[U] Wrap into uv tool.

pyproject.toml

@@ -3,7 +3,7 @@ name = "config-man"
 version = "0.1.0"
 description = "CLI tool for managing encrypted configuration files"
 readme = "README.md"
-requires-python = ">=3.13"
+requires-python = ">=3.9"
 authors = [
     {name = "Config-Man Team", email = "team@config-man.com"}
 ]
@@ -14,6 +14,10 @@ classifiers = [
     "Intended Audience :: Developers",
     "License :: OSI Approved :: MIT License",
     "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
     "Topic :: Software Development :: Libraries :: Python Modules",
     "Topic :: System :: Systems Administration",
@@ -71,7 +75,7 @@ addopts = [
 
 [tool.black]
 line-length = 88
-target-version = ['py313']
+target-version = ['py39']
 include = '\.pyi?$'
 extend-exclude = '''
 /(
@@ -88,7 +92,7 @@ extend-exclude = '''
 '''
 
 [tool.mypy]
-python_version = "3.13"
+python_version = "3.9"
 warn_return_any = true
 warn_unused_configs = true
 disallow_untyped_defs = true