dev/null
+++ b/src/db/schema/verificationTokens.ts
@@ -0,0 +1,22 @@
+import { pgTable, uuid, varchar, timestamp } from 'drizzle-orm/pg-core';
+import { users } from './users.js';
+
+export const emailVerificationCodes = pgTable('email_verification_codes', {
+  id: uuid('id').primaryKey().defaultRandom(),
+  userId: uuid('user_id')
+    .notNull()
+    .references(() => users.id, { onDelete: 'cascade' }),
+  code: varchar('code', { length: 10 }).notNull(),
+  expiresAt: timestamp('expires_at', { withTimezone: true }).notNull(),
+  createdAt: timestamp('created_at', { withTimezone: true }).notNull().defaultNow(),
+});
+
+export const passwordResetTokens = pgTable('password_reset_tokens', {
+  id: uuid('id').primaryKey().defaultRandom(),
+  userId: uuid('user_id')
+    .notNull()
+    .references(() => users.id, { onDelete: 'cascade' }),
+  tokenHash: varchar('token_hash', { length: 255 }).notNull(),
+  expiresAt: timestamp('expires_at', { withTimezone: true }).notNull(),
+  createdAt: timestamp('created_at', { withTimezone: true }).notNull().defaultNow(),
+});