Refactor code structure and remove redundant changes

PHASE_2_AUTHENTICATION_PROGRESS.md

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+# Phase 2: Authentication - Progress Summary
+
+**Status:** 🟡 In Progress (50% Complete)  
+**Started:** 2025-11-09  
+**Updated:** 2025-11-09  
+
+---
+
+## ✅ Completed Work
+
+### 1. Package Updates & Dependencies
+- [x] Updated Django to 5.1.3 (latest stable)
+- [x] Updated all packages to latest versions
+- [x] Added `webauthn==2.2.0` for passkey support
+- [x] Added `qrcode==8.0` for TOTP QR codes
+- [x] Created `pyproject.toml` for uv package management
+- [x] Updated `requirements/base.txt` with all latest versions
+
+### 2. Frontend Type Definitions
+- [x] Created `lib/types/auth.ts`
+  - User, UserProfile, UserRole types
+  - Authentication request/response types  
+  - MFA/TOTP types
+  - OAuth types (prepared for future)
+  - Auth state and context types
+  - Token management types
+
+### 3. Token Management
+- [x] Created `lib/services/auth/tokenStorage.ts`
+  - localStorage-based token storage
+  - Token validation and expiry checking
+  - Automatic token refresh logic
+  - JWT payload decoding
+  - SSR-safe implementation
+
+### 4. Core Authentication Service
+- [x] Created `lib/services/auth/authService.ts`
+  - Login with email/password
+  - User registration
+  - Logout functionality
+  - Token refresh
+  - Get current user
+  - Profile management (update, change password)
+  - Password reset flow
+  - Email verification
+  - Email change functionality
+
+### 5. MFA Service
+- [x] Created `lib/services/auth/mfaService.ts`
+  - TOTP setup and enable
+  - TOTP verification
+  - MFA challenge during login
+  - TOTP disable
+  - Backup code generation
+  - Backup code usage