diff --git a/src/lib/db.ts b/src/lib/db.ts
index 89b9d8c..5a5a1aa 100644
--- a/src/lib/db.ts
+++ b/src/lib/db.ts
@@ -33,7 +33,7 @@ function ensureDb() {
     execRaw(STATUS_HISTORY_TABLE_SQL)
     execRaw(ALERT_HISTORY_TABLE_SQL)
     execRaw(AUDIT_LOGS_TABLE_SQL)
-    execRaw(`CREATE TABLE IF NOT EXISTS users (id INTEGER PRIMARY KEY AUTOINCREMENT, username TEXT UNIQUE NOT NULL, display_name TEXT, email TEXT, role TEXT DEFAULT 'viewer', password_hash TEXT, is_active INTEGER DEFAULT 1, created_at TEXT DEFAULT (datetime('now', '+8 hours')), updated_at TEXT DEFAULT (datetime('now', '+8 hours')))`)
+    execRaw(`CREATE TABLE IF NOT EXISTS users (id INTEGER PRIMARY KEY AUTOINCREMENT, username TEXT UNIQUE NOT NULL, display_name TEXT, email TEXT, role TEXT DEFAULT 'viewer', password_hash TEXT, last_login_at TEXT, is_active INTEGER DEFAULT 1, created_at TEXT DEFAULT (datetime('now', '+8 hours')), updated_at TEXT DEFAULT (datetime('now', '+8 hours')))`)
     execRaw(`CREATE TABLE IF NOT EXISTS permissions (id INTEGER PRIMARY KEY AUTOINCREMENT, key TEXT UNIQUE NOT NULL, name TEXT NOT NULL, description TEXT, created_at TEXT DEFAULT (datetime('now', '+8 hours')))`)
     execRaw(`CREATE TABLE IF NOT EXISTS role_permissions (id INTEGER PRIMARY KEY AUTOINCREMENT, role TEXT NOT NULL, permission_key TEXT NOT NULL REFERENCES permissions(key), created_at TEXT DEFAULT (datetime('now', '+8 hours')), UNIQUE(role, permission_key))`)
     const bcrypt = require('bcryptjs')