Stand up the Engine/PIP surface for MAT-WP-0001

Declare layer.yaml, add a Python engine over a local SQLite store,
and cover deterministic assessment, the §13 gap register, stance-map
inventory, claim guardrails, and the gate-house review path with tests.

Assistant: grok
Assistant-Session: 01a04ceb-150e-7e80-a542-ec8b1372e164

pyproject.toml

@@ -0,0 +1,40 @@
+[build-system]
+requires = ["setuptools>=68", "wheel"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "maturity-engine"
+version = "0.1.0"
+description = "Deterministic maturity assessment, gap register, and capability readiness for NetKingdom."
+readme = "README.md"
+requires-python = ">=3.12"
+authors = [{ name = "Coulomb" }]
+dependencies = []
+
+[project.optional-dependencies]
+dev = [
+    "pytest>=7.4,<9.0",
+    "ruff>=0.6,<1.0",
+    "pyyaml>=6.0,<7.0",
+]
+
+[project.scripts]
+maturity-engine = "maturity_engine.cli:main"
+
+[tool.setuptools.packages.find]
+where = ["src"]
+
+[tool.pytest.ini_options]
+testpaths = ["tests"]
+pythonpath = ["src"]
+addopts = [
+    "--strict-markers",
+    "--tb=short",
+]
+
+[tool.ruff]
+line-length = 100
+target-version = "py312"
+
+[tool.ruff.lint]
+select = ["E", "F", "I", "B"]