Initial commit

Base modular structure (phase space, Fermi function)
Initial .gitignore

pyproject.toml

@@ -0,0 +1,39 @@
+[build-system]
+requires = ["setuptools>=61.0"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "beta-spectrum"
+version = "0.1.0"
+description = "High-precision beta spectrum calculation for nuclear physics"
+authors = [
+    { name = "Your Name" }
+]
+requires-python = ">=3.10"
+
+dependencies = [
+    "numpy",
+    "scipy",
+    "matplotlib"
+]
+
+[tool.setuptools.packages.find]
+where = ["."]
+
+[project.optional-dependencies]
+dev = [
+    "pytest",
+    "black",
+    "ruff",
+    "mypy"
+]
+
+[tool.mypy]
+python_version = "3.10"
+strict = true
+
+[tool.black]
+line-length = 88
+
+[tool.ruff]
+line-length = 88