Initial import: home-battery ROI simulator + cracked thuisbatterijgids calc

- Hourly data exporter (InfluxDB → CSV) for prices, P1, irradiance.
- LP-based 24h-foresight oracle dispatch with SoC-consistent state engine.
- Reverse-engineered thuisbatterijgids.nl formula (matches their quotes
  to within €0.50 across three battery configs).
- Catalog scraper for the 52 batteries on thuisbatterijgids.net via their
  /wp-json REST endpoint.
- Web app (Flask) that ranks every catalog battery by honest payback and
  contrasts with the store's quote, deployable via the included Procfile.

pyproject.toml

@@ -0,0 +1,22 @@
+[project]
+name = "pluginbattery"
+version = "0.1.0"
+description = "Backtest the ROI of a home battery against historical hourly data."
+requires-python = ">=3.12"
+dependencies = [
+    "pandas>=2.2",
+    "scipy>=1.13",
+    "numpy>=2.0",
+    "flask>=3.0",
+    "gunicorn>=21.0",
+]
+
+[dependency-groups]
+dev = ["pytest>=8.0"]
+
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[tool.hatch.build.targets.wheel]
+packages = ["src/pluginbattery"]