Dashboard (/dashboard):
- Welcome header with user name
- Stats cards: upcoming sessions, completed, role (mentor/mentee)
- Mentor registration CTA for non-mentors
- Upcoming sessions list with status badges
- Profile card with avatar and gradient header
Settings (/dashboard/settings):
- Account Details: displays user info and role
- Privacy & Security: 2FA (coming soon), change password, active sessions
- Preferences: email notifications, language, theme
- FAQ & Support: expandable FAQ accordion with contact info
Dashboard Layout:
- Top nav with Dimentorin branding
- Navigation links: Dashboard, Settings
- Auth guard redirects to login if not authenticated
- Logout button
Closes#42, #43, #54
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
