feat: Swap to uv native build backend and add upgrade target in Makefile

Author: andrewginns

Makefile

@@ -2,6 +2,9 @@ install:
 	uv sync
 	npm install -g @mermaid-js/mermaid-cli
 
+upgrade:
+	uv sync -U
+
 lint:
 	uv run ruff check .
 

pyproject.toml

@@ -25,9 +25,10 @@ dependencies = [
     "streamlit>=1.45.1",
 ]
 
-[tool.hatch.build.targets.wheel]
-packages = ["agents_mcp_usage"]
+[tool.uv.build-backend]
+module-name = "agents_mcp_usage"
+module-root = ""
 
 [build-system]
-requires = ["hatchling"]
-build-backend = "hatchling.build"
+requires = ["uv_build>=0.7.19,<0.8.0"]
+build-backend = "uv_build"