Fix UV configuration and add Makefile

**Issues Fixed:**
- Removed [tool.uv.scripts] (not supported by UV)
- Updated requires-python from >=3.7 to >=3.8 (Flask requirement)
- Removed tool.uv.dev-dependencies (deprecated)

**Makefile Added:**
- make start - Run the wedding phone system
- make test - Run audio tests
- make install - Install dependencies
- make clean - Clean temporary files
- make help - Show available commands

**Service Updated:**
- Changed ExecStart from 'uv run start' to 'make start'
- Uses Makefile for proper UV execution

**Documentation Updated:**
- Primary method now uses Make commands
- Added UV direct commands as alternative
- Updated file structure to include Makefile

**Usage:**
```bash
# Recommended
make start

# Alternative
uv run python rotary_phone_web.py

# Service uses make internally
sudo systemctl start wedding-phone
```

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

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

Makefile

@@ -0,0 +1,35 @@
+# Wedding Phone Makefile
+# Simple commands to run the wedding phone system
+
+.PHONY: start test install clean help
+
+start:
+	@echo "Starting Wedding Phone System..."
+	uv run python rotary_phone_web.py
+
+test:
+	@echo "Running audio tests..."
+	uv run python test_complete.py
+
+install:
+	@echo "Installing dependencies..."
+	uv pip install -e .
+
+clean:
+	@echo "Cleaning up..."
+	rm -rf __pycache__ .pytest_cache templates/
+	find . -type d -name "__pycache__" -exec rm -rf {} + 2>/dev/null || true
+	find . -type f -name "*.pyc" -delete
+
+help:
+	@echo "Wedding Phone - Available Commands:"
+	@echo ""
+	@echo "  make start    - Start the wedding phone system"
+	@echo "  make test     - Run audio tests"
+	@echo "  make install  - Install dependencies"
+	@echo "  make clean    - Clean temporary files"
+	@echo "  make help     - Show this help message"
+	@echo ""
+	@echo "Or use UV directly:"
+	@echo "  uv run python rotary_phone_web.py"
+	@echo "  uv run python test_complete.py"