Bootstrap fin-hub scaffold from hub-core (CUST-WP-0025-T22/T23)

Add hub-core editable dependency, fin-specific SQLAlchemy models, and smoke tests.

pyproject.toml

@@ -0,0 +1,31 @@
+[project]
+name = "fin-hub"
+version = "0.1.0"
+description = "Financial viability hub for the FOS federation"
+requires-python = ">=3.12"
+dependencies = [
+    "hub-core",
+    "fastapi>=0.115.0",
+    "sqlalchemy[asyncio]>=2.0.0",
+    "pydantic>=2.10.0",
+]
+
+[tool.uv.sources]
+hub-core = { path = "../hub-core", editable = true }
+
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[tool.hatch.build.targets.wheel]
+packages = ["fin_hub"]
+
+[tool.pytest.ini_options]
+testpaths = ["tests"]
+pythonpath = ["src"]
+
+[dependency-groups]
+dev = [
+    "pytest>=8.0.0",
+    "pytest-asyncio>=0.24.0",
+]