Add encryption and setup wizard features

ENCRYPTION:
- Add cryptography library for secure storage
- Implement Fernet encryption for sensitive settings
- Key derived from SESSION_SECRET
- Auto-encrypt/decrypt transparent to app
- "enc:" prefix identifies encrypted values
- Graceful fallback if crypto unavailable

SETUP WIZARD:
- Detect fresh installs needing configuration
- 3-step wizard: Infrastructure, Security, AI Services
- "/" redirects to wizard if setup required
- Auto-generate session_secret option
- Skip option for advanced users
- Beautiful UI with progress indicators

UI IMPROVEMENTS:
- Enhanced sensitive field display
- Lock icon showing encryption status
- Improved show/hide toggle for passwords
- Better visual hierarchy

FILES:
- app/utils/encryption.py - Encryption utilities
- app/utils/setup_wizard.py - Wizard detection logic
- app/views/wizard.py - Wizard routes
- frontend/templates/setup_wizard.html - Wizard UI
- requirements.txt - Added cryptography
- IMPLEMENTATION_CHECKLIST.md - Status tracking

Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>

app/views/__init__.py

@@ -11,9 +11,11 @@ from app.views.dropbox import router as dropbox_router
 from app.views.google_drive import router as google_drive_router
 from app.views.license_routes import router as license_router  # Add the license router
 from app.views.settings import router as settings_router
+from app.views.wizard import router as wizard_router
 
 # Create a main router that includes all the view routers
 router = APIRouter()
+router.include_router(wizard_router)  # Wizard first (for /setup)
 router.include_router(general_router)
 router.include_router(status_router)
 router.include_router(onedrive_router)