fix: add keywords and classifiers

Signed-off-by: Frost Ming <me@frostming.com>

Author: frostming

pyproject.toml

@@ -7,6 +7,14 @@ dependencies = ["mcp>=1"]
 requires-python = ">=3.10"
 readme = "README.md"
 license = {text = "MIT"}
+keywords = ["mcp"]
+
+classifiers = [
+    "Intended Audience :: Developers",
+    "Intended Audience :: Science/Research",
+    "License :: OSI Approved :: MIT License",
+    "Programming Language :: Python :: 3",
+]
 
 [project.scripts]
 template-mcp-server = "template_mcp_server:main"