fix: include main.py in wheel for uvx install

Hatchling doesn't auto-discover single-file modules.
Explicitly list main.py and olivetin_mcp.py in wheel targets.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: vaddisrinivas

pyproject.toml

@@ -60,6 +60,9 @@ lint = [
 requires = ["hatchling"]
 build-backend = "hatchling.build"
 
+[tool.hatch.build.targets.wheel]
+packages = ["main.py", "olivetin_mcp.py"]
+
 [tool.uv]
 package = true