Initial commit - Journey book (kniha jízd) automation system

Features:
- FastAPI backend for scraping attendance and journey book data
- Deterministic kilometer distribution with random variance
- Refueling form filling with km values
- Next.js frontend with date range selector
- Docker deployment setup

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

backend/.env.example

@@ -0,0 +1,4 @@
+USERNAME=your_username
+PASSWORD=your_password
+VEHICLE_REGISTRATION=4SH1148
+DATABASE_URL=sqlite:///./journeybook.db