Phase 1 Complete: Preparation & Cleanup

Directory structure:
- Created src/sensorpajen/ for new Python package
- Created config/ for configuration templates
- Created legacy/ for old scripts
- Created systemd/ and debian/ for future phases

Package setup:
- Added pyproject.toml with modern Python packaging
- Created package __init__.py
- Defined dependencies: bluepy, paho-mqtt

Configuration:
- Created config/sensors.json.example (converted from INI)
- Created config/sensorpajen.env.example for environment variables
- All 8 Xiaomi sensors migrated to JSON format

Cleanup:
- Removed temperatur_koksfonstret.py (DHT11 functionality)
- Moved all legacy scripts to legacy/ folder:
  - LYWSD03MMC.py
  - bluetooth_utils.py
  - sendToMQTT.sh
  - sensorer.sh
  - startup.sh
  - sensorer.ini

Updated ROADMAP.md to mark Phase 1 as complete.

Next: Phase 2 - Python Package Structure

pyproject.toml

@@ -0,0 +1,63 @@
+[build-system]
+requires = ["setuptools>=61.0", "wheel"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "sensorpajen"
+version = "2.0.0-dev"
+description = "Bluetooth temperature sensor monitor for Xiaomi Mijia LYWSD03MMC"
+readme = "README.md"
+requires-python = ">=3.9"
+license = {text = "MIT"}
+authors = [
+    {name = "Fredrik", email = "your@email.com"}
+]
+keywords = ["bluetooth", "temperature", "sensor", "mqtt", "raspberry-pi"]
+classifiers = [
+    "Development Status :: 4 - Beta",
+    "Intended Audience :: Developers",
+    "License :: OSI Approved :: MIT License",
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Operating System :: POSIX :: Linux",
+    "Topic :: Home Automation",
+]
+
+dependencies = [
+    "bluepy>=1.3.0",
+    "paho-mqtt>=1.6.0",
+]
+
+[project.optional-dependencies]
+dev = [
+    "pytest>=7.0",
+    "pytest-cov>=4.0",
+    "black>=23.0",
+    "ruff>=0.1.0",
+]
+
+[project.urls]
+Homepage = "https://github.com/yourusername/sensorpajen"
+Repository = "https://github.com/yourusername/sensorpajen"
+
+[project.scripts]
+sensorpajen = "sensorpajen.main:main"
+
+[tool.setuptools.packages.find]
+where = ["src"]
+
+[tool.black]
+line-length = 100
+target-version = ["py39", "py310", "py311"]
+
+[tool.ruff]
+line-length = 100
+target-version = "py39"
+
+[tool.pytest.ini_options]
+testpaths = ["tests"]
+python_files = ["test_*.py"]
+python_classes = ["Test*"]
+python_functions = ["test_*"]