add minimal structure

bscan/main.py

@@ -0,0 +1,6 @@
+def main() -> None:
+    pass
+
+
+if __name__ == "__main__":
+    main()

pyproject.toml

@@ -0,0 +1,21 @@
+[project]
+name = "bscan"
+version = "0.1.0"
+dependencies = []
+
+[project.optional-dependencies]
+dev = [
+    "black",
+    "mypy",
+    "ruff",
+    "pytest"
+]
+
+[build-system]
+build-backend = 'setuptools.build_meta'
+requires = [
+    'setuptools',
+]
+
+[project.scripts]
+bscan = "bscan:main/main"