Add .gitignore and comprehensive README

Changes:
- Add .gitignore to exclude __pycache__, .claude/, and data directories
- Remove cached files and Claude config from repository
- Create detailed README.md with:
  - Project overview and features
  - Installation and setup instructions
  - Usage guide for web interface and phone operation
  - Hardware and software requirements
  - Troubleshooting section
  - API documentation
  - Auto-start configuration

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

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

.gitignore

@@ -0,0 +1,53 @@
+# Python
+__pycache__/
+*.py[cod]
+*$py.class
+*.so
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+
+# Virtual environments
+venv/
+env/
+ENV/
+.venv
+
+# IDE
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+.DS_Store
+
+# Claude Code
+.claude/
+
+# Data directories (runtime data)
+rotary_phone_data/
+recordings/
+sounds/
+
+# Configuration
+config.json
+*.backup
+
+# Logs
+*.log
+
+# OS
+Thumbs.db