- Changed encoding fallback order to prioritize iso-8859-1/latin-1 over cp1252
- Increased encoding test from 1KB to 10KB to catch issues deeper in files
- Added proper file handle cleanup on encoding failures
- Resolves 'charmap codec can't decode byte 0x9d' error in rolodex import
- Tested with rolodex file containing 52,100 rows successfully
- Add SECRET_KEY environment variable and .env file for session management
- Configure SessionMiddleware with FastAPI for user session handling
- Set up Jinja2 template engine with template directory configuration
- Mount static files directory for CSS, JS, and image assets
- Create comprehensive base.html template with Bootstrap 5 CDN
- Add Bootstrap Icons and custom styling support
- Include responsive navigation with user authentication state
- Create placeholder CSS and JavaScript files for customization
- Add aiofiles dependency for static file serving
This establishes the web framework foundation with session management
and templating system ready for frontend development.