Restore mcbladerf from 2026-02-08 working copy

Recovered from editor file-history snapshots; the original directory
was never committed and has since been removed.

Makefile

@@ -0,0 +1,20 @@
+.PHONY: setup run test clean
+
+# SoapySDR requires system Python with its bindings installed
+# This creates a venv with access to system site-packages
+setup:
+	@echo "Creating venv with system site-packages (required for SoapySDR)..."
+	uv venv --system-site-packages --python 3.14
+	@echo "Installing dependencies..."
+	uv pip install -e .
+	@echo ""
+	@echo "Setup complete! Run with: uv run mcbladerf"
+
+run:
+	uv run mcbladerf
+
+test:
+	uv run python -c "import SoapySDR; print('SoapySDR OK'); from mcbladerf import device; print(f'Devices: {len(device.list_devices())}')"
+
+clean:
+	rm -rf .venv __pycache__ src/mcbladerf/__pycache__ .ruff_cache