Refactor: Consolidate Sessions into Security Tab

docs/ACCOUNT_SECURITY_IMPROVEMENTS.md

@@ -1,5 +1,31 @@
 # Account Security Improvements
 
+## UI Consolidation: Sessions Merged into Security Tab
+
+**Date**: 2025-01-14
+
+**Changes**:
+- Merged `SessionsTab` functionality into `SecurityTab` "Active Sessions & Login History" section
+- Removed redundant `SessionsTab.tsx` component
+- Reduced settings navigation from 7 tabs to 6 tabs
+- Added proper TypeScript types with `DeviceInfo` interface
+
+**Benefits**:
+- All security-related features in one location (password, 2FA, social accounts, sessions)
+- Eliminated 123 lines of duplicate code
+- Improved UX with logical grouping of authentication and session management
+- Simplified navigation structure
+- Better type safety with typed device information
+
+**Technical Details**:
+- Session management uses existing `user_sessions` table with proper RLS
+- Real-time session fetching via Supabase query
+- Device detection from `device_info` JSONB column
+- Session revocation with proper error handling and toast notifications
+- Type-safe interfaces for `DeviceInfo` and `UserSession`
+
+---
+
 ## Implemented Security Enhancements
 
 This document outlines all security improvements made to the account settings system.