Add waiting system application files

- Add main application files (main.py, models.py, schemas.py, etc.)
- Add routers for all features (waiting, attendance, members, etc.)
- Add HTML templates for admin and user interfaces
- Add migration scripts and utility files
- Add Docker configuration
- Add documentation files
- Add .gitignore to exclude database and cache files

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

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

.gitignore

@@ -0,0 +1,31 @@
+# Python
+__pycache__/
+*.py[cod]
+*$py.class
+*.so
+.Python
+env/
+venv/
+ENV/
+
+# Database
+*.db
+*.sqlite
+*.sqlite3
+
+# Logs
+logs/
+*.log
+
+# OS
+.DS_Store
+.AppleDouble
+.LSOverride
+
+# IDE
+.vscode/
+.idea/
+.claude/
+
+# Backup files
+*_backup_*.db