Toreleon fix dependencies (#25)

* Enhance test for 'init' command to skip config creation when it exists

* Refactor dependencies in pyproject.toml to separate optional dependencies and clean up main dependencies section

Author: toreleon

pyproject.toml

@@ -21,14 +21,14 @@ classifiers = [
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
 ]
-dependencies = [
-    "python-dotenv>=1.0.0,<2.0.0",
-    "build (>=1.2.2.post1,<2.0.0)",
-    "twine (>=6.1.0,<7.0.0)",
-]
+dependencies = []
 requires-python = "<4.0,>=3.10"
 
 [project.optional-dependencies]
+dev = [
+    "build>=1.2.2.post1,<2.0.0",
+    "twine>=6.1.0,<7.0.0",
+]
 openai = [
     "openai-agents (>=0.0.9,<0.0.10)",
 ]
@@ -54,5 +54,4 @@ mcphub = "mcphub.cli.commands:main"
 
 [tool.poetry.group.dev.dependencies]
 pytest = "^8.3.5"
-pytest-asyncio = "^0.26.0"
-
+pytest-asyncio = "^0.26.0"